/* roulang page: index */
/* ========= 设计变量 ========= */
:root {
  --bg-body: #161e2c;
  --bg-deep: #111826;
  --bg-section-alt: #1d2838;
  --bg-card: #1f2c3e;
  --bg-card-hover: #25344a;
  --bg-input: rgba(255, 255, 255, 0.06);

  --text-main: #ece8de;
  --text-muted: #a6b0bd;
  --text-weak: #798494;
  --text-inverse: #141c29;

  --accent: #d9b06c;
  --accent-hover: #e5c184;
  --accent-dark: #b08e4f;
  --accent-soft: rgba(217, 176, 108, 0.15);

  --teal: #67b3a0;
  --teal-soft: rgba(103, 179, 160, 0.12);
  --brick: #cc7a5a;
  --brick-soft: rgba(204, 122, 90, 0.12);

  --border: rgba(217, 176, 108, 0.22);
  --border-light: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(217, 176, 108, 0.45);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.20);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.28);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.36);
  --shadow-accent: 0 8px 28px rgba(217, 176, 108, 0.22);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  --content-max: 1200px;
  --container-pad: clamp(16px, 4vw, 48px);

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", Arial, sans-serif;
  --font-serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", Georgia, serif;
}

/* ========= 基础重置 ========= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text-main);
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection { background: var(--accent); color: var(--bg-deep); }

/* ========= 容器与通用排版 ========= */
.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

.section { padding: clamp(48px, 8vw, 96px) 0; }

.section-alt {
  background: var(--bg-section-alt);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.section-head {
  max-width: 740px;
  margin: 0 auto 48px;
  text-align: center;
}

.section-head .eyebrow { margin-bottom: 14px; }

.section-head h2 {
  font-size: clamp(27px, 4vw, 40px);
  margin-top: 10px;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 16px;
}

.section-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  text-align: left;
  max-width: none;
}

.section-head-row h2 { margin-top: 0; margin-bottom: 0; }

.eyebrow {
  display: inline-block;
  padding: 5px 16px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-pill);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--accent);
  line-height: 1.4;
}

/* ========= 按钮 ========= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease;
  white-space: nowrap;
}

.btn-accent {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(217, 176, 108, 0.3);
}

.btn-accent:active { transform: translateY(0); box-shadow: var(--shadow-sm); }

.btn-ghost {
  border-color: var(--border-strong);
  background: transparent;
  color: var(--text-main);
}

.btn-ghost:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

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

.btn-sm { padding: 8px 20px; font-size: 14px; }

/* ========= 徽章 / 标签 ========= */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--border);
  line-height: 1.5;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 13px;
  color: var(--text-main);
  backdrop-filter: blur(4px);
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.hero-badge:hover { border-color: var(--border-strong); background: var(--accent-soft); }

/* ========= 头部导航 ========= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 14px 0;
  background: rgba(17, 24, 38, 0.84);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
}

.header-shell {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 8px 14px 8px 20px;
  box-shadow: var(--shadow-sm);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: 6px;
  flex-shrink: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--bg-deep);
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 20px;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-md);
  line-height: 1;
}

.brand-text {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.nav-link {
  position: relative;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  color: var(--text-muted);
  border: 1px solid transparent;
  transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
}

.nav-link:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-1px);
}

.nav-link.active {
  color: var(--accent);
  background: var(--accent-soft);
  border-color: var(--border-strong);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  flex-shrink: 0;
}

.nav-toggle {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  display: none;
  place-items: center;
  gap: 4px;
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.nav-toggle:hover { border-color: var(--border-strong); background: var(--accent-soft); }

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ========= 首屏 Hero ========= */
.hero {
  position: relative;
  min-height: 76vh;
  display: flex;
  align-items: center;
  padding: clamp(64px, 8vw, 120px) 0;
  background:
    linear-gradient(to bottom, rgba(13, 19, 30, 0.82), rgba(20, 28, 41, 0.92)),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  border-bottom: 1px solid var(--border-light);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.5;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.hero-kicker {
  display: inline-block;
  padding: 8px 22px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-pill);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: rgba(17, 24, 38, 0.35);
  margin-bottom: 22px;
}

