/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #0E4F46;
  --primary-dark: #093A33;
  --accent: #C4A052;
  --accent-light: #D8B96A;
  --bg: #F6F4EE;
  --bg-white: #FFFFFF;
  --bg-deep: #072A26;
  --text: #1B2322;
  --text-light: #5B6B68;
  --text-mute: #8A9693;
  --border: #E5E0D5;
  --border-accent: #C4A052;
  --success: #2E7D5C;
  --warning: #B45309;
  --radius-lg: 24px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-card: 0 2px 8px rgba(14,79,70,.06);
  --shadow-hover: 0 12px 36px rgba(14,79,70,.12);
  --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", "SF Mono", monospace;
}

/* ===== 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, select, textarea { font-family: inherit; }
ul { list-style: none; }
.container { max-width: 1280px; padding-left: 24px; padding-right: 24px; }

/* ===== 通用按钮体系 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-md);
  padding: 12px 28px;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  border: 1.5px solid transparent;
  transition: all .25s ease;
}
.btn:focus-visible { outline: 3px solid rgba(196,160,82,.4); outline-offset: 2px; }
.btn-gold {
  background: var(--accent);
  color: #1B2322;
  border-color: var(--accent);
}
.btn-gold:hover { background: var(--accent-light); border-color: var(--accent-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(196,160,82,.35); color: #1B2322; }
.btn-gold:active { transform: translateY(0); box-shadow: none; }
.btn-primary-custom {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary-custom:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(14,79,70,.3); color: #fff; }
.btn-primary-custom:active { transform: translateY(0); }
.btn-outline-custom {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline-custom:hover { background: rgba(14,79,70,.06); color: var(--primary-dark); border-color: var(--primary-dark); }
.btn-outline-light-custom {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.7);
}
.btn-outline-light-custom:hover { background: rgba(255,255,255,.12); color: #fff; border-color: #fff; transform: translateY(-2px); }
.btn-block-custom { width: 100%; }

/* ===== 区块通用 ===== */
.section-pad { padding: 100px 0; }
.section-head { margin-bottom: 56px; max-width: 720px; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(14,79,70,.08);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 16px;
}
.section-head p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-light);
  margin-bottom: 0;
}
.section-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--primary);
  font-size: 15px;
}
.section-more i { transition: transform .25s ease; }
.section-more:hover i { transform: translateX(4px); }
.section-more:hover { color: var(--primary-dark); }

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1080;
  height: 80px;
  display: flex;
  align-items: center;
  background: transparent;
  transition: background .35s ease, box-shadow .35s ease, border-color .35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.header-scrolled {
  background: rgba(246,244,238,.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(14,79,70,.05);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; }
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.1;
}
.brand-main {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--primary);
}
.brand-sub {
  display: block;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--text-mute);
  text-transform: uppercase;
}
.header-scrolled .brand-main { color: var(--primary); }
.main-nav ul { display: flex; align-items: center; gap: 34px; margin: 0; padding: 0; }
.main-nav a {
  position: relative;
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 0;
  letter-spacing: .02em;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.main-nav a:hover::after,
.main-nav a.active::after { transform: scaleX(1); }
.main-nav a:hover, .main-nav a.active { color: var(--primary); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.header-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(196,160,82,.6);
  background: rgba(255,255,255,.8);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 999px;
  white-space: nowrap;
}
.header-status .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
  display: inline-block;
}
.header-cta { padding: 10px 24px; font-size: 14px; }
.mobile-toggle {
  display: none;
  width: 44px; height: 44px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
  background: rgba(14,79,70,.08);
}
.mobile-menu {
  position: fixed;
  top: 80px; left: 0; right: 0; bottom: 0;
  background: rgba(246,244,238,.98);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  z-index: 1070;
  padding: 32px 24px 48px;
  transform: translateY(-102%);
  transition: transform .4s ease;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu .mobile-nav { display: flex; flex-direction: column; gap: 6px; flex: 1; }
.mobile-menu .mobile-nav a {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  padding: 14px 8px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.mobile-menu .mobile-nav a.active { color: var(--primary); }
.mobile-menu .mobile-nav a i { font-size: 16px; color: var(--text-mute); }
.mobile-menu .mobile-cta { margin-top: 32px; width: 100%; }
.mobile-menu .mobile-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-mute);
}

/* ===== Hero ===== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 160px 0 100px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  background-image: url('/assets/images/backpic/back-1.webp');
  animation: heroZoom 10s ease-in-out infinite alternate;
}
@keyframes heroZoom {
  from { transform: scale(1.05); }
  to { transform: scale(1.1); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7,42,38,.88) 0%, rgba(7,42,38,.72) 42%, rgba(7,42,38,.32) 72%, rgba(7,42,38,.18) 100%);
}
.hero-content { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.5);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  padding: 7px 18px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  margin-bottom: 28px;
  letter-spacing: .03em;
}
.hero-title {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: #fff;
  margin-bottom: 18px;
}
.hero-title .brand-line {
  display: block;
  color: var(--accent-light);
  margin-top: 6px;
}
.hero-subtitle {
  font-size: clamp(17px, 1.6vw, 20px);
  color: rgba(255,255,255,.88);
  line-height: 1.6;
  margin-bottom: 36px;
  max-width: 560px;
  font-weight: 400;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 42px; }
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  color: rgba(255,255,255,.66);
  font-size: 14px;
}
.hero-trust span { display: inline-flex; align-items: center; gap: 8px; }
.hero-trust span + span::before {
  content: "";
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  margin-right: 4px;
}
.hero-visual { position: relative; z-index: 2; display: flex; justify-content: flex-end; }
.hero-card {
  background: rgba(255,255,255,.94);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  padding: 32px;
  width: 100%;
  max-width: 400px;
  animation: floatCard 4s ease-in-out infinite;
}
@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.hero-card-top {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}
.hero-card-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: rgba(14,79,70,.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}
.hero-card-top strong { display: block; font-size: 20px; font-weight: 800; color: var(--text); line-height: 1.3; }
.hero-card-top span { font-size: 13px; color: var(--text-mute); }
.hero-card-list { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-card-list span {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-light);
  font-size: 13px;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 999px;
}
.hero-float-badge {
  position: absolute;
  top: 42px; right: -18px;
  background: var(--accent);
  color: #1B2322;
  font-size: 14px;
  font-weight: 700;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(196,160,82,.4);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: floatBadge 3.4s ease-in-out infinite;
}
@keyframes floatBadge {
  0%, 100% { transform: translateY(0) rotate(2deg); }
  50% { transform: translateY(-6px) rotate(-1deg); }
}

/* ===== 信任徽标条 ===== */
.trust-bar { background: var(--bg-white); border-bottom: 1px solid var(--border); padding: 30px 0; }
.trust-bar .container { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; }
.trust-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
}
.trust-item i { color: var(--accent); font-size: 18px; }

/* ===== 方案卡片区 ===== */
.solutions-section { padding: 100px 0; }
.solution-card {
  position: relative;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 40px;
  height: 100%;
  overflow: hidden;
  transition: box-shadow .35s ease, transform .35s ease;
}
.solution-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.solution-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.solution-card:hover::before { transform: scaleX(1); }
.solution-card .sol-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 64px;
  font-weight: 800;
  color: var(--border);
  line-height: 1;
  display: block;
  margin-bottom: 22px;
}
.solution-card .sol-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: rgba(14,79,70,.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
  transition: transform .35s ease;
}
.solution-card:hover .sol-icon { transform: rotate(-6deg) scale(1.05); }
.solution-card h3 { font-size: clamp(19px, 1.8vw, 26px); font-weight: 700; color: var(--text); margin-bottom: 12px; letter-spacing: -0.01em; }
.solution-card p { font-size: 15px; line-height: 1.75; color: var(--text-light); margin-bottom: 20px; }
.solution-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.solution-tags span {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-light);
  background: var(--bg);
  border-radius: 999px;
  padding: 5px 13px;
  border: 1px solid var(--border);
}
.solution-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
  transition: gap .3s ease, color .3s ease;
}
.solution-link:hover { gap: 12px; color: var(--warning); }
.grid-stagger { display: grid; grid-template-columns: repeat(12, 1fr); gap: 28px; }
.grid-stagger .span-8 { grid-column: span 8; }
.grid-stagger .span-4 { grid-column: span 4; }
.grid-stagger .span-5 { grid-column: span 5; }
.grid-stagger .span-7 { grid-column: span 7; }

/* ===== 数据区 ===== */
.stats-section {
  background: var(--bg-deep);
  padding: 90px 0;
  position: relative;
}
.stats-section::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 40px; height: 2px;
  background: var(--accent);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item {
  position: relative;
  text-align: center;
  padding: 20px 24px;
}
.stat-item + .stat-item::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 64px;
  background: rgba(255,255,255,.18);
}
.stat-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(40px, 5vw, 60px);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 12px;
}
.stat-unit { font-size: 20px; font-weight: 600; color: var(--accent-light); }
.stat-label { font-size: 14px; color: rgba(255,255,255,.68); letter-spacing: .05em; }
.stats-note {
  margin-top: 48px;
  text-align: center;
  color: rgba(255,255,255,.5);
  font-size: 14px;
  letter-spacing: .04em;
}

/* ===== 资讯区 ===== */
.news-section { padding: 100px 0; }
.news-section .section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 48px; }
.news-section .section-head .section-more { margin-bottom: 8px; flex-shrink: 0; }
.news-list { display: grid; gap: 24px; }
.news-item {
  display: flex;
  align-items: stretch;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow .3s ease, transform .3s ease;
  position: relative;
  border-left: 3px solid transparent;
}
.news-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-left-color: var(--accent); }
.news-info { flex: 0 0 70%; max-width: 70%; padding: 30px 34px; display: flex; flex-direction: column; justify-content: center; }
.news-cat {
  display: inline-block;
  align-self: flex-start;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: .04em;
}
.news-item h3 {
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.news-meta { display: flex; align-items: center; justify-content: space-between; }
.news-meta .news-date { font-size: 13px; color: var(--text-mute); display: inline-flex; align-items: center; gap: 6px; }
.news-meta .news-read { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; transition: gap .3s ease; }
.news-item:hover .news-read { gap: 10px; }
.news-thumb { flex: 0 0 30%; max-width: 30%; min-height: 200px; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }

.news-empty {
  border: 1.5px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 70px 24px;
  text-align: center;
  color: var(--text-mute);
  background: rgba(255,255,255,.5);
}
.news-empty i { font-size: 44px; display: block; margin-bottom: 12px; color: var(--border); }
.news-empty p { font-size: 15px; margin: 0; }

/* ===== FAQ ===== */
.faq-section { padding: 100px 0; background: var(--bg-white); }
.faq-wrapper { max-width: 860px; margin: 0 auto; }
.accordion-item {
  border: none;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: transparent;
  border-radius: 0 !important;
}
.accordion-item:first-of-type { border-top: 1px solid var(--border); }
.accordion-button {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  background: transparent;
  padding: 22px 24px 22px 20px;
  border-radius: 0 !important;
  box-shadow: none !important;
  transition: color .25s ease, background .25s ease;
  letter-spacing: .01em;
  position: relative;
}
.accordion-button:not(.collapsed) {
  background: rgba(255,255,255,.6);
  color: var(--primary);
  box-shadow: none;
  border-left: 3px solid var(--accent);
  padding-left: 17px;
}
.accordion-button::after {
  background-image: none;
  content: "\F282";
  font-family: "bootstrap-icons", sans-serif;
  font-size: 16px;
  transition: transform .3s ease;
  color: var(--primary);
  width: auto; height: auto;
  background-size: unset;
}
.accordion-button:not(.collapsed)::after { transform: rotate(180deg); background-image: none; }
.accordion-button:focus { box-shadow: none; }
.accordion-body {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-light);
  padding: 4px 24px 26px 20px;
}

/* ===== 表单转化区 ===== */
.contact-section { padding: 100px 0; background: var(--bg); }
.contact-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 72px; align-items: center; }
.contact-info .section-head { margin-bottom: 24px; }
.contact-info .desc { font-size: 16px; line-height: 1.85; color: var(--text-light); max-width: 520px; }
.contact-points { margin-top: 36px; display: grid; gap: 22px; }
.contact-point { display: flex; gap: 16px; align-items: flex-start; }
.contact-point .cp-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  background: rgba(14,79,70,.08);
  color: var(--primary);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-point strong { display: block; font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.contact-point span { font-size: 14px; color: var(--text-light); }
.contact-form-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 44px;
}
.contact-form-card h3 { font-size: 24px; font-weight: 800; color: var(--text); margin-bottom: 6px; }
.contact-form-card .form-desc { font-size: 14px; color: var(--text-mute); margin-bottom: 32px; }
.form-label { font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.form-control, .form-select {
  height: 48px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg);
  font-size: 14px;
  color: var(--text);
  padding: 0 16px;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.form-control:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(196,160,82,.2);
  background: var(--bg-white);
  color: var(--text);
}
textarea.form-control { height: auto; padding: 14px 16px; resize: vertical; min-height: 100px; }
.form-group { margin-bottom: 24px; }
.form-submit { height: 56px; font-size: 16px; font-weight: 700; }
.privacy-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 0;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--text-mute);
  line-height: 1.6;
  cursor: pointer;
}
.privacy-check input[type="checkbox"] {
  width: 17px; height: 17px;
  border-radius: 4px;
  border: 1.5px solid var(--primary);
  accent-color: var(--primary);
  margin-top: 2px;
  flex-shrink: 0;
  cursor: pointer;
}
.privacy-check a { color: var(--primary); text-decoration: underline; }
.privacy-note {
  margin-top: 20px;
  padding: 14px 18px;
  background: var(--bg);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--border-accent);
  font-size: 13px;
  color: var(--text-mute);
  line-height: 1.65;
}
.form-success {
  display: none;
  text-align: center;
  padding: 48px 20px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.form-success .fs-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: rgba(46,125,92,.12);
  color: var(--success);
  font-size: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.form-success h4 { font-size: 22px; font-weight: 800; color: var(--text); margin-bottom: 10px; }
.form-success p { font-size: 15px; color: var(--text-light); margin-bottom: 0; }

/* ===== 页脚 ===== */
.site-footer { background: var(--bg-deep); padding: 80px 0 0; color: rgba(255,255,255,.7); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1.1fr 1.2fr; gap: 56px; padding-bottom: 60px; }
.footer-brand .brand-main {
  color: #fff;
  font-size: 24px;
  font-weight: 800;
  display: block;
  margin-bottom: 10px;
  letter-spacing: .01em;
}
.footer-brand .brand-sub { color: rgba(255,255,255,.45); letter-spacing: .16em; font-size: 10px; text-transform: uppercase; }
.footer-brand .footer-intro { font-size: 14px; line-height: 1.8; margin-top: 20px; color: rgba(255,255,255,.55); max-width: 320px; }
.social-icons { display: flex; gap: 12px; margin-top: 24px; }
.social-icons a {
  width: 38px; height: 38px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: rgba(255,255,255,.7);
  transition: all .25s ease;
}
.social-icons a:hover { background: var(--accent); color: #1B2322; border-color: var(--accent); transform: translateY(-2px); }
.footer-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 22px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.footer-links { display: grid; gap: 12px; }
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,.6);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color .25s ease, padding-left .25s ease;
}
.footer-links a i { font-size: 10px; color: var(--accent); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact { display: grid; gap: 16px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; color: rgba(255,255,255,.6); line-height: 1.7; }
.footer-contact li i { color: var(--accent); font-size: 16px; margin-top: 3px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255,255,255,.4);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 浮动咨询按钮 ===== */
.floating-consult {
  position: fixed;
  right: 28px; bottom: 32px;
  z-index: 1060;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #1B2322;
  font-size: 15px;
  font-weight: 700;
  padding: 13px 24px;
  border-radius: 999px;
  box-shadow: 0 10px 30px rgba(196,160,82,.45);
  transition: transform .25s ease, box-shadow .25s ease;
}
.floating-consult:hover { transform: translateY(-3px); box-shadow: 0 14px 36px rgba(196,160,82,.5); color: #1B2322; }
.floating-consult .pulse-dot {
  position: relative;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}
.floating-consult .pulse-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--success);
  animation: pulse 2s ease-out infinite;
}
@keyframes pulse {
  0% { transform: scale(.6); opacity: 1; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* ===== 弹窗 ===== */
.modal-content { border: none; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-hover); }
.modal-header {
  background: var(--bg-deep);
  border-bottom: none;
  padding: 22px 28px;
  color: #fff;
}
.modal-header .modal-title { font-size: 19px; font-weight: 800; color: #fff; letter-spacing: .02em; }
.modal-header .btn-close { filter: invert(1) grayscale(1); opacity: .8; }
.modal-body { padding: 32px 28px; background: var(--bg-white); }

/* ===== 响应式 ===== */
@media (max-width: 1199px) {
  .hero-section { min-height: auto; padding: 150px 0 80px; }
  .hero-visual .hero-card { max-width: 360px; }
  .contact-grid { gap: 48px; }
}
@media (max-width: 991px) {
  .main-nav, .header-actions .header-cta, .header-status { display: none; }
  .mobile-toggle { display: inline-flex; }
  .site-header { height: 72px; }
  .mobile-menu { top: 72px; }
  .hero-section { padding: 130px 0 70px; text-align: left; }
  .hero-visual { margin-top: 60px; justify-content: flex-start; }
  .hero-float-badge { right: 20px; }
  .grid-stagger .span-8, .grid-stagger .span-4,
  .grid-stagger .span-5, .grid-stagger .span-7 { grid-column: span 12; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item::before { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 56px; }
  .news-info { flex: 0 0 62%; max-width: 62%; padding: 26px 28px; }
  .news-thumb { flex: 0 0 38%; max-width: 38%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}
@media (max-width: 767px) {
  .section-pad { padding: 60px 0; }
  .solutions-section, .news-section, .faq-section, .contact-section { padding: 60px 0; }
  .hero-section { padding: 120px 0 60px; }
  .hero-title { font-size: 30px; }
  .hero-subtitle { font-size: 16px; }
  .trust-bar .container { justify-content: center; gap: 12px; }
  .news-item { flex-direction: column; }
  .news-info { flex: 1 1 auto; max-width: 100%; padding: 24px; }
  .news-thumb { flex: 1 1 auto; max-width: 100%; min-height: 180px; }
  .news-thumb img { height: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .floating-consult { right: 16px; bottom: 20px; padding: 11px 18px; font-size: 14px; }
  .contact-form-card { padding: 30px 24px; }
}
@media (max-width: 520px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .brand-main { font-size: 20px; }
  .brand-sub { font-size: 9px; }
  .hero-ctas .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { padding: 18px 0; }
  .accordion-button { font-size: 16px; padding: 18px 16px 18px 14px; }
  .accordion-body { padding: 4px 16px 22px 14px; }
  .contact-grid { gap: 40px; }
}

/* roulang page: category1 */
:root{
      --primary:#0E4F46;
      --primary-dark:#093A33;
      --accent:#C4A052;
      --accent-light:#D8B96A;
      --bg:#F6F4EE;
      --bg-white:#FFFFFF;
      --bg-deep:#072A26;
      --text:#1B2322;
      --text-light:#5B6B68;
      --text-mute:#8A9693;
      --border:#E5E0D5;
      --border-accent:#C4A052;
      --success:#2E7D5C;
      --warning:#B45309;
      --radius-lg:24px;
      --radius-md:14px;
      --radius-sm:8px;
      --shadow-card:0 2px 8px rgba(14,79,70,.06);
      --shadow-hover:0 12px 36px rgba(14,79,70,.12);
      --font-main:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
      --font-num:"Roboto Mono","SF Mono",monospace;
    }

    *,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
    body{
      font-family:var(--font-main);
      font-size:16px;
      font-weight:400;
      line-height:1.8;
      letter-spacing:0.02em;
      color:var(--text);
      background:var(--bg);
      -webkit-font-smoothing:antialiased;
    }
    a{text-decoration:none;color:inherit;transition:color .25s ease;}
    img{max-width:100%;display:block;}
    button,input,textarea,select{font-family:inherit;}
    ul{list-style:none;}
    h1,h2,h3,h4,h5{font-weight:700;letter-spacing:-0.01em;line-height:1.3;}
    .container{max-width:1280px;padding-left:24px;padding-right:24px;margin:0 auto;}
    section{position:relative;}

    /* ========== 导航 ========== */
    .site-header{
      position:fixed;top:0;left:0;right:0;z-index:1050;
      height:80px;
      background:rgba(246,244,238,.6);
      backdrop-filter:blur(16px);
      -webkit-backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(229,224,213,.5);
      transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
    }
    .site-header.scrolled{
      background:rgba(246,244,238,.92);
      border-bottom-color:var(--border);
      box-shadow:0 4px 24px rgba(14,79,70,.05);
    }
    .header-inner{height:80px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
    .brand-link{display:flex;flex-direction:column;line-height:1.1;flex-shrink:0;}
    .brand-main{font-size:24px;font-weight:800;color:var(--primary);letter-spacing:0.01em;}
    .brand-sub{font-size:10px;color:var(--text-mute);letter-spacing:0.32em;text-transform:uppercase;margin-top:2px;font-family:var(--font-num);}
    .nav-toggle{
      display:none;
      width:44px;height:44px;border:1px solid var(--border);border-radius:var(--radius-sm);
      background:var(--bg-white);flex-direction:column;align-items:center;justify-content:center;gap:5px;
      cursor:pointer;transition:border-color .25s ease;
    }
    .nav-toggle:hover{border-color:var(--primary);}
    .nav-toggle span{width:18px;height:2px;background:var(--primary);border-radius:2px;transition:transform .3s ease,opacity .3s ease;}
    .nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
    .nav-toggle.open span:nth-child(2){opacity:0;}
    .nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

    .main-nav{display:flex;align-items:center;gap:8px;}
    .main-nav ul{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none;}
    .main-nav ul li a{
      display:block;padding:10px 18px;font-size:15px;font-weight:500;color:var(--text-light);
      border-radius:var(--radius-sm);position:relative;transition:color .25s ease,background .25s ease;
    }
    .main-nav ul li a:hover{color:var(--primary);background:rgba(14,79,70,.05);}
    .main-nav ul li a.active{color:var(--primary);font-weight:700;}
    .main-nav ul li a.active::after{
      content:"";position:absolute;left:18px;right:18px;bottom:2px;height:2px;background:var(--accent);border-radius:2px;
    }
    .nav-cta{
      margin-left:16px;
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 28px;border-radius:var(--radius-md);border:none;
      font-size:15px;font-weight:600;font-family:var(--font-main);
      transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease;
      cursor:pointer;line-height:1.2;
    }
    .btn:focus-visible{outline:3px solid rgba(196,160,82,.4);outline-offset:2px;}
    .btn-accent{
      background:var(--accent);color:#13201D;font-weight:700;
    }
    .btn-accent:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(196,160,82,.3);}
    .btn-accent:active{transform:translateY(0);box-shadow:none;}
    .btn-primary{
      background:var(--primary);color:#fff;
    }
    .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 24px rgba(14,79,70,.25);}
    .btn-primary:active{transform:translateY(0);box-shadow:none;}
    .btn-outline{
      background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.8);font-weight:600;
    }
    .btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px);}
    .btn-outline:active{transform:translateY(0);}

    /* ========== 小型Hero ========== */
    .page-hero{
      padding:180px 0 100px;
      background:linear-gradient(100deg,rgba(7,42,38,.82) 20%,rgba(7,42,38,.45) 70%,rgba(7,42,38,.35) 100%),url('/assets/images/backpic/back-1.webp') center center/cover no-repeat;
      color:#fff;
      position:relative;
    }
    .page-hero::after{
      content:"";position:absolute;bottom:0;left:0;right:0;height:1px;
      background:linear-gradient(90deg,transparent,var(--accent) 30%,var(--accent) 70%,transparent);
    }
    .page-hero .hero-tag{
      display:inline-flex;align-items:center;gap:8px;
      padding:6px 18px;border-radius:50px;border:1px solid rgba(196,160,82,.7);
      font-size:13px;font-weight:500;color:var(--accent-light);letter-spacing:0.05em;
      background:rgba(7,42,38,.4);margin-bottom:20px;
    }
    .page-hero h1{
      font-size:clamp(32px,4.5vw,52px);font-weight:800;color:#fff;
      line-height:1.2;max-width:860px;margin-bottom:18px;
    }
    .page-hero h1 .accent-text{color:var(--accent-light);}
    .page-hero .hero-desc{
      font-size:16px;color:rgba(255,255,255,.85);max-width:680px;line-height:1.9;
      margin-bottom:32px;
    }
    .hero-breadcrumb{
      display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.7);
      margin-bottom:24px;
    }
    .hero-breadcrumb a{color:rgba(255,255,255,.85);}
    .hero-breadcrumb a:hover{color:var(--accent-light);}
    .hero-breadcrumb .sep{color:var(--accent);}

    /* ========== 布局数据 ========== */
    .stats-section{padding:80px 0;background:var(--bg);}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center;}
    .stat-item{position:relative;}
    .stat-item + .stat-item::before{
      content:"";position:absolute;left:-16px;top:50%;transform:translateY(-50%);
      width:1px;height:56px;background:var(--border);
    }
    .stat-item .stat-num{
      font-family:var(--font-num);font-variant-numeric:tabular-nums;
      font-size:clamp(36px,4vw,52px);font-weight:800;color:var(--primary);
      line-height:1.1;display:block;
    }
    .stat-item .stat-num em{font-style:normal;font-size:14px;font-weight:700;margin-left:4px;color:var(--accent);}
    .stat-item .stat-label{font-size:14px;color:var(--text-light);margin-top:8px;letter-spacing:0.05em;}

    /* ========== 板块标题 ========== */
    .section-head{text-align:center;max-width:720px;margin:0 auto 56px;}
    .section-head .sec-tag{
      display:inline-block;font-size:13px;font-weight:600;color:var(--primary);
      letter-spacing:0.12em;text-transform:uppercase;margin-bottom:14px;
      padding:4px 16px;border:1px solid var(--border-accent);border-radius:50px;background:rgba(196,160,82,.08);
    }
    .section-head h2{font-size:clamp(26px,3vw,38px);font-weight:800;color:var(--text);margin-bottom:14px;}
    .section-head .sec-desc{font-size:15px;color:var(--text-light);line-height:1.8;}
    .section-head.left{text-align:left;margin-left:0;}