.hero-title {
  font-size: clamp(36px, 7vw, 76px);
  font-weight: 900;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.35);
}

.hero-sub {
  font-size: clamp(15px, 2.2vw, 19px);
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 32px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* ========= 公告条 ========= */
.notify-strip {
  background: var(--accent-soft);
  border-bottom: 1px solid var(--border-light);
  padding: 10px 0;
}

.notify-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 14px;
}

.notify-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.notify-inner p {
  flex: 1;
  min-width: 260px;
}

/* ========= 介绍区块 ========= */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: center;
}

.intro-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  transform: rotate(-1deg);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.intro-media:hover { transform: rotate(0deg) scale(1.01); box-shadow: 0 24px 56px rgba(0, 0, 0, 0.4); }

.intro-media::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(255, 255, 255, 0.32);
  border-radius: 12px;
  z-index: 1;
  pointer-events: none;
}

.intro-body .eyebrow { margin-bottom: 14px; }

.intro-body h2 { font-size: clamp(26px, 3.4vw, 38px); margin-bottom: 10px; }

.intro-lead {
  font-size: 18px;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 16px;
}

.intro-body > p {
  color: var(--text-muted);
  margin-bottom: 14px;
}

.intro-points {
  display: grid;
  gap: 10px;
  margin: 22px 0 28px;
}

.intro-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-main);
  font-size: 15px;
}

.check-dot {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--teal-soft);
  border: 1px solid rgba(103, 179, 160, 0.4);
  color: var(--teal);
  font-size: 13px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ========= 分类入口 ========= */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.category-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  display: block;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border);
  background: var(--bg-card-hover);
}

.category-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-deep);
}

.category-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.category-card:hover .category-thumb img { transform: scale(1.06); }

.category-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20, 28, 41, 0.65), transparent 45%);
  pointer-events: none;
}

.category-body { padding: 22px; }

.category-tag {
  display: inline-block;
  font-size: 12px;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  background: var(--accent-soft);
  border: 1px solid var(--border);
  color: var(--accent);
  margin-bottom: 14px;
}

.category-body h3 {
  font-size: 20px;
  margin-bottom: 8px;
}

.category-body p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.category-more {
  font-size: 14px;
  color: var(--accent);
  font-weight: 500;
  transition: letter-spacing 0.25s ease;
}

.category-card:hover .category-more { letter-spacing: 0.06em; }

/* ========= 特性模块 ========= */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border);
}

.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--border);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========= 信息流 / 最新信息 ========= */
.feed-section { background: var(--bg-section-alt); }

.feed-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 32px;
}

.feed-item {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 26px 26px 22px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.feed-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border);
  background: var(--bg-card-hover);
}

.feed-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.feed-time {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.4;
}

.feed-title {
  font-size: 19px;
  margin-bottom: 8px;
  line-height: 1.4;
}

.feed-title a {
  transition: color 0.2s ease;
}

.feed-title a:hover { color: var(--accent); }

.feed-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.empty-tip {
  grid-column: 1 / -1;
  background: var(--bg-card);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  padding: 48px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 15px;
}

/* ========= 流程步骤 ========= */
.steps-section {
  position: relative;
  background:
    linear-gradient(rgba(17, 24, 38, 0.92), rgba(17, 24, 38, 0.94)),
    url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.steps-wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.steps-wrap::before {
  content: "";
  position: absolute;
  top: 40px;
  left: 12%;
  right: 12%;
  height: 1px;
  border-top: 2px dashed rgba(217, 176, 108, 0.4);
  z-index: 0;
}

.step-card {
  position: relative;
  z-index: 1;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border);
}

.step-num {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-deep);
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 15px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  box-shadow: var(--shadow-md);
}

.step-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ========= 数据统计 ========= */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-box {
  text-align: center;
  padding: 32px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.stat-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border);
}

.stat-value {
  display: block;
  font-family: var(--font-serif);
  font-size: 38px;
  font-weight: 900;
  line-height: 1.2;
  color: var(--accent);
  margin-bottom: 6px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
}

/* ========= FAQ ========= */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.faq-item:hover { border-color: var(--border); }

.faq-item[open] { border-color: var(--border-strong); box-shadow: var(--shadow-sm); }

.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 22px;
  font-weight: 600;
  font-size: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  line-height: 1.5;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.faq-item[open] summary::after { content: "−"; }

.faq-answer {
  padding: 0 22px 22px;
  margin-top: -8px;
  border-top: 1px dashed var(--border-light);
  padding-top: 16px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ========= CTA 区块 ========= */
.cta-section { padding-bottom: clamp(48px, 8vw, 96px); }

.cta-panel {
  position: relative;
  background:
    linear-gradient(to bottom, rgba(17, 24, 38, 0.72), rgba(17, 24, 38, 0.86)),
    url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: clamp(36px, 6vw, 64px) clamp(24px, 5vw, 64px);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.cta-panel > * { position: relative; z-index: 1; }

.cta-panel .eyebrow { margin-bottom: 18px; }

.cta-panel h2 {
  font-size: clamp(26px, 4vw, 42px);
  margin-bottom: 14px;
}

.cta-panel p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 28px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.cta-sticker {
  position: absolute;
  top: -26px;
  right: 34px;
  z-index: 2;
  width: 112px;
  height: 112px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.3;
  transform: rotate(10deg);
  border: 3px double var(--bg-deep);
  box-shadow: var(--shadow-md);
  pointer-events: none;
}

/* ========= 页脚 ========= */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-light);
  padding: 56px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1.3fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand { margin-bottom: 14px; }

.footer-about p {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.8;
}

.footer-col h4 {
  font-size: 15px;
  margin-bottom: 16px;
  color: var(--text-main);
  letter-spacing: 0.08em;
}

.footer-col ul {
  display: grid;
  gap: 10px;
}

.footer-col ul li {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

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

.footer-col ul li span { color: var(--text-weak); }

.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-weak);
}

/* ========= 响应式 ========= */
@media (max-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .intro-grid { grid-template-columns: 1fr; gap: 36px; }
  .category-grid { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .steps-wrap { grid-template-columns: repeat(2, 1fr); }
  .steps-wrap::before { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  .header-shell { justify-content: space-between; padding: 8px 12px 8px 16px; }

  .site-nav {
    display: none;
    order: 3;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px;
    box-shadow: var(--shadow-lg);
    margin-top: 6px;
  }

  .site-nav.open { display: flex; }

  .nav-link {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    text-align: center;
  }

  .nav-link.active { background: var(--accent-soft); }

  .nav-toggle { display: grid; }

  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .feed-list { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .section { padding: 40px 0; }
  .section-head { margin-bottom: 34px; }

  .section-head-row { flex-direction: column; align-items: flex-start; }

  .feature-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .steps-wrap { grid-template-columns: 1fr; }
  .stats-grid { gap: 14px; }

  .cta-sticker { display: none; }

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

@media (max-width: 520px) {
  .hero { min-height: auto; padding: 56px 0; }
  .hero-title { font-size: 34px; }
  .hero-actions .btn { width: 100%; }
  .hero-badge { padding: 6px 14px; font-size: 12px; }

  .brand-text { font-size: 17px; }

  .feature-card { padding: 24px 18px; }
  .feed-item { padding: 20px 16px; }
  .stat-box { padding: 24px 12px; }
  .stat-value { font-size: 30px; }

  .faq-item summary { padding: 16px; font-size: 15px; }
  .faq-answer { padding-left: 16px; padding-right: 16px; }