    /* ========== 核心产业卡片 ========== */
    .industries-section{padding:100px 0;background:var(--bg-white);}
    .industries-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
    .industry-card{
      border-radius:var(--radius-lg);background:var(--bg);
      border:1px solid var(--border);overflow:hidden;
      box-shadow:var(--shadow-card);
      transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
    }
    .industry-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--border-accent);}
    .industry-card .ic-img{height:180px;overflow:hidden;position:relative;}
    .industry-card .ic-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
    .industry-card:hover .ic-img img{transform:scale(1.06);}
    .industry-card .ic-img::after{
      content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(7,42,38,.35));}
    .industry-card .ic-body{padding:28px 24px 32px;}
    .industry-card .ic-num{
      font-family:var(--font-num);font-size:42px;font-weight:800;color:#D9D4C8;line-height:1;display:block;margin-bottom:14px;
    }
    .industry-card .ic-icon{
      width:46px;height:46px;border-radius:12px;background:rgba(14,79,70,.09);
      display:flex;align-items:center;justify-content:center;color:var(--primary);
      font-size:20px;margin-bottom:18px;transition:transform .3s ease,background .3s ease;
    }
    .industry-card:hover .ic-icon{transform:rotate(-6deg);background:var(--primary);color:#fff;}
    .industry-card h3{font-size:19px;font-weight:700;color:var(--text);margin-bottom:10px;}
    .industry-card p{font-size:14px;color:var(--text-light);line-height:1.75;margin-bottom:16px;}
    .industry-card .ic-tags{display:flex;flex-wrap:wrap;gap:8px;}
    .industry-card .tag{
      display:inline-flex;align-items:center;padding:4px 12px;font-size:12px;font-weight:500;
      color:var(--text-light);background:rgba(14,79,70,.05);border-radius:50px;border:1px solid var(--border);
    }

    /* ========== 布局逻辑（左右长文） ========== */
    .strategy-section{padding:100px 0;background:var(--bg);}
    .strategy-wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
    .strategy-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-hover);position:relative;}
    .strategy-media img{width:100%;height:100%;object-fit:cover;min-height:420px;}
    .strategy-media .media-badge{
      position:absolute;left:24px;bottom:24px;background:rgba(7,42,38,.85);color:#fff;
      padding:10px 20px;border-radius:var(--radius-md);font-size:14px;font-weight:600;
      border-left:3px solid var(--accent);backdrop-filter:blur(8px);
    }
    .strategy-content .sec-tag{display:inline-block;font-size:13px;font-weight:600;color:var(--primary);letter-spacing:0.12em;margin-bottom:16px;}
    .strategy-content h2{font-size:clamp(26px,3vw,38px);font-weight:800;color:var(--text);margin-bottom:18px;line-height:1.25;}
    .strategy-content h2 .gold{color:var(--accent);position:relative;}
    .strategy-content p{font-size:16px;color:var(--text-light);line-height:1.9;margin-bottom:20px;}
    .strategy-points{margin-top:28px;display:flex;flex-direction:column;gap:18px;}
    .strategy-point{display:flex;gap:16px;align-items:flex-start;}
    .strategy-point .sp-icon{
      width:40px;height:40px;border-radius:50%;background:rgba(196,160,82,.14);color:var(--accent);
      display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0;
    }
    .strategy-point h4{font-size:16px;font-weight:700;color:var(--text);margin-bottom:4px;}
    .strategy-point p{font-size:14px;color:var(--text-light);margin:0;line-height:1.7;}

    /* ========== 协同机制时间线 ========== */
    .timeline-section{
      padding:100px 0;
      background:linear-gradient(rgba(7,42,38,.78),rgba(7,42,38,.82)),url('/assets/images/backpic/back-2.png') center center/cover no-repeat;
      color:#fff;
    }
    .timeline-section .section-head h2{color:#fff;}
    .timeline-section .section-head .sec-desc{color:rgba(255,255,255,.8);}
    .timeline-section .section-head .sec-tag{border-color:var(--accent);color:var(--accent-light);background:rgba(196,160,82,.1);}
    .timeline-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:48px;position:relative;}
    .timeline-grid::before{
      content:"";position:absolute;top:24px;left:12.5%;right:12.5%;height:2px;
      background:linear-gradient(90deg,var(--accent),rgba(255,255,255,.2),var(--accent));
    }
    .timeline-item{position:relative;text-align:center;padding-top:64px;}
    .timeline-item .tl-dot{
      position:absolute;top:12px;left:50%;transform:translateX(-50%);
      width:24px;height:24px;border-radius:50%;background:var(--accent);
      border:4px solid rgba(255,255,255,.35);box-shadow:0 0 0 4px rgba(196,160,82,.3);
    }
    .timeline-item .tl-num{
      font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--accent-light);
      letter-spacing:0.1em;display:block;margin-bottom:10px;
    }
    .timeline-item h4{font-size:18px;font-weight:700;color:#fff;margin-bottom:10px;}
    .timeline-item p{font-size:14px;color:rgba(255,255,255,.75);line-height:1.7;margin:0;}

    /* ========== FAQ ========== */
    .faq-section{padding:100px 0;background:var(--bg);}
    .faq-wrap{max-width:860px;margin:0 auto;}
    .accordion-item{
      background:transparent;border:none;border-top:1px solid var(--border);
      border-radius:0 !important;
    }
    .accordion-item:last-child{border-bottom:1px solid var(--border);}
    .accordion-button{
      background:transparent;box-shadow:none;font-size:18px;font-weight:700;color:var(--text);
      padding:20px 48px 20px 0;border-radius:0 !important;
      position:relative;line-height:1.5;
    }
    .accordion-button::after{
      background:none;font-family:"bootstrap-icons";content:"\F282";
      width:24px;height:24px;font-size:18px;color:var(--primary);
      position:absolute;right:0;top:50%;transform:translateY(-50%);
      transition:transform .3s ease;
    }
    .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);}
    .accordion-button:not(.collapsed){color:var(--primary);background:transparent;}
    .accordion-button:focus{box-shadow:none;border-color:var(--border);}
    .accordion-body{
      padding:0 48px 24px 0;font-size:15px;color:var(--text-light);line-height:1.8;
    }
    .accordion-button[aria-expanded="true"]{
      border-left:3px solid var(--accent);background:rgba(255,255,255,.6);
      padding-left:16px;
    }

    /* ========== CTA ========== */
    .cta-section{padding:90px 0;background:var(--bg-deep);position:relative;overflow:hidden;}
    .cta-section::before{
      content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
      width:64px;height:2px;background:var(--accent);
    }
    .cta-wrap{text-align:center;max-width:760px;margin:0 auto;position:relative;z-index:1;}
    .cta-wrap h2{font-size:clamp(26px,3.5vw,40px);font-weight:800;color:#fff;margin-bottom:16px;}
    .cta-wrap p{font-size:16px;color:rgba(255,255,255,.8);line-height:1.8;margin-bottom:36px;}
    .cta-btns{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;}
    .cta-note{font-size:13px;color:rgba(255,255,255,.55);margin-top:20px;letter-spacing:0.03em;}

    /* ========== 页脚 ========== */
    .site-footer{background:var(--bg-deep);color:rgba(255,255,255,.7);padding:72px 0 0;font-size:14px;}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:48px;padding-bottom:48px;}
    .footer-brand .brand-main{color:#fff;font-size:22px;font-weight:800;display:block;letter-spacing:0.01em;}
    .footer-brand .brand-sub{font-size:10px;color:rgba(255,255,255,.5);letter-spacing:0.32em;text-transform:uppercase;font-family:var(--font-num);margin-top:4px;display:block;}
    .footer-intro{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8;margin:18px 0 22px;max-width:320px;}
    .social-icons{display:flex;gap:12px;}
    .social-icons a{
      width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);
      display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.8);font-size:16px;
      transition:background .3s ease,color .3s ease,transform .3s ease;
    }
    .social-icons a:hover{background:var(--accent);color:#fff;transform:translateY(-3px);}
    .footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:0.04em;position:relative;padding-bottom:10px;}
    .footer-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--accent);}
    .footer-links{display:flex;flex-direction:column;gap:10px;}
    .footer-links a{color:rgba(255,255,255,.65);font-size:14px;transition:color .25s ease,padding-left .25s ease;}
    .footer-links a i{font-size:12px;color:var(--accent);margin-right:4px;}
    .footer-links a:hover{color:var(--accent-light);padding-left:4px;}
    .footer-contact li{display:flex;gap:10px;margin-bottom:12px;color:rgba(255,255,255,.65);font-size:14px;line-height:1.6;}
    .footer-contact li i{color:var(--accent);margin-top:3px;font-size:14px;}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
      display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
      font-size:13px;color:rgba(255,255,255,.5);
    }
    .footer-bottom a{color:rgba(255,255,255,.7);}
    .footer-bottom a:hover{color:var(--accent-light);}

    /* ========== 浮动咨询按钮 ========== */
    .float-consult{
      position:fixed;right:24px;bottom:24px;z-index:1040;
      display:flex;align-items:center;gap:10px;
      background:var(--accent);color:#13201D;font-weight:700;font-size:14px;
      padding:13px 22px;border-radius:50px;box-shadow:0 8px 28px rgba(196,160,82,.35);
      transition:transform .3s ease,box-shadow .3s ease;border:none;cursor:pointer;
    }
    .float-consult:hover{transform:translateY(-3px);box-shadow:0 12px 36px rgba(196,160,82,.45);}
    .float-consult .pulse-dot{
      width:8px;height:8px;border-radius:50%;background:#1B2322;position:relative;
    }
    .float-consult .pulse-dot::before{
      content:"";position:absolute;inset:-4px;border-radius:50%;
      border:2px solid rgba(27,35,34,.5);animation:pulse 2s ease-out infinite;
    }
    @keyframes pulse{0%{transform:scale(.8);opacity:1;}100%{transform:scale(1.6);opacity:0;}}

    /* ========== 弹窗 ========== */
    .modal-content{border:none;border-radius:var(--radius-lg);overflow:hidden;}
    .modal-header{background:var(--primary);color:#fff;border:none;padding:20px 24px;}
    .modal-header .modal-title{font-size:20px;font-weight:700;}
    .modal-header .btn-close{filter:brightness(0) invert(1);opacity:.8;}
    .modal-header .btn-close:hover{opacity:1;}
    .modal-body{padding:32px;}
    .form-label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px;}
    .form-control, .form-select{
      height:48px;border-radius:var(--radius-md);border:1.5px solid var(--border);
      padding:12px 16px;font-size:15px;color:var(--text);background:var(--bg-white);
      transition:border-color .25s ease,box-shadow .25s ease;
    }
    .form-control:focus, .form-select:focus{
      border-color:var(--accent);box-shadow:0 0 0 3px rgba(196,160,82,.15);outline:none;
    }
    textarea.form-control{height:auto;resize:vertical;}
    .form-check-input{
      width:16px;height:16px;border-radius:4px;border:1.5px solid var(--border-accent);margin-top:3px;
    }
    .form-check-input:checked{background-color:var(--primary);border-color:var(--primary);}
    .form-check-input:focus{box-shadow:none;border-color:var(--primary);}
    .privacy-note{font-size:13px;color:var(--text-mute);line-height:1.6;}

    /* ========== 响应式 ========== */
    @media (max-width:1199.98px){
      .industries-grid{grid-template-columns:repeat(4,1fr);gap:16px;}
      .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:36px;}
      .footer-brand{grid-column:span 3;}
    }
    @media (max-width:991.98px){
      .site-header{height:64px;}
      .header-inner{height:64px;}
      .nav-toggle{display:flex;}
      .main-nav{
        position:fixed;top:64px;left:0;right:0;bottom:0;z-index:1040;
        background:var(--bg);flex-direction:column;align-items:flex-start;justify-content:flex-start;
        padding:32px 24px;gap:8px;transform:translateX(100%);
        transition:transform .35s ease;overflow-y:auto;
        border-top:1px solid var(--border);
      }
      .main-nav.open{transform:translateX(0);}
      .main-nav ul{flex-direction:column;width:100%;gap:4px;}
      .main-nav ul li{width:100%;}
      .main-nav ul li a{padding:14px 16px;font-size:17px;border-radius:var(--radius-sm);}
      .main-nav ul li a.active{background:rgba(14,79,70,.06);}
      .main-nav ul li a.active::after{display:none;}
      .nav-cta{margin:16px 0 0;width:100%;justify-content:center;padding:14px 24px;font-size:16px;}
      .industries-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
      .timeline-grid{grid-template-columns:repeat(2,1fr);gap:40px 24px;}
      .timeline-grid::before{display:none;}
      .strategy-wrap{grid-template-columns:1fr;gap:40px;}
      .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
      .stat-item + .stat-item::before{display:none;}
      .stat-item:nth-child(3)::before{display:none;}
      .page-hero{padding:150px 0 70px;}
    }
    @media (max-width:767.98px){
      .container{padding-left:16px;padding-right:16px;}
      .page-hero h1{font-size:clamp(26px,7vw,34px);}
      .industries-grid{grid-template-columns:1fr;}
      .timeline-grid{grid-template-columns:1fr;gap:32px;}
      .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
      .cta-btns{flex-direction:column;}
      .cta-btns .btn{width:100%;}
      .footer-grid{grid-template-columns:1fr;gap:32px;}
      .footer-brand{grid-column:span 1;}
      .footer-bottom{flex-direction:column;text-align:center;}
      .float-consult{bottom:16px;right:16px;padding:11px 18px;}
      .accordion-button{font-size:16px;padding:18px 40px 18px 0;}
      .accordion-body{padding:0 24px 20px 0;}
      .strategy-point{gap:12px;}
    }