  .cta-panel { padding: 36px 18px; }
  .cta-actions .btn { width: 100%; }

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

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --ink: #2d2a26;
  --paper: #f7f2e9;
  --card: #fffdf8;
  --accent: #d97706;
  --accent-dark: #b45309;
  --moss: #3f6212;
  --text: #292524;
  --muted: #78716c;
  --border: #e7e0d3;
  --radius: 10px;
  --shadow: 4px 4px 0 var(--ink);
  --shadow-lg: 7px 7px 0 var(--ink);
  --space-section: 84px;
  --font-serif: 'Noto Serif SC', 'Songti SC', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(45, 42, 38, 0.045) 1px, transparent 1px);
  background-size: 22px 22px;
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease;
}

button, input {
  font: inherit;
  color: inherit;
}

ul, ol {
  list-style: none;
}

/* ===== 容器 ===== */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--ink);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space: nowrap;
}

.btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 var(--ink);
  background: #fff;
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--ink);
}

.btn:focus-visible,
.nav-toggle:focus-visible,
.nav-link:focus-visible,
.faq-question:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 14px;
}

.btn-ghost {
  background: rgba(247, 242, 233, 0.16);
  color: var(--paper);
  border-color: var(--paper);
  box-shadow: 3px 3px 0 rgba(247, 242, 233, 0.5);
}

.btn-ghost:hover {
  background: var(--paper);
  color: var(--ink);
}

.btn-dark {
  background: var(--ink);
  color: var(--paper);
}

.btn-dark:hover {
  background: #1c1917;
  color: #fff;
}

/* ===== Header / 卡片化导航面板 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(247, 242, 233, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--ink);
}

.header-shell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
  padding: 12px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 900;
  background: var(--accent);
  color: #fff;
  border: 2px solid var(--ink);
  border-radius: 12px;
  box-shadow: 2px 2px 0 var(--ink);
}

.brand-text {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .5px;
  color: var(--ink);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 12px;
}

.nav-link {
  padding: 9px 16px;
  border: 2px solid transparent;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}

.nav-link:hover {
  background: #fff;
  border-color: var(--ink);
  transform: translateY(-1px);
}

.nav-link.active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
  box-shadow: 2px 2px 0 var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 42px;
  height: 42px;
  padding: 10px;
  background: transparent;
  border: 2px solid var(--ink);
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 2px 2px 0 var(--ink);
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

/* ===== 页面 Banner ===== */
.page-banner {
  position: relative;
  padding: 76px 0 72px;
  background-color: var(--ink);
  background-image: linear-gradient(rgba(45, 42, 38, 0.82), rgba(45, 42, 38, 0.86)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  border-bottom: 2px solid var(--ink);
  color: var(--paper);
}

.page-banner .container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(247, 242, 233, 0.6);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: rgba(247, 242, 233, 0.75);
}

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

.banner-badge {
  display: inline-block;
  padding: 6px 14px;
  border: 2px dashed rgba(247, 242, 233, 0.85);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  background: rgba(0, 0, 0, 0.22);
  margin-bottom: 16px;
}

.page-banner h1 {
  font-family: var(--font-serif);
  font-size: 46px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.page-banner .banner-lead {
  font-size: 17px;
  line-height: 1.8;
  max-width: 600px;
  color: rgba(247, 242, 233, 0.85);
  margin-bottom: 28px;
}

.banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ===== 通用板块 ===== */
.section {
  padding: var(--space-section) 0;
}

.section-head {
  max-width: 680px;
  margin-bottom: 44px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  border: 2px solid var(--ink);
  border-radius: 40px;
  background: #fff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.3;
  margin: 16px 0 12px;
  color: var(--ink);
}

.section-desc {
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

/* ===== 平台简介 ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: center;
}

.about-media img {
  width: 100%;
  border: 2px solid var(--ink);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  transform: rotate(-1deg);
  transition: transform .3s ease, box-shadow .3s ease;
}

.about-media:hover img {
  transform: rotate(0deg) translate(-2px, -2px);
  box-shadow: 9px 9px 0 var(--ink);
}

.about-content .section-title {
  margin-top: 14px;
}

.about-content > p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  margin-top: 14px;
}

.about-list {
  display: grid;
  gap: 12px;
  margin: 22px 0 28px;
}

.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.6;
}

.about-list li::before {
  content: "✳";
  color: var(--accent);
  font-size: 18px;
  font-weight: 900;
  flex-shrink: 0;
}

/* ===== 核心特色 ===== */
.features-section {
  border-top: 2px solid var(--ink);
  background: #fff;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: 12px;
  padding: 26px 22px;
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease;
}

.feature-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--ink);
  background: rgba(217, 119, 6, 0.16);
  border: 2px solid var(--ink);
  border-radius: 12px;
  margin-bottom: 18px;
  box-shadow: 2px 2px 0 var(--ink);
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ===== 数据统计 ===== */
.stats-section {
  background: var(--ink);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  color: var(--paper);
}

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

.stat-item {
  text-align: center;
  padding: 18px 12px;
  border: 2px solid rgba(247, 242, 233, 0.28);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 42px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1.2;
}

.stat-label {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(247, 242, 233, 0.72);
}

/* ===== 了解路线 ===== */
.journey-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.journey-content .section-title {
  margin-top: 14px;
}

.journey-content > p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
  margin-top: 12px;
  margin-bottom: 28px;
}

.timeline {
  position: relative;
  padding-left: 34px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: var(--ink);
  border-radius: 3px;
}

.timeline-item {
  position: relative;
  padding: 0 0 28px 8px;
}

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

.timeline-item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border: 2px solid var(--ink);
  border-radius: 50%;
}

.timeline-step {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 2px 12px;
  background: var(--accent);
  color: #fff;
  border: 2px solid var(--ink);
  border-radius: 40px;
  margin-bottom: 8px;
  box-shadow: 2px 2px 0 var(--ink);
}

.timeline-item h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 5px;
}

.timeline-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.journey-media img {
  width: 100%;
  border: 2px solid var(--ink);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  transform: rotate(1deg);
  transition: transform .3s ease, box-shadow .3s ease;
}

.journey-media:hover img {
  transform: rotate(0deg) translate(-2px, -2px);
  box-shadow: 9px 9px 0 var(--ink);
}

/* ===== FAQ ===== */
.faq-section {
  border-top: 2px solid var(--ink);
  background: #fff;
}

.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.faq-item {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: 12px;
  box-shadow: 3px 3px 0 var(--ink);
  overflow: hidden;
  transition: box-shadow .2s ease, transform .2s ease;
}

.faq-item.open {
  box-shadow: 4px 4px 0 var(--ink);
  transform: translate(-1px, -1px);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 18px 22px;
  background: transparent;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  transition: background .2s ease;
}

.faq-question:hover {
  background: rgba(217, 119, 6, 0.07);
}

.faq-icon {
  font-size: 20px;
  font-weight: 400;
  color: var(--accent);
  transition: transform .25s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  display: none;
  padding: 0 22px 20px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.faq-item.open .faq-answer {
  display: block;
  animation: fadeIn .3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 68px 0;
  background-image: linear-gradient(rgba(217, 119, 6, 0.92), rgba(180, 83, 9, 0.94)), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.cta-box {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.cta-box h2 {
  font-family: var(--font-serif);
  font-size: 34px;
  font-weight: 900;
  color: #fff;
  text-shadow: 3px 3px 0 var(--ink);
  margin-bottom: 14px;
}

.cta-box p {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.94);
  margin-bottom: 26px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--ink);
  color: rgba(247, 242, 233, 0.72);
  padding: 56px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 44px;
}

.footer-brand .brand-text {
  color: var(--paper);
}

.footer-brand .brand-mark {
  background: var(--accent);
}

.footer-about p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(247, 242, 233, 0.6);
  margin-top: 14px;
}