/* roulang page: article */
:root {
    --primary: #0E4F46;
    --primary-dark: #093A33;
    --accent: #C4A052;
    --accent-light: #D8B96A;
    --bg: #F6F4EE;
    --bg-white: #FFFFFF;
    --bg-deep: #072A26;
    --text: #1B2322;
    --text-light: #5B6B68;
    --text-mute: #8A9693;
    --border: #E5E0D5;
    --border-accent: #C4A052;
    --success: #2E7D5C;
    --warning: #B45309;
    --radius-lg: 24px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-card: 0 2px 8px rgba(14, 79, 70, .06);
    --shadow-hover: 0 12px 36px rgba(14, 79, 70, .12);
    --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-num: "Roboto Mono", "SF Mono", monospace;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); color: var(--text); background: var(--bg); font-size: 16px; line-height: 1.8; letter-spacing: .02em; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: all .25s ease; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; }
.container { max-width: 1280px; padding-left: 24px; padding-right: 24px; }
@media (max-width: 767px) {
    .container { padding-left: 16px; padding-right: 16px; }
}

.btn { border-radius: var(--radius-md); padding: 12px 28px; font-weight: 600; transition: all .25s ease; }
.btn-gold { background: var(--accent); color: var(--text); border: 1px solid var(--accent); }
.btn-gold:hover { background: var(--accent-light); border-color: var(--accent-light); color: var(--text); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(196, 160, 82, .28); }
.btn-gold:active { transform: translateY(0); }
.btn-brand { background: var(--primary); color: #fff; border: 1px solid var(--primary); }
.btn-brand:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(14, 79, 70, .2); }
.btn-brand:active { transform: translateY(0); }
.btn-outline-brand { background: transparent; border: 1.5px solid var(--primary); color: var(--primary); }
.btn-outline-brand:hover { background: rgba(14, 79, 70, .06); border-color: var(--primary-dark); color: var(--primary-dark); transform: translateY(-2px); }
.btn-lg { padding: 14px 36px; font-size: 16px; }
.btn:focus-visible { outline: 3px solid rgba(196, 160, 82, .35); outline-offset: 2px; }

.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: 80px; background: rgba(7, 42, 38, .2); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid rgba(255, 255, 255, .08); transition: all .3s ease; }
.site-header.scrolled { background: rgba(246, 244, 238, .92); border-bottom: 1px solid var(--border); box-shadow: 0 4px 20px rgba(14, 79, 70, .06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; gap: 24px; }
.brand-logo { display: flex; flex-direction: column; line-height: 1.15; flex-shrink: 0; }
.brand-main { font-size: 24px; font-weight: 800; color: #fff; letter-spacing: -.01em; transition: color .3s ease; }
.brand-sub { font-size: 10px; color: rgba(255, 255, 255, .55); letter-spacing: .18em; text-transform: uppercase; transition: color .3s ease; }
.site-header.scrolled .brand-main { color: var(--primary); }
.site-header.scrolled .brand-sub { color: var(--text-mute); }
.main-nav ul { display: flex; gap: 32px; align-items: center; }
.main-nav a { font-size: 15px; font-weight: 500; color: rgba(255, 255, 255, .85); padding: 8px 2px; position: relative; }
.main-nav a:hover { color: #fff; }
.main-nav a.active { color: #fff; }
.main-nav a.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--accent); border-radius: 2px; }
.site-header.scrolled .main-nav a { color: var(--text); }
.site-header.scrolled .main-nav a:hover { color: var(--primary); }
.site-header.scrolled .main-nav a.active { color: var(--primary); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-badge { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 14px; border: 1px solid rgba(196, 160, 82, .6); border-radius: 999px; background: rgba(255, 255, 255, .12); color: var(--accent-light); font-size: 13px; font-weight: 500; white-space: nowrap; }
.site-header.scrolled .header-badge { background: rgba(255, 255, 255, .7); color: var(--primary); border-color: rgba(196, 160, 82, .5); }
.header-cta { padding: 10px 22px; font-size: 14px; white-space: nowrap; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 12px; align-items: center; justify-content: center; background: rgba(255, 255, 255, .1); color: #fff; font-size: 22px; transition: all .3s ease; }
.site-header.scrolled .nav-toggle { color: var(--primary); background: rgba(14, 79, 70, .06); }
.nav-toggle:focus-visible { outline: 3px solid rgba(196, 160, 82, .4); outline-offset: 2px; }

.article-hero { position: relative; padding: 168px 0 80px; background: var(--bg-deep); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; transform: scale(1.05); animation: heroZoom 10s ease-out forwards; }
@keyframes heroZoom { 0% { transform: scale(1.05); } 100% { transform: scale(1.1); } }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(105deg, rgba(7, 42, 38, .9) 0%, rgba(7, 42, 38, .68) 55%, rgba(7, 42, 38, .38) 100%); }
.hero-content { position: relative; z-index: 2; color: #fff; max-width: 980px; }
.breadcrumb-line { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 14px; color: rgba(255, 255, 255, .68); margin-bottom: 24px; }
.breadcrumb-line a { color: var(--accent); }
.breadcrumb-line a:hover { color: var(--accent-light); }
.breadcrumb-line .bi { font-size: 11px; color: rgba(255, 255, 255, .45); }
.breadcrumb-line .current { color: rgba(255, 255, 255, .85); max-width: 420px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hero-content h1 { font-size: clamp(28px, 4vw, 48px); font-weight: 800; line-height: 1.22; margin-bottom: 20px; letter-spacing: -.01em; max-width: 900px; animation: fadeUp .7s ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.article-meta { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; color: rgba(255, 255, 255, .74); animation: fadeUp .7s ease .1s both; }
.article-meta i { color: var(--accent); margin-right: 6px; }

.article-main { padding-top: 56px; padding-bottom: 80px; }
.article-card { background: var(--bg-white); border-radius: var(--radius-lg); box-shadow: var(--shadow-card); padding: clamp(28px, 5vw, 64px); max-width: 860px; margin: 0 auto; }
.article-content { font-size: 16px; line-height: 1.9; color: var(--text); word-break: break-word; }
.article-content h2 { font-size: 26px; font-weight: 700; margin: 42px 0 18px; padding-bottom: 12px; border-bottom: 1px solid var(--border); letter-spacing: -.01em; }
.article-content h3 { font-size: 21px; font-weight: 700; margin: 34px 0 14px; letter-spacing: -.01em; }
.article-content p { margin-bottom: 24px; }
.article-content blockquote { border-left: 3px solid var(--accent); background: var(--bg); padding: 16px 24px; border-radius: 0 14px 14px 0; margin: 28px 0; color: var(--text-light); font-style: normal; }
.article-content blockquote p:last-child { margin-bottom: 0; }
.article-content img { border-radius: 16px; margin: 28px 0; width: 100%; box-shadow: var(--shadow-card); }
.article-content ul, .article-content ol { margin: 16px 0 24px; padding-left: 24px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 8px; }
.article-content a { color: var(--primary); border-bottom: 1px solid rgba(14, 79, 70, .25); }
.article-content a:hover { color: var(--primary-dark); border-bottom-color: var(--primary-dark); }
.article-content table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: 15px; }
.article-content th, .article-content td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.article-content th { background: var(--bg); font-weight: 600; }
.article-content code { background: var(--bg); border-radius: 6px; padding: 2px 8px; font-size: .9em; font-family: var(--font-num); }
.article-content pre { background: var(--bg-deep); color: #fff; border-radius: 14px; padding: 22px 26px; overflow-x: auto; margin: 28px 0; font-family: var(--font-num); font-size: 14px; line-height: 1.7; }
.article-content pre code { background: none; padding: 0; color: inherit; }

.article-footer-nav { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); }
.article-footer-nav .btn { display: inline-flex; align-items: center; gap: 8px; }

.article-empty { max-width: 780px; margin: 0 auto; background: var(--bg-white); border: 1.5px dashed var(--border); border-radius: var(--radius-lg); padding: 70px 30px; text-align: center; color: var(--text-mute); }
.article-empty i { font-size: 52px; color: var(--accent); margin-bottom: 18px; }
.article-empty h2 { font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 12px; }
.article-empty p { margin-bottom: 24px; }

.related-section { padding: 80px 0; border-top: 1px solid var(--border); background: var(--bg); }
.related-head { text-align: center; margin-bottom: 48px; }
.related-head .section-tag { display: inline-block; font-size: 13px; letter-spacing: .12em; color: var(--accent); background: rgba(196, 160, 82, .1); border-radius: 999px; padding: 5px 16px; margin-bottom: 14px; font-weight: 500; }
.related-head h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 800; letter-spacing: -.01em; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); transition: all .3s ease; border: 1px solid transparent; }
.related-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-6px); border-color: rgba(196, 160, 82, .25); }
.related-card .thumb { position: relative; overflow: hidden; }
.related-card .thumb img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .4s ease; }
.related-card:hover .thumb img { transform: scale(1.05); }
.related-card-body { padding: 20px 24px 26px; }
.related-card-body .card-link { font-size: 13px; color: var(--accent); font-weight: 600; }
.related-card-body h3 { font-size: 18px; font-weight: 700; line-height: 1.45; margin-bottom: 10px; }
.related-card-body h3 a { color: var(--text); }
.related-card-body h3 a:hover { color: var(--primary); }
.related-card-body .date { font-size: 13px; color: var(--text-mute); display: flex; align-items: center; gap: 6px; }

.cta-section { padding: 72px 0; background: var(--bg); }
.cta-box { background: var(--bg-deep); border-radius: var(--radius-lg); padding: clamp(36px, 5vw, 64px); display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; color: #fff; position: relative; overflow: hidden; }
.cta-box::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 64px; height: 2px; background: var(--accent); }
.cta-box::after { content: ''; position: absolute; right: -40px; bottom: -40px; width: 180px; height: 180px; border-radius: 50%; border: 1px solid rgba(196, 160, 82, .18); }
.cta-box h2 { color: #fff; font-size: clamp(22px, 3vw, 32px); font-weight: 700; margin-bottom: 10px; letter-spacing: -.01em; }
.cta-box p { color: rgba(255, 255, 255, .7); font-size: 15px; max-width: 560px; }
.cta-box .btn { position: relative; z-index: 2; }

.site-footer { background: var(--bg-deep); color: rgba(255, 255, 255, .72); padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.footer-brand .brand-main { color: #fff; font-size: 26px; font-weight: 800; }
.footer-brand .brand-sub { color: rgba(255, 255, 255, .45); }
.footer-intro { margin: 16px 0 22px; font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .65); }
.social-icons { display: flex; gap: 12px; }
.social-icons a { width: 38px; height: 38px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .22); display: flex; align-items: center; justify-content: center; color: rgba(255, 255, 255, .75); font-size: 15px; transition: all .3s ease; }
.social-icons a:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }
.footer-title { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 22px; letter-spacing: .06em; text-transform: uppercase; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { color: rgba(255, 255, 255, .62); font-size: 14px; }
.footer-links a i { font-size: 10px; color: var(--accent); margin-right: 4px; }
.footer-links a:hover { color: var(--accent); padding-left: 5px; }
.footer-contact { display: flex; flex-direction: column; gap: 12px; font-size: 14px; color: rgba(255, 255, 255, .62); list-style: none; }
.footer-contact i { color: var(--accent); margin-right: 8px; width: 18px; }
.footer-bottom { padding: 22px 0; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 13px; color: rgba(255, 255, 255, .42); }
.footer-bottom a { color: rgba(255, 255, 255, .55); }
.footer-bottom a:hover { color: var(--accent); }

.float-consult { position: fixed; right: 24px; bottom: 24px; z-index: 990; background: var(--accent); color: var(--text); border-radius: 999px; padding: 13px 24px; font-weight: 600; font-size: 15px; display: flex; align-items: center; gap: 10px; box-shadow: 0 10px 28px rgba(196, 160, 82, .35); transition: all .3s ease; }
.float-consult:hover { background: var(--accent-light); transform: translateY(-3px); color: var(--text); }
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); animation: pulse 1.6s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(14, 79, 70, .4); } 70% { box-shadow: 0 0 0 10px rgba(14, 79, 70, 0); } 100% { box-shadow: 0 0 0 0 rgba(14, 79, 70, 0); } }

.modal-content { border: none; border-radius: var(--radius-lg); overflow: hidden; }
.modal-header { background: var(--primary); color: #fff; border-bottom: none; padding: 18px 24px; }
.modal-header .btn-close { filter: invert(1); opacity: .8; }
.modal-body { padding: 28px; background: var(--bg-white); }
.modal-body .form-label { font-size: 14px; font-weight: 600; color: var(--text); }
.form-control, .form-select { border-radius: var(--radius-md); border-color: var(--border); height: 48px; font-size: 15px; transition: all .25s ease; }
.form-control:focus, .form-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(196, 160, 82, .18); }
textarea.form-control { height: auto; padding-top: 12px; }
.form-check-input:checked { background-color: var(--primary); border-color: var(--primary); }
.form-check-input:focus { box-shadow: 0 0 0 3px rgba(14, 79, 70, .15); border-color: var(--primary); }

@media (max-width: 1199px) {
    .main-nav ul { gap: 22px; }
    .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
}
@media (max-width: 991px) {
    .header-inner { height: 64px; }
    .site-header { height: 64px; }
    .header-badge { display: none; }
    .nav-toggle { display: flex; }
    .main-nav { position: fixed; top: 64px; left: 0; right: 0; background: rgba(255, 255, 255, .98); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-hover); padding: 16px 24px 24px; transform: translateY(-120%); transition: transform .32s ease; z-index: 999; }
    .main-nav.open { transform: translateY(0); }
    .main-nav ul { flex-direction: column; gap: 4px; align-items: stretch; }
    .main-nav a { display: block; padding: 13px 10px; font-size: 16px; color: var(--text); border-radius: 10px; }
    .main-nav a:hover { color: var(--primary); background: rgba(14, 79, 70, .04); }
    .main-nav a.active { color: var(--primary); background: rgba(14, 79, 70, .06); }
    .main-nav a.active::after { display: none; }
    .article-hero { padding: 130px 0 56px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767px) {
    .header-cta { display: none; }
    .header-inner { gap: 12px; }
    .article-hero { padding: 116px 0 48px; }
    .hero-content h1 { font-size: 26px; }
    .article-meta { gap: 12px; font-size: 13px; }
    .article-main { padding-top: 32px; padding-bottom: 48px; }
    .article-card { padding: 22px 18px; border-radius: 18px; }
    .article-content h2 { font-size: 22px; }
    .article-content h3 { font-size: 19px; }
    .article-footer-nav { flex-direction: column; }
    .article-footer-nav .btn { width: 100%; justify-content: center; }
    .related-section { padding: 52px 0; }
    .related-grid { grid-template-columns: 1fr; }
    .cta-section { padding: 48px 0; }
    .cta-box { flex-direction: column; text-align: center; justify-content: center; }
    .footer-grid { grid-template-columns: 1fr; gap: 36px; }
    .float-consult { right: 14px; bottom: 14px; padding: 11px 18px; font-size: 14px; }
}

/* roulang page: category2 */
:root{
  --primary:#0E4F46;
  --primary-dark:#093A33;
  --accent:#C4A052;
  --accent-light:#D8B96A;
  --bg:#F6F4EE;
  --bg-white:#FFFFFF;
  --bg-deep:#072A26;
  --text:#1B2322;
  --text-light:#5B6B68;
  --text-mute:#8A9693;
  --border:#E5E0D5;
  --border-accent:#C4A052;
  --success:#2E7D5C;
  --warning:#B45309;
  --radius-lg:24px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow-card:0 2px 8px rgba(14,79,70,.06);
  --shadow-hover:0 12px 36px rgba(14,79,70,.12);
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"Roboto Mono","SF Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.02em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .25s ease}
ul,ol{list-style:none}
input,button,textarea,select{font-family:inherit}
.container{max-width:1280px;padding-left:24px;padding-right:24px;margin:0 auto}
@media(max-width:767px){
  .container{padding-left:16px;padding-right:16px}
}
h1,h2,h3,h4,h5,h6{letter-spacing:-.01em;line-height:1.35}
.display-title{font-size:clamp(36px,5.5vw,64px);font-weight:800;line-height:1.15}
.h1-size{font-size:clamp(28px,4vw,48px);font-weight:800;line-height:1.2}
.h2-size{font-size:clamp(24px,3vw,38px);font-weight:700;line-height:1.25}
.h3-size{font-size:clamp(19px,1.8vw,26px);font-weight:700;line-height:1.3}
.section{padding:100px 0}
@media(max-width:767px){
  .section{padding:60px 0}
}
.section-head{margin-bottom:48px}
.section-head .section-tag{
  display:inline-block;
  font-size:13px;
  font-weight:500;
  letter-spacing:.08em;
  color:var(--primary);
  background:rgba(14,79,70,.08);
  padding:6px 16px;
  border-radius:100px;
  margin-bottom:16px;
}
.section-head h2{color:var(--text)}
.section-head p{color:var(--text-light);font-size:16px;max-width:680px;margin-top:12px}
/* 顶部导航 */
.main-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  height:80px;
  background:rgba(246,244,238,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  transition:height .3s ease,background .3s ease,box-shadow .3s ease;
}
.main-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:100%;
}
.brand-logo{
  display:flex;
  flex-direction:column;
  line-height:1.1;
}
.brand-logo .brand-main{
  font-size:24px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:.01em;
}
.brand-logo .brand-sub{
  font-size:10px;
  font-weight:500;
  letter-spacing:.35em;
  color:var(--text-mute);
  text-transform:uppercase;
  margin-top:2px;
}
.main-nav ul{display:flex;align-items:center;gap:6px;margin:0;padding:0}
.main-nav ul li a{
  display:block;
  padding:10px 18px;
  font-size:15px;
  font-weight:500;
  color:var(--text-light);
  border-radius:8px;
  transition:color .25s ease,background .25s ease;
  position:relative;
}
.main-nav ul li a:hover{color:var(--primary)}
.main-nav ul li a.active{color:var(--primary);font-weight:700}
.main-nav ul li a.active::after{
  content:"";
  position:absolute;
  left:18px;right:18px;bottom:2px;
  height:2px;
  background:var(--accent);
  border-radius:2px;
}
.header-cta{display:flex;align-items:center;gap:16px}
.nav-status{
  font-size:13px;
  font-weight:500;
  color:var(--primary);
  border:1px solid var(--border-accent);
  background:var(--bg-white);
  padding:6px 16px;
  border-radius:100px;
  white-space:nowrap;
}
.btn-accent{
  background:var(--accent);
  color:var(--bg-deep);
  font-weight:700;
  font-size:15px;
  padding:12px 28px;
  border-radius:var(--radius-md);
  border:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  transition:background .25s ease,transform .25s ease,box-shadow .25s ease;
  cursor:pointer;
}
.btn-accent:hover{
  background:var(--accent-light);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(196,160,82,.25);
  color:var(--bg-deep);
}
.btn-accent:active{transform:translateY(0)}
.btn-primary-custom{
  background:var(--primary);
  color:#fff;
  font-weight:600;
  font-size:15px;
  padding:12px 28px;
  border-radius:var(--radius-md);
  border:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  transition:background .25s ease,transform .25s ease,box-shadow .25s ease;
  cursor:pointer;
}
.btn-primary-custom:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(14,79,70,.2);
}
.btn-outline-custom{
  background:transparent;
  color:var(--primary);
  font-weight:600;
  font-size:15px;
  padding:12px 28px;
  border-radius:var(--radius-md);
  border:1.5px solid var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  transition:all .25s ease;
  cursor:pointer;
}
.btn-outline-custom:hover{
  background:rgba(14,79,70,.06);
  color:var(--primary);
}
.navbar-toggler-custom{
  display:none;
  background:none;
  border:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  font-size:26px;
  color:var(--primary);
  cursor:pointer;
}
.mobile-menu{
  display:none;
  position:fixed;
  top:80px;left:0;right:0;bottom:0;
  background:rgba(246,244,238,.98);
  z-index:999;
  padding:32px 24px;
  flex-direction:column;
  gap:12px;
  overflow-y:auto;
  border-top:1px solid var(--border);
}
.mobile-menu.open{display:flex}
.mobile-menu a{
  display:block;
  padding:14px 20px;
  font-size:16px;
  font-weight:500;
  color:var(--text);
  border-radius:12px;
  background:var(--bg-white);
  border:1px solid var(--border);
}
.mobile-menu a:active,.mobile-menu a.active{color:var(--primary);border-color:var(--border-accent);font-weight:700}
@media(max-width:991px){
  .main-nav,.header-cta .nav-status,.header-cta .btn-accent{display:none}
  .navbar-toggler-custom{display:flex}
  .main-header{height:64px}
  .mobile-menu{top:64px}
  .brand-logo .brand-main{font-size:21px}
}
/* Hero */
.page-hero{
  position:relative;
  padding:170px 0 100px;
  background:linear-gradient(100deg,rgba(7,42,38,.85) 20%,rgba(7,42,38,.55) 60%,rgba(7,42,38,.35) 100%),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
@media(max-width:767px){
  .page-hero{padding:130px 0 60px;text-align:center;background:linear-gradient(180deg,rgba(7,42,38,.88) 0%,rgba(7,42,38,.65) 100%),url('/assets/images/backpic/back-2.png') center/cover no-repeat}
}
.page-hero .hero-inner{max-width:820px}
.page-hero .hero-tag{
  display:inline-block;
  font-size:13px;
  font-weight:500;
  letter-spacing:.08em;
  color:var(--accent-light);
  border:1px solid rgba(196,160,82,.55);
  border-radius:100px;
  padding:6px 18px;
  margin-bottom:20px;
  background:rgba(196,160,82,.1);
}
.page-hero h1{
  font-size:clamp(28px,4vw,48px);
  font-weight:800;
  line-height:1.2;
  margin-bottom:16px;
  color:#fff;
}
.page-hero h1 span{color:var(--accent-light)}
.page-hero p.lead{
  font-size:clamp(16px,1.5vw,19px);
  line-height:1.8;
  color:rgba(246,244,238,.9);
  max-width:720px;
  margin-bottom:28px;
}
.hero-trust{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  font-size:14px;
  color:rgba(246,244,238,.8);
  margin-top:24px;
}
.hero-trust span::before{
  content:"";
  display:inline-block;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent);
  margin-right:8px;
  vertical-align:middle;
}
/* 服务板块 */
.service-overview{padding:100px 0;background:var(--bg)}
.service-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px;
  margin-top:48px;
}
@media(max-width:991px){
  .service-grid{grid-template-columns:1fr}
}
.service-card{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  padding:40px;
  box-shadow:var(--shadow-card);
  border-top:3px solid transparent;
  transition:box-shadow .3s ease,transform .3s ease;
  position:relative;
  overflow:hidden;
}
.service-card::before{
  content:"";
  position:absolute;
  top:0;left:0;width:100%;height:3px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .4s ease;
}
.service-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.service-card:hover::before{transform:scaleX(1)}
.service-card .service-icon{
  width:64px;height:64px;
  border-radius:16px;
  background:rgba(14,79,70,.08);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:28px;
  color:var(--primary);
  margin-bottom:24px;
}
.service-card h3{font-size:clamp(19px,1.6vw,24px);font-weight:700;margin-bottom:12px;color:var(--text)}
.service-card p{color:var(--text-light);font-size:15px;line-height:1.8;margin-bottom:20px}
.service-card .service-tags{display:flex;flex-wrap:wrap;gap:8px}
.service-card .service-tags span{
  font-size:12px;
  color:var(--text-mute);
  background:var(--bg);
  padding:4px 14px;
  border-radius:100px;
  font-weight:500;
}
/* 时间线流程 */
.process-section{
  background:var(--bg-deep);
  color:#fff;
  padding:100px 0;
  position:relative;
}
.process-section::before{
  content:"";
  position:absolute;
  top:0;left:50%;transform:translateX(-50%);
  width:40px;height:2px;
  background:var(--accent);
}
.process-section .section-tag{
  display:inline-block;
  font-size:13px;
  font-weight:500;
  letter-spacing:.08em;
  color:var(--accent-light);
  border:1px solid rgba(196,160,82,.5);
  border-radius:100px;
  padding:6px 16px;
  margin-bottom:16px;
  background:rgba(196,160,82,.08);
}
.process-section h2{color:#fff}
.process-section .section-head p{color:rgba(246,244,238,.75)}
.process-timeline{
  display:flex;
  gap:0;
  margin-top:56px;
  position:relative;
}
@media(max-width:991px){
  .process-timeline{flex-direction:column;gap:32px}
}
.process-step{
  flex:1;
  padding:0 32px;
  position:relative;
  text-align:center;
}
.process-step:first-child{padding-left:0}
.process-step:last-child{padding-right:0}
.process-step::before{
  content:"";
  position:absolute;
  top:52px;left:50%;
  transform:translateX(-50%);
  width:100%;
  height:1px;
  background:linear-gradient(to right,var(--accent) 50%,rgba(196,160,82,.25) 50%);
  z-index:0;
}
.process-step:first-child::before{
  left:50%;width:50%;
  background:linear-gradient(to right,transparent 0%,rgba(196,160,82,.35) 100%);
}
.process-step:last-child::before{
  left:auto;right:50%;width:50%;
  background:linear-gradient(to left,transparent 0%,rgba(196,160,82,.35) 100%);
}
@media(max-width:991px){
  .process-step::before,.process-step:first-child::before,.process-step:last-child::before{display:none}
}
.process-step .step-num{
  width:56px;height:56px;
  border-radius:50%;
  background:var(--accent);
  color:var(--bg-deep);
  font-family:var(--font-mono);
  font-size:22px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 20px;
  position:relative;
  z-index:1;
  box-shadow:0 0 0 6px rgba(196,160,82,.15);
}
.process-step h3{font-size:19px;font-weight:700;color:#fff;margin-bottom:8px}
.process-step p{font-size:14px;line-height:1.7;color:rgba(246,244,238,.7)}
/* 图文结合区 */
.split-section{padding:100px 0;background:var(--bg-white)}
.split-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:64px;
  align-items:center;
}
@media(max-width:991px){
  .split-grid{grid-template-columns:1fr;gap:40px}
}
.split-image{
  border-radius:var(--radius-lg);
  overflow:hidden;
  position:relative;
  box-shadow:var(--shadow-hover);
  min-height:420px;
}
.split-image img{
  width:100%;height:100%;
  object-fit:cover;
  position:absolute;inset:0;
}
.split-content .section-tag{
  display:inline-block;
  font-size:13px;
  font-weight:500;
  letter-spacing:.08em;
  color:var(--primary);
  background:rgba(14,79,70,.08);
  padding:6px 16px;
  border-radius:100px;
  margin-bottom:16px;
}
.split-content h2{color:var(--text);margin-bottom:16px}
.split-content p{color:var(--text-light);margin-bottom:24px}
.feature-list li{
  display:flex;
  gap:14px;
  padding:12px 0;
  border-bottom:1px dashed var(--border);
  align-items:flex-start;
}
.feature-list li:last-child{border-bottom:none}
.feature-list .icon{
  flex-shrink:0;
  width:40px;height:40px;
  border-radius:12px;
  background:rgba(196,160,82,.12);
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  margin-top:2px;
}
.feature-list .text h4{font-size:16px;font-weight:700;color:var(--text);margin-bottom:2px}
.feature-list .text p{font-size:14px;color:var(--text-light);margin:0}
/* 合作模式 */
.coop-section{padding:100px 0;background:var(--bg)}
.coop-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
  margin-top:48px;
}
@media(max-width:991px){
  .coop-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:767px){
  .coop-grid{grid-template-columns:1fr}
}
.coop-card{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  padding:36px;
  box-shadow:var(--shadow-card);
  border:1px solid var(--border);
  transition:box-shadow .3s ease,transform .3s ease,border-color .3s ease;
}
.coop-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:var(--border-accent);
}
.coop-card .num{
  font-family:var(--font-mono);
  font-size:48px;
  font-weight:800;
  color:var(--border);
  line-height:1;
  margin-bottom:16px;
}
.coop-card h3{font-size:19px;font-weight:700;color:var(--text);margin-bottom:10px}
.coop-card p{font-size:14px;color:var(--text-light);margin-bottom:0}
.coop-card .coop-tag{
  display:inline-block;
  font-size:12px;
  color:var(--primary);
  background:rgba(14,79,70,.08);
  padding:3px 12px;
  border-radius:100px;
  margin-bottom:12px;
  font-weight:500;
}
/* FAQ */
.faq-section{padding:100px 0;background:var(--bg-white)}
.faq-list{max-width:860px;margin:48px auto 0}
.faq-item{
  border-bottom:1px solid var(--border);
  position:relative;
  transition:background .3s ease;
}
.faq-item:first-child{border-top:1px solid var(--border)}
.faq-question{
  padding:26px 48px 26px 24px;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:none;
  border:none;
  width:100%;
  text-align:left;
}
.faq-question i{
  font-size:20px;
  color:var(--primary);
  transition:transform .3s ease;
  flex-shrink:0;
}
.faq-item.active .faq-question i{transform:rotate(180deg)}
.faq-item.active{
  background:rgba(255,255,255,.6);
  border-left:3px solid var(--accent);
  padding-left:0;
  margin-left:-3px;
}
.faq-question:hover{color:var(--primary)}
.faq-answer{
  display:none;
  padding:0 48px 26px 24px;
  font-size:15px;
  line-height:1.75;
  color:var(--text-light);
}
.faq-item.active .faq-answer{display:block}
/* CTA */
.cta-section{
  padding:100px 0;
  background:linear-gradient(100deg,rgba(7,42,38,.92) 30%,rgba(7,42,38,.7)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color:#fff;
  position:relative;
}
.cta-section .cta-inner{max-width:760px}
.cta-section h2{font-size:clamp(24px,3vw,38px);color:#fff;margin-bottom:20px}
.cta-section h2 span{color:var(--accent-light)}
.cta-section p{color:rgba(246,244,238,.85);margin-bottom:32px;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px}
@media(max-width:767px){
  .cta-actions .btn-accent,.cta-actions .btn-outline-custom{width:100%}
}
/* 页脚 */
.site-footer{
  background:var(--bg-deep);
  color:rgba(246,244,238,.8);
  padding:80px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr 1fr;
  gap:48px;
  padding-bottom:56px;
}
@media(max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media(max-width:767px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
}
.footer-brand .brand-main{
  font-size:26px;
  font-weight:800;
  color:#fff;
  display:block;
}
.footer-brand .brand-sub{
  font-size:10px;
  letter-spacing:.35em;
  color:rgba(246,244,238,.4);
  margin-top:2px;
  display:block;
}
.footer-intro{
  font-size:14px;
  line-height:1.8;
  color:rgba(246,244,238,.7);
  margin:20px 0 24px;
  max-width:340px;
}
.social-icons{
  display:flex;
  gap:12px;
}
.social-icons a{
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid rgba(246,244,238,.15);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  color:rgba(246,244,238,.7);
  transition:all .25s ease;
}
.social-icons a:hover{
  background:var(--accent);
  border-color:var(--accent);
  color:var(--bg-deep);
}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:22px;
  letter-spacing:.06em;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.footer-links a{
  font-size:14px;
  color:rgba(246,244,238,.6);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:color .25s ease;
}
.footer-links a i{font-size:12px;color:var(--accent)}
.footer-links a:hover{color:var(--accent-light)}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:rgba(246,244,238,.6);
  margin-bottom:14px;
  line-height:1.7;
}
.footer-contact li i{color:var(--accent);font-size:16px;margin-top:3px}
.footer-bottom{
  border-top:1px solid rgba(246,244,238,.1);
  padding:24px 0;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(246,244,238,.45);
}
.footer-bottom a{color:rgba(246,244,238,.45)}
.footer-bottom a:hover{color:var(--accent-light)}
@media(max-width:767px){
  .footer-bottom{justify-content:center;text-align:center}
}
/* 浮动按钮 */
.float-consult{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:999;
}
.float-consult .btn-fab{
  display:flex;
  align-items:center;
  gap:10px;
  background:var(--accent);
  color:var(--bg-deep);
  border:none;
  padding:14px 24px;
  border-radius:100px;
  font-weight:700;
  box-shadow:0 8px 28px rgba(196,160,82,.35);
  transition:background .25s ease,transform .25s ease;
}
.float-consult .btn-fab:hover{background:var(--accent-light);transform:translateY(-2px)}
.fab-dot{
  width:10px;height:10px;
  border-radius:50%;
  background:var(--success);
  position:relative;
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(46,125,92,.5)}
  70%{box-shadow:0 0 0 8px rgba(46,125,92,0)}
  100%{box-shadow:0 0 0 0 rgba(46,125,92,0)}
}
@media(max-width:520px){
  .float-consult{right:16px;bottom:16px}
  .float-consult .btn-fab span{display:none}
  .float-consult .btn-fab{width:56px;height:56px;border-radius:50%;justify-content:center}
}
/* 弹窗表单 */
.consult-modal .modal-content{
  border-radius:var(--radius-lg);
  border:none;
  overflow:hidden;
  box-shadow:var(--shadow-hover);
}
.consult-modal .modal-header{
  background:var(--primary);
  color:#fff;
  border:none;
  padding:24px 32px;
  align-items:center;
}
.consult-modal .modal-title{
  font-size:20px;
  font-weight:700;
  color:#fff;
}
.consult-modal .btn-close{
  filter:invert(1);
  opacity:.8;
}
.consult-modal .modal-body{padding:32px}
.form-label{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:8px;
}
.form-control-custom{
  width:100%;
  height:48px;
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:0 16px;
  font-size:15px;
  color:var(--text);
  background:var(--bg-white);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.form-control-custom:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(196,160,82,.15);
}
textarea.form-control-custom{height:auto;padding:14px 16px;min-height:120px;resize:vertical}
.form-select-custom{
  width:100%;
  height:48px;
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:0 16px;
  font-size:15px;
  color:var(--text);
  background:var(--bg-white);
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%230E4F46' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 16px center;
  cursor:pointer;
}
.form-select-custom:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(196,160,82,.15);
}
.privacy-note{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin-top:20px;
}
.privacy-note input[type="checkbox"]{
  width:18px;height:18px;
  margin-top:3px;
  accent-color:var(--primary);
  flex-shrink:0;
}
.privacy-note label{
  font-size:13px;
  color:var(--text-mute);
  line-height:1.6;
}
.form-submit-btn{
  width:100%;
  height:56px;
  background:var(--accent);
  color:var(--bg-deep);
  border:none;
  border-radius:var(--radius-md);
  font-size:16px;
  font-weight:700;
  margin-top:24px;
  transition:background .25s ease,transform .25s ease,box-shadow .25s ease;
}
.form-submit-btn:hover{
  background:var(--accent-light);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(196,160,82,.25);
}
/* focus 辅助 */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:3px solid rgba(196,160,82,.5);
  outline-offset:2px;
}