.footer-col h4 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.footer-col ul {
  display: grid;
  gap: 10px;
  font-size: 14px;
}

.footer-col a {
  color: rgba(247, 242, 233, 0.7);
}

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

.footer-col span {
  color: rgba(247, 242, 233, 0.45);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid rgba(247, 242, 233, 0.16);
  font-size: 13px;
  color: rgba(247, 242, 233, 0.48);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root {
    --space-section: 68px;
  }

  .site-nav {
    gap: 4px;
  }

  .nav-link {
    padding: 8px 12px;
    font-size: 14px;
  }

  .brand-text {
    font-size: 16px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .journey-media {
    order: -1;
    max-width: 520px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .header-shell {
    min-height: 64px;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border: 2px solid var(--ink);
    border-top: none;
    border-radius: 0 0 14px 14px;
    box-shadow: 6px 6px 0 rgba(45, 42, 38, 0.22);
    flex-direction: column;
    gap: 6px;
    padding: 16px;
    margin: 0;
  }

  .site-nav.open {
    display: flex;
  }

  .nav-link {
    display: block;
    padding: 11px 14px;
    border-radius: 10px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-actions .btn-accent {
    display: none;
  }

  .page-banner {
    padding: 56px 0 52px;
  }

  .page-banner h1 {
    font-size: 34px;
  }

  .page-banner .banner-lead {
    font-size: 15px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-num {
    font-size: 34px;
  }

  .section-title {
    font-size: 27px;
  }

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

  .cta-box h2 {
    font-size: 27px;
  }

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

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  :root {
    --space-section: 56px;
  }

  .brand-text {
    font-size: 15px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 17px;
  }

  .page-banner h1 {
    font-size: 28px;
  }

  .banner-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .banner-actions .btn {
    width: 100%;
  }

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

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

  .stat-num {
    font-size: 30px;
  }

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

  .about-list {
    margin-top: 16px;
  }

  .btn {
    padding: 10px 16px;
    font-size: 14px;
  }
}

/* roulang page: article */
:root {
  --bg: #f5f0e7;
  --bg-soft: #efe7d8;
  --surface: #fbf7ef;
  --surface-2: #f2e9db;
  --ink: #2d2a26;
  --muted: #7d7468;
  --line: #d9cebb;
  --line-dark: #a89b85;
  --primary: #3e5c4a;
  --primary-dark: #2f4a3c;
  --accent: #c2723b;
  --accent-dark: #a85f33;
  --bg-dark: #2c2e27;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(60, 50, 35, .08);
  --shadow-lg: 0 18px 48px rgba(60, 50, 35, .14);
  --font-head: "Songti SC", "SimSun", "STSong", "Noto Serif SC", Georgia, serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(/%23n)' opacity='0.05'/%3E%3C/svg%3E");
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: var(--primary);
  transition: color .2s ease;
}

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

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

button {
  cursor: pointer;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(62, 92, 74, .4);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== 导航 ===== */
.site-header {
  position: relative;
  z-index: 50;
  padding: 18px 0 8px;
}

.header-shell {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--surface);
  border: 2px solid var(--line);
  border-radius: 18px;
  padding: 10px 12px 10px 18px;
  box-shadow: 6px 6px 0 rgba(120, 100, 70, .07), var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 12px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 22px;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .18);
}

.brand-text {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  color: var(--ink);
  letter-spacing: .02em;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.nav-link {
  padding: 9px 16px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  background: transparent;
  border: 1px solid transparent;
  text-decoration: none;
  transition: background .2s, border-color .2s, color .2s, box-shadow .2s;
  white-space: nowrap;
}

.nav-link:hover {
  background: var(--bg-soft);
  border-color: var(--line);
  color: var(--primary);
}

.nav-link.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(62, 92, 74, .25);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  transition: background .2s, color .2s, transform .2s, box-shadow .2s, border-color .2s;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 14px;
  border-radius: 10px;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(194, 114, 59, .18);
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(194, 114, 59, .28);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--line-dark);
}