/* roulang page: category3 */
:root {
            --primary: #0E4F46;
            --primary-dark: #093A33;
            --accent: #C4A052;
            --accent-light: #D8B96A;
            --bg: #F6F4EE;
            --bg-white: #FFFFFF;
            --bg-deep: #072A26;
            --text: #1B2322;
            --text-light: #5B6B68;
            --text-mute: #8A9693;
            --border: #E5E0D5;
            --border-accent: #C4A052;
            --success: #2E7D5C;
            --warning: #B45309;
            --radius-lg: 24px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-card: 0 2px 8px rgba(14, 79, 70, .06);
            --shadow-hover: 0 12px 36px rgba(14, 79, 70, .12);
            --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-mono: "Roboto Mono", "SF Mono", monospace;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            letter-spacing: .02em;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .25s ease;
        }

        a:hover {
            color: var(--primary-dark);
        }

        ul,
        ol {
            list-style: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-md);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            border: 0;
            cursor: pointer;
            transition: all .25s ease;
            text-decoration: none;
        }

        .btn-accent {
            background: var(--accent);
            color: #1B2322;
            box-shadow: 0 4px 14px rgba(196, 160, 82, .28);
        }

        .btn-accent:hover {
            background: var(--accent-light);
            color: #1B2322;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(196, 160, 82, .36);
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(14, 79, 70, .22);
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(14, 79, 70, .3);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
        }

        .btn-outline-custom:hover {
            background: rgba(14, 79, 70, .06);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }

        .btn:active {
            transform: translateY(0);
        }

        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 3px solid rgba(196, 160, 82, .45);
            outline-offset: 2px;
        }

        .section-padding {
            padding: 100px 0;
        }

        .section-head {
            max-width: 720px;
            margin-bottom: 48px;
        }

        .section-eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .08em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(196, 160, 82, .1);
            border-radius: 100px;
            padding: 6px 16px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: clamp(24px, 3vw, 38px);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -.01em;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: 80px;
            background: transparent;
            transition: background .3s ease, box-shadow .3s ease;
        }

        .site-header.scrolled {
            background: rgba(246, 244, 238, .92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
        }

        .brand {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
            text-decoration: none;
            flex-shrink: 0;
        }

        .brand-main {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: .02em;
        }

        .brand-sub {
            font-size: 10px;
            font-weight: 500;
            letter-spacing: .18em;
            color: var(--text-mute);
            text-transform: uppercase;
            margin-top: 2px;
        }

        .site-header.scrolled .brand-main {
            color: var(--primary);
        }

        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0;
            padding: 0;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-light);
            padding: 6px 2px;
            position: relative;
            white-space: nowrap;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .3s ease;
            border-radius: 2px;
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            transform: scaleX(1);
        }

        .main-nav a:hover {
            color: var(--primary);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 700;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .status-badge {
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            background: #fff;
            border: 1px solid var(--accent);
            border-radius: 100px;
            padding: 5px 14px;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 0;
            font-size: 28px;
            color: var(--primary);
            cursor: pointer;
            line-height: 1;
            padding: 4px;
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 200px 0 100px;
            background: linear-gradient(105deg, rgba(7, 42, 38, .88) 25%, rgba(7, 42, 38, .55) 70%, rgba(7, 42, 38, .35)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            color: #fff;
        }

        .page-hero .hero-content {
            max-width: 760px;
        }

        .hero-badge {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-light);
            border: 1px solid rgba(196, 160, 82, .6);
            background: rgba(196, 160, 82, .08);
            border-radius: 100px;
            padding: 6px 18px;
            margin-bottom: 24px;
            letter-spacing: .04em;
        }

        .page-hero h1 {
            font-size: clamp(30px, 4.2vw, 52px);
            font-weight: 800;
            line-height: 1.18;
            margin-bottom: 20px;
            color: #fff;
            letter-spacing: -.01em;
        }

        .page-hero h1 .brand-inline {
            color: var(--accent-light);
        }

        .hero-lead {
            font-size: 18px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .88);
            margin-bottom: 32px;
            max-width: 640px;
        }

        .hero-cta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-trust {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            margin-top: 32px;
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
        }

        .hero-trust span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .hero-trust i {
            color: var(--accent);
        }

        /* ===== Value Section ===== */
        .value-section {
            background: var(--bg-white);
            padding: 100px 0;
        }

        .value-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .value-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .value-media img {
            width: 100%;
            height: 440px;
            object-fit: cover;
        }

        .value-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 65%, rgba(7, 42, 38, .28));
            border-radius: var(--radius-lg);
            pointer-events: none;
        }

        .value-copy .section-title {
            margin-bottom: 20px;
        }

        .value-list {
            margin-top: 28px;
            display: grid;
            gap: 20px;
        }

        .value-list-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .value-list-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(14, 79, 70, .08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
        }

        .value-list-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

        .value-list-item p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Model Section ===== */
        .model-section {
            padding: 100px 0;
            background: var(--bg);
        }

        .model-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .model-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow-card);
            border-top: 2px solid transparent;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            position: relative;
        }

        .model-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-top-color: var(--accent);
        }

        .model-card .model-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-md);
            background: rgba(14, 79, 70, .08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-bottom: 22px;
            transition: transform .3s ease;
        }

        .model-card:hover .model-icon {
            transform: rotate(-6deg) scale(1.05);
        }

        .model-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }

        .model-card p {
            font-size: 14.5px;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .model-card .model-tip {
            font-size: 13px;
            font-weight: 500;
            color: var(--accent);
            background: rgba(196, 160, 82, .1);
            padding: 4px 12px;
            border-radius: 100px;
            display: inline-block;
        }

        /* ===== Process Section ===== */
        .process-section {
            padding: 100px 0;
            background: var(--bg-deep);
            color: rgba(255, 255, 255, .85);
        }

        .process-section .section-title {
            color: #fff;
        }

        .process-section .section-subtitle {
            color: rgba(255, 255, 255, .7);
        }

        .process-section .section-eyebrow {
            background: rgba(196, 160, 82, .16);
        }

        .process-timeline {
            position: relative;
            margin-top: 56px;
            padding-left: 0;
        }

        .process-timeline::before {
            content: "";
            position: absolute;
            left: 24px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: rgba(196, 160, 82, .35);
        }

        .process-item {
            position: relative;
            padding: 0 0 48px 80px;
        }

        .process-item:last-child {
            padding-bottom: 0;
        }

        .process-item::before {
            content: "";
            position: absolute;
            left: 15px;
            top: 4px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--accent);
            border: 4px solid rgba(196, 160, 82, .25);
            box-sizing: border-box;
        }

        .process-step {
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .1em;
            color: var(--accent-light);
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .process-item h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .process-item p {
            font-size: 14.5px;
            color: rgba(255, 255, 255, .72);
            line-height: 1.7;
            max-width: 560px;
            margin: 0;
        }

        /* ===== Scenario Section ===== */
        .scenario-section {
            padding: 100px 0;
            background: var(--bg-white);
        }

        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .scenario-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            order: 2;
        }

        .scenario-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .scenario-copy {
            order: 1;
        }

        .scenario-list {
            margin-top: 24px;
            display: grid;
            gap: 14px;
        }

        .scenario-list li {
            display: flex;
            gap: 12px;
            align-items: center;
            font-size: 15px;
            color: var(--text);
            background: var(--bg);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            transition: background .3s ease, transform .3s ease;
        }

        .scenario-list li:hover {
            background: rgba(196, 160, 82, .08);
            transform: translateX(4px);
        }

        .scenario-list i {
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 100px 0;
            background: var(--bg);
        }

        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            background: transparent;
            position: relative;
        }

        .faq-item+.faq-item {
            border-top: 0;
        }

        .faq-item .accordion-button {
            background: transparent;
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            padding: 22px 40px 22px 20px;
            line-height: 1.5;
            border: 0;
            box-shadow: none;
            position: relative;
            border-radius: 0;
            width: 100%;
            text-align: left;
            cursor: pointer;
        }

        .faq-item .accordion-button::after {
            background: none;
            font-family: "bootstrap-icons";
            content: "\F282";
            font-size: 20px;
            color: var(--primary);
            position: absolute;
            right: 18px;
            top: 50%;
            transform: translateY(-50%);
            transition: transform .3s ease;
        }

        .faq-item .accordion-button:not(.collapsed)::after {
            transform: translateY(-50%) rotate(180deg);
            color: var(--accent);
        }

        .faq-item .accordion-button:not(.collapsed) {
            background: rgba(255, 255, 255, .6);
            box-shadow: inset 3px 0 0 var(--accent);
        }

        .faq-item .accordion-body {
            padding: 4px 20px 24px 20px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.75;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 100px 0;
            background: var(--bg-deep);
            position: relative;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }

        .cta-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .cta-copy .section-title {
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-copy .section-subtitle {
            color: rgba(255, 255, 255, .72);
        }

        .cta-features {
            margin-top: 28px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .cta-features li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, .8);
        }

        .cta-features i {
            color: var(--accent);
            font-size: 16px;
        }

        .cta-form-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: 0 12px 36px rgba(0, 0, 0, .2);
            padding: 40px;
        }

        .form-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 28px;
            text-align: center;
        }

        .form-control-custom {
            width: 100%;
            height: 48px;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 0 16px;
            font-size: 15px;
            color: var(--text);
            background: #fff;
            transition: border-color .25s ease, box-shadow .25s ease;
        }

        .form-control-custom:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(196, 160, 82, .18);
            outline: none;
        }

        textarea.form-control-custom {
            height: auto;
            min-height: 100px;
            padding: 12px 16px;
            resize: vertical;
        }

        .form-label-custom {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            display: block;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-select-custom {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='%235B6B68' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 40px;
        }

        .privacy-row {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-top: 20px;
            margin-bottom: 12px;
        }

        .privacy-row input[type="checkbox"] {
            width: 18px;
            height: 18px;
            accent-color: var(--primary);
            margin-top: 2px;
            flex-shrink: 0;
        }

        .privacy-row label {
            font-size: 12.5px;
            color: var(--text-mute);
            line-height: 1.6;
        }

        .btn-submit {
            width: 100%;
            height: 56px;
            background: var(--accent);
            color: #1B2322;
            font-size: 16px;
            font-weight: 700;
            border-radius: var(--radius-md);
            border: 0;
            cursor: pointer;
            transition: all .25s ease;
            margin-top: 4px;
        }

        .btn-submit:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(196, 160, 82, .35);
        }

        .privacy-note {
            margin-top: 16px;
            font-size: 12.5px;
            color: rgba(255, 255, 255, .55);
            text-align: center;
            line-height: 1.6;
        }

        .privacy-note a {
            color: var(--accent-light);
            text-decoration: underline;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, .65);
            padding: 80px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 56px;
        }

        .footer-brand .brand-main {
            color: #fff;
            font-size: 24px;
            font-weight: 800;
            display: block;
        }

        .footer-brand .brand-sub {
            color: var(--accent-light);
            font-size: 10px;
            letter-spacing: .18em;
            text-transform: uppercase;
            margin-top: 4px;
            display: block;
        }

        .footer-intro {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            margin: 20px 0 24px;
            max-width: 360px;
        }

        .social-icons {
            display: flex;
            gap: 12px;
        }

        .social-icons a {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, .08);
            color: rgba(255, 255, 255, .75);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            transition: all .3s ease;
        }

        .social-icons a:hover {
            background: var(--accent);
            color: #1B2322;
            transform: translateY(-3px);
        }

        .footer-title {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: .04em;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .25s ease, padding-left .25s ease;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-links a i {
            font-size: 11px;
            color: var(--accent);
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            line-height: 1.6;
            color: rgba(255, 255, 255, .6);
        }

        .footer-contact i {
            color: var(--accent);
            font-size: 16px;
            margin-top: 2px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .6);
            text-decoration: none;
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .model-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .value-grid,
            .scenario-grid {
                gap: 40px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 991px) {
            .site-header {
                height: 64px;
            }

            .header-inner {
                height: 64px;
            }

            .brand-main {
                font-size: 20px;
            }

            .nav-toggle {
                display: block;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                width: 100%;
                background: rgba(246, 244, 238, .98);
                backdrop-filter: blur(16px);
                padding: 20px 24px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                transition: transform .35s ease;
                z-index: 999;
            }

            .main-nav.open {
                transform: translateY(0);
            }

            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
            }

            .main-nav a {
                display: block;
                padding: 12px 8px;
                font-size: 16px;
                border-bottom: 1px solid rgba(14, 79, 70, .06);
            }

            .main-nav a::after {
                display: none;
            }

            .main-nav a.active {
                background: rgba(14, 79, 70, .06);
                border-radius: var(--radius-md);
                padding-left: 14px;
            }

            .status-badge {
                display: none;
            }

            .page-hero {
                padding: 160px 0 80px;
            }

            .value-grid {
                grid-template-columns: 1fr;
            }

            .value-media img {
                height: 320px;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
            }

            .scenario-media {
                order: 1;
            }

            .scenario-copy {
                order: 2;
            }

            .cta-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }

            .section-padding,
            .value-section,
            .model-section,
            .process-section,
            .scenario-section,
            .faq-section,
            .cta-section {
                padding: 60px 0;
            }

            .page-hero h1 {
                font-size: 30px;
                line-height: 1.3;
            }

            .hero-lead {
                font-size: 16px;
            }

            .hero-cta .btn {
                width: 100%;
                margin-bottom: 8px;
            }

            .model-grid {
                grid-template-columns: 1fr;
            }

            .process-item {
                padding: 0 0 40px 56px;
            }

            .process-timeline::before {
                left: 15px;
            }

            .cta-form-card {
                padding: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-features {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .brand-sub {
                display: none;
            }

            .header-actions .btn-accent-sm {
                padding: 8px 16px;
                font-size: 13px;
            }

            .page-hero {
                padding: 140px 0 60px;
            }

            .value-media img,
            .scenario-media img {
                height: 240px;
            }

            .section-title {
                font-size: 24px;
            }

            .form-row {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category4 */
:root{
  --primary:#0E4F46;
  --primary-dark:#093A33;
  --accent:#C4A052;
  --accent-light:#D8B96A;
  --bg:#F6F4EE;
  --bg-white:#FFFFFF;
  --bg-deep:#072A26;
  --text:#1B2322;
  --text-light:#5B6B68;
  --text-mute:#8A9693;
  --border:#E5E0D5;
  --border-accent:#C4A052;
  --success:#2E7D5C;
  --warning:#B45309;
  --shadow-card:0 2px 8px rgba(14,79,70,.06);
  --shadow-hover:0 12px 36px rgba(14,79,70,.12);
  --radius-lg:24px;
  --radius-md:14px;
  --radius-sm:8px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"Roboto Mono","SF Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  font-weight:400;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:all .25s ease}
a:hover{color:var(--primary)}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--text)}
.container{max-width:1280px;padding-left:24px;padding-right:24px;margin:0 auto}
@media(max-width:767px){.container{padding-left:16px;padding-right:16px}}

/*  Header  */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;height:80px;
  background:rgba(246,244,238,.92);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  transition:all .3s ease;
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:80px;gap:24px}
.brand-main{font-size:24px;font-weight:800;color:var(--primary);letter-spacing:.01em;font-family:var(--font-sans);line-height:1}
.brand-sub{display:block;font-size:10px;letter-spacing:.28em;color:var(--text-light);font-family:var(--font-mono);text-transform:uppercase;margin-top:3px}
.brand-link{display:flex;flex-direction:column;justify-content:center}
.main-nav ul{list-style:none;display:flex;align-items:center;gap:34px;margin:0;padding:0}
.main-nav a{font-size:15px;font-weight:500;color:var(--text-light);position:relative;padding:8px 0;display:inline-block}
.main-nav a:hover{color:var(--primary)}
.main-nav a.active{color:var(--primary);font-weight:600}
.main-nav a.active::after{
  content:"";position:absolute;bottom:-2px;left:0;width:100%;height:2px;background:var(--border-accent);border-radius:2px;
}
.header-cta{display:flex;align-items:center;gap:16px;margin-left:auto}
.header-status{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:var(--primary);
  border:1px solid var(--border-accent);border-radius:999px;padding:5px 14px;background:var(--bg-white);white-space:nowrap;
}
.header-status i{font-size:15px}
.btn-brand{
  background:var(--accent);color:var(--bg-deep);border:none;border-radius:var(--radius-md);
  padding:11px 28px;font-weight:600;font-size:15px;cursor:pointer;transition:all .25s ease;display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
}
.btn-brand:hover{background:var(--accent-light);color:var(--bg-deep);transform:translateY(-2px);box-shadow:0 6px 20px rgba(196,160,82,.35)}
.btn-brand:active{transform:translateY(0)}
.btn-outline{
  background:transparent;border:1.5px solid var(--primary);color:var(--primary);border-radius:var(--radius-md);
  padding:11px 28px;font-weight:600;font-size:15px;cursor:pointer;display:inline-flex;align-items:center;gap:8px;transition:all .25s ease;
}
.btn-outline:hover{background:rgba(14,79,70,.06);color:var(--primary-dark);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.nav-toggle{display:none;background:transparent;border:none;font-size:30px;line-height:1;color:var(--primary);cursor:pointer}
@media(max-width:991px){
  .main-nav{display:none;position:fixed;top:80px;left:0;right:0;background:var(--bg-white);border-bottom:1px solid var(--border);padding:18px 24px;box-shadow:0 18px 40px rgba(14,79,70,.08)}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:4px;align-items:stretch}
  .main-nav a{display:block;padding:12px 0;font-size:17px;border-bottom:1px solid rgba(229,224,213,.6)}
  .main-nav a.active::after{display:none}
  .main-nav a.active{color:var(--primary)}
  .header-status{display:none}
  .nav-toggle{display:block}
  .site-header .container,.site-header .container{height:64px}
  .site-header{height:64px}
  .main-nav{top:64px}
}
@media(max-width:575px){
  .brand-main{font-size:20px}
  .btn-brand{padding:9px 16px;font-size:14px}
  .header-status{display:none}
}

/*  Page Hero  */
.page-hero{
  background-size:cover;background-position:center;background-repeat:no-repeat;
  padding:180px 0 96px;margin-top:0;position:relative;color:#fff;
}
.page-hero::before{
  content:"";position:absolute;inset:0;background:rgba(7,42,38,.72);
  background:linear-gradient(105deg,rgba(7,42,38,.88) 20%,rgba(7,42,38,.55) 70%,rgba(7,42,38,.35));
  z-index:1;
}
.page-hero .container{position:relative;z-index:2}
.hero-tag{
  display:inline-block;border:1px solid rgba(216,185,106,.8);color:var(--accent-light);
  border-radius:999px;font-size:13px;font-weight:500;padding:5px 16px;margin-bottom:22px;letter-spacing:.06em;
  background:rgba(7,42,38,.25);
}
.page-hero h1{font-size:clamp(32px,4.2vw,52px);font-weight:800;color:#fff;line-height:1.2;margin-bottom:18px}
.page-hero h1 span{color:var(--accent-light)}
.page-hero p.lead{font-size:17px;line-height:1.8;max-width:650px;color:rgba(255,255,255,.85);margin-bottom:30px}
.hero-meta{display:flex;gap:26px;flex-wrap:wrap;margin-top:30px}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.75)}
.hero-meta i{color:var(--accent);font-size:16px}
@media(max-width:767px){
  .page-hero{padding:140px 0 62px;text-align:left}
  .page-hero p.lead{font-size:15px}
  .hero-meta{flex-direction:column;gap:10px}
}

/*  Section Common  */
.section{padding:96px 0}
.section-tight{padding:60px 0}
.section-deep{background:var(--bg-deep);color:#fff;position:relative}
.section-head{margin-bottom:52px;max-width:760px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--primary);
  margin-bottom:12px;text-transform:uppercase;
}
.section-deep .section-eyebrow{color:var(--accent)}
.section-head h2{font-size:clamp(24px,3vw,38px);font-weight:800;margin-bottom:14px}
.section-head p{color:var(--text-light);font-size:16px;line-height:1.8}
.section-deep .section-head h2{color:#fff}
.section-deep .section-head p{color:rgba(255,255,255,.72)}
.section-line{width:40px;height:2px;background:var(--accent);border:none;margin:0 0 24px}
.center .section-line{margin-left:auto;margin-right:auto}
.eyebrow-line{display:inline-block;width:40px;height:2px;background:var(--accent);vertical-align:middle;margin-right:10px}
@media(max-width:767px){.section{padding:62px 0}.section-head{margin-bottom:34px}}

/*  Card  */
.card-custom{
  background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);padding:36px;transition:all .3s ease;position:relative;height:100%;
}
.card-custom:hover{box-shadow:var(--shadow-hover);transform:translateY(-5px)}
.card-custom::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent);
  border-radius:var(--radius-lg) var(--radius-lg) 0 0;opacity:0;transform:scaleX(.4);transition:all .3s ease;
}
.card-custom:hover::before{opacity:1;transform:scaleX(1)}
.card-icon{font-size:40px;color:var(--primary);margin-bottom:22px;display:inline-block;transition:transform .3s}
.card-custom:hover .card-icon{transform:rotate(-4deg) scale(1.04)}
.card-num{font-family:var(--font-mono);font-size:64px;font-weight:800;color:var(--border);line-height:1;position:absolute;top:28px;right:28px}
.card-custom h3{font-size:20px;font-weight:700;margin-bottom:12px}
.card-custom p{color:var(--text-light);font-size:15px;line-height:1.75;margin-bottom:16px}
.tag-group{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.tag{display:inline-block;background:rgba(14,79,70,.06);color:var(--primary);font-size:12px;font-weight:500;border-radius:999px;padding:4px 14px}
.tag-light{background:rgba(255,255,255,.1);color:#fff}
.card-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--accent);margin-top:8px}
.card-more i{transition:transform .25s}
.card-more:hover i{transform:translateX(4px)}

/*  Timeline  */
.timeline{position:relative;list-style:none;padding:0;max-width:980px;margin:0 auto}
.timeline::before{content:"";position:absolute;left:27px;top:0;bottom:0;width:1px;background:rgba(196,160,82,.4)}
.timeline-item{position:relative;padding-left:74px;padding-bottom:42px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{
  position:absolute;left:16px;top:2px;width:24px;height:24px;border-radius:50%;
  background:var(--bg-white);border:2px solid var(--accent);z-index:2;box-shadow:0 0 0 4px rgba(196,160,82,.15);
}
.timeline-item:nth-child(even) .timeline-dot{background:var(--accent)}
.timeline-year{display:inline-block;font-family:var(--font-mono);font-weight:700;color:var(--accent);font-size:14px;letter-spacing:.06em;margin-bottom:6px}
.timeline-item h3{font-size:19px;font-weight:700;margin-bottom:8px}
.timeline-item p{color:var(--text-light);font-size:14px;line-height:1.75;max-width:720px}
@media(max-width:767px){.timeline-item{padding-left:56px}.timeline::before{left:20px}.timeline-dot{left:10px}}

/*  Feature Split  */
.feature-split{display:flex;align-items:center;gap:56px;margin-bottom:72px}
.feature-split:last-child{margin-bottom:0}
.feature-split .fs-media{flex:0 0 46%;border-radius:var(--radius-lg);overflow:hidden;position:relative}
.feature-split .fs-media img{width:100%;height:340px;object-fit:cover;transition:transform .5s ease}
.feature-split:hover .fs-media img{transform:scale(1.03)}
.feature-split .fs-content{flex:1}
.feature-split .fs-content h3{font-size:clamp(20px,2.2vw,27px);font-weight:700;margin-bottom:14px}
.feature-split .fs-content p{color:var(--text-light);line-height:1.85;margin-bottom:14px}
.feature-split .fs-media .img-tag{
  position:absolute;left:18px;bottom:18px;background:rgba(14,79,70,.9);color:#fff;
  font-size:13px;padding:6px 16px;border-radius:999px;border:1px solid rgba(255,255,255,.2);
}
@media(max-width:991px){.feature-split{flex-direction:column;gap:28px;margin-bottom:52px}.feature-split .fs-media{flex:0 0 100%}.feature-split .fs-media img{height:260px}}

/*  Count Area  */
.count-section{background:var(--bg-deep);padding:88px 0;position:relative}
.count-section::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:40px;height:2px;background:var(--accent);
}
.count-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:42px}
.count-item{text-align:center;padding:20px;position:relative}
.count-item:not(:last-child)::after{
  content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);width:1px;height:62px;background:rgba(255,255,255,.15);
}
.count-num{font-family:var(--font-mono);font-size:clamp(40px,5vw,60px);font-weight:800;color:var(--accent);line-height:1.15;font-variant-numeric:tabular-nums}
.count-unit{font-size:15px;font-weight:500;color:#fff;margin-left:3px}
.count-label{display:block;font-size:14px;color:rgba(255,255,255,.65);margin-top:8px;letter-spacing:.04em}
@media(max-width:991px){.count-grid{grid-template-columns:repeat(2,1fr)}.count-item::after{display:none!important}}
@media(max-width:575px){.count-grid{grid-template-columns:1fr 1fr;gap:10px}.count-num{font-size:32px;line-height:1.3}}

/*  FAQ  */
.faq-list{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border);position:relative}
.faq-item:first-child{border-top:1px solid var(--border)}
.faq-item.faq-open{background:rgba(255,255,255,.6)}
.faq-item.faq-open::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent)}
.faq-q{
  font-size:18px;font-weight:700;padding:22px 46px 22px 20px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;transition:color .25s;
}
.faq-q:hover{color:var(--primary)}
.faq-q .faq-icon{flex:0 0 auto;width:24px;height:24px;position:relative;display:inline-block}
.faq-q .faq-icon::before,.faq-q .faq-icon::after{content:"";position:absolute;background:var(--primary);transition:all .25s}
.faq-q .faq-icon::before{width:14px;height:2px;top:11px;left:5px}
.faq-q .faq-icon::after{width:2px;height:14px;top:5px;left:11px}
.faq-item.faq-open .faq-icon::after{transform:scaleY(0)}
.faq-a{display:none;padding:0 46px 24px 20px;color:var(--text-light);font-size:15px;line-height:1.8}
.faq-item.faq-open .faq-a{display:block}
@media(max-width:767px){.faq-q{font-size:16px;padding-left:12px}.faq-a{padding-left:12px;padding-right:22px}}

/*  CTA  */
.cta-panel{
  background:var(--bg-white);border-radius:var(--radius-lg);padding:70px 56px;text-align:center;
  box-shadow:var(--shadow-card);border:1px solid var(--border);position:relative;overflow:hidden;
}
.cta-panel::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--accent)}
.cta-panel h2{font-size:clamp(24px,3vw,36px);font-weight:800;margin-bottom:14px}
.cta-panel p{font-size:16px;color:var(--text-light);max-width:620px;margin:0 auto 30px;line-height:1.8}
.cta-panel .btn-brand{font-size:17px;padding:14px 40px}
.cta-note{margin-top:18px;font-size:13px;color:var(--text-mute)}
@media(max-width:767px){.cta-panel{padding:44px 24px}}

/*  Form Section  */
.form-deep{background:var(--bg-deep);color:#fff;padding:90px 0}
.form-deep .section-head h2{color:#fff}
.form-deep .section-head p{color:rgba(255,255,255,.7)}
.form-card{
  background:var(--bg-white);border-radius:var(--radius-lg);padding:44px;box-shadow:var(--shadow-hover);
  color:var(--text);max-width:620px;margin:0 auto;
}
.form-card .form-label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}
.form-card .form-control{
  border:1px solid var(--border);border-radius:var(--radius-md);height:48px;padding:0 16px;font-size:15px;
  transition:all .25s ease;background:var(--bg-white);
}
.form-card textarea.form-control{height:auto;padding:12px 16px;resize:vertical;min-height:96px}
.form-card .form-control:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px rgba(196,160,82,.18)}
.form-card .form-check-input{border-radius:4px;border:1.5px solid var(--primary);width:18px;height:18px;margin-top:2px}
.form-card .form-check-input:checked{background-color:var(--primary);border-color:var(--primary)}
.privacy-note{font-size:13px;color:var(--text-mute);line-height:1.7;margin-top:16px}
.privacy-note a{color:var(--primary);text-decoration:underline}
.btn-block{display:block;width:100%;height:54px;font-size:16px;font-weight:700;border-radius:var(--radius-md);border:none;background:var(--accent);color:var(--bg-deep);transition:all .25s ease;margin-top:12px}
.btn-block:hover{background:var(--accent-light);box-shadow:0 8px 24px rgba(196,160,82,.3)}
@media(max-width:767px){.form-card{padding:32px 20px}}

/*  Toast  */
.toast-area{position:fixed;bottom:32px;right:32px;z-index:9999}
.toast-message{
  background:var(--primary);color:#fff;padding:14px 26px;border-radius:999px;
  box-shadow:0 12px 36px rgba(0,0,0,.18);font-size:14px;font-weight:500;display:none;align-items:center;gap:8px;
  animation:toastIn .3s ease;border:1px solid rgba(255,255,255,.15);
}
.toast-message.show{display:flex}
@keyframes toastIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/*  Footer  */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.65);padding:68px 0 0}
.site-footer .brand-main{color:#fff}
.site-footer .brand-sub{color:rgba(255,255,255,.4)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{max-width:330px}
.footer-intro{font-size:15px;line-height:1.8;color:rgba(255,255,255,.56);margin:18px 0 20px}
.social-icons{display:flex;gap:10px}
.social-icons a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.18);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);font-size:16px;transition:all .25s;
}
.social-icons a:hover{background:var(--accent);border-color:var(--accent);color:var(--bg-deep);transform:translateY(-2px)}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.06em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.55);display:flex;align-items:center;gap:6px;transition:all .2s}
.footer-links a:hover{color:var(--accent-light);padding-left:4px}
.footer-links a i{font-size:11px;color:var(--accent)}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.footer-contact li{font-size:14px;display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.55)}
.footer-contact i{color:var(--accent);margin-top:5px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding:22px 0;font-size:13px;color:rgba(255,255,255,.35);gap:12px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.4)}
.footer-bottom a:hover{color:var(--accent)}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:575px){.footer-grid{grid-template-columns:1fr;gap:26px}.footer-bottom{flex-direction:column;text-align:center}}

/*  Floating CTA  */
.float-cta{
  position:fixed;bottom:36px;right:36px;z-index:900;display:flex;align-items:center;gap:10px;
  background:var(--accent);border:none;border-radius:999px;padding:14px 26px;
  color:var(--bg-deep);font-weight:700;font-size:15px;box-shadow:0 12px 32px rgba(196,160,82,.4);
  transition:all .3s ease;cursor:pointer;
}
.float-cta::before{
  content:"";width:9px;height:9px;border-radius:50%;background:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.3);animation:pulse 2s infinite;
}
.float-cta:hover{transform:translateY(-4px);background:var(--accent-light);color:var(--bg-deep)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,255,255,.5)}70%{box-shadow:0 0 0 12px rgba(255,255,255,0)}100%{box-shadow:0 0 0 0 rgba(255,255,255,0)}}
@media(max-width:575px){.float-cta{bottom:18px;right:18px;padding:12px 20px;font-size:14px}}

/*  Modal  */
.modal-content{border-radius:var(--radius-lg);border:none;overflow:hidden}
.modal-header{background:var(--primary);border:none;padding:22px 28px}
.modal-header .modal-title{color:#fff;font-weight:700;font-size:19px}
.modal-header .btn-close{filter:brightness(0) invert(1);opacity:.8}
.modal-body{padding:30px}
.modal-body .form-label{font-size:14px;font-weight:600}
.modal-body .form-control{border:1px solid var(--border);border-radius:var(--radius-md);padding:10px 14px}
.modal-body .form-control:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(196,160,82,.18)}

/*  Media Adjust  */
@media(max-width:767px){
  .page-hero{padding:130px 0 56px}
  .hero-tag{font-size:12px}
  .float-cta{bottom:16px;right:16px;padding:11px 18px;font-size:13px}
}