.btn-outline:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(194, 114, 59, .04);
}

.btn-light {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 4px 12px rgba(0, 0, 0, .12);
}

.btn-light:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, .55);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .1);
  border-color: #fff;
  color: #fff;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== 文章首屏 ===== */
.article-hero {
  position: relative;
  padding: 92px 0 76px;
  background-color: var(--bg-dark);
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
}

.article-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(35, 40, 33, .82), rgba(55, 58, 45, .55));
}

.article-hero .container {
  position: relative;
  z-index: 2;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .72);
  margin-bottom: 22px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, .85);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, .3);
  transition: color .2s, border-color .2s;
}

.breadcrumb a:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, .7);
}

.breadcrumb span {
  color: rgba(255, 255, 255, .35);
}

.breadcrumb em {
  font-style: normal;
  color: #e3c9a2;
}

.article-hero h1 {
  font-family: var(--font-head);
  font-size: 44px;
  font-weight: 700;
  line-height: 1.3;
  max-width: 880px;
  margin: 0 0 20px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, .3);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  padding: 5px 13px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: rgba(255, 255, 255, .82);
}

/* ===== 正文区 ===== */
.article-main {
  padding: 56px 0 48px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
}

.article-body {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 8px 8px 0 rgba(120, 100, 70, .06), var(--shadow);
  padding: 32px;
  min-width: 0;
}

.article-cover {
  margin: 0 0 26px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
}

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

.article-content {
  font-size: 16.5px;
  line-height: 1.9;
  color: #3d3933;
}

.article-content h2 {
  font-family: var(--font-head);
  font-size: 26px;
  margin: 40px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--accent);
  line-height: 1.4;
}

.article-content h3 {
  font-family: var(--font-head);
  font-size: 20px;
  margin: 28px 0 12px;
  line-height: 1.5;
}

.article-content p {
  margin: 0 0 18px;
}

.article-content ul,
.article-content ol {
  margin: 0 0 18px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--bg-soft);
  padding: 16px 20px;
  border-radius: 8px;
  margin: 24px 0;
  font-style: italic;
  color: var(--muted);
}

.article-content img {
  max-width: 100%;
  border-radius: 12px;
  margin: 8px 0 18px;
}

.article-content a {
  color: var(--accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-tags {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-soft);
  border: 1px dashed var(--line-dark);
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 13px;
  color: var(--muted);
}

.article-nav-links {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 侧栏 ===== */
.article-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 24px;
}

.side-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 4px 4px 0 rgba(120, 100, 70, .05);
  padding: 22px;
}

.side-card h3 {
  font-family: var(--font-head);
  font-size: 18px;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
  position: relative;
}

.side-card h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 32px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.side-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.side-links li {
  margin-bottom: 10px;
}

.side-links li:last-child {
  margin-bottom: 0;
}

.side-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 10px;
  border-radius: 8px;
  transition: background .2s, color .2s, transform .2s;
}

.side-links a:hover {
  background: var(--bg-soft);
  color: var(--primary);
  transform: translateX(3px);
}

.side-links a i {
  color: var(--accent);
  font-size: 12px;
}

.side-card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.8;
}

.side-cta p {
  margin-bottom: 14px;
}

/* ===== 未找到 ===== */
.not-found-card {
  max-width: 560px;
  margin: 64px auto;
  text-align: center;
  background: var(--surface);
  border: 2px dashed var(--line-dark);
  border-radius: 20px;
  padding: 52px 36px;
  box-shadow: 8px 8px 0 rgba(120, 100, 70, .06), var(--shadow);
}

.not-found-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: var(--bg-soft);
  border-radius: 50%;
  font-size: 26px;
  color: var(--accent);
  margin-bottom: 18px;
}

.not-found-card h1 {
  font-family: var(--font-head);
  font-size: 30px;
  margin: 0 0 10px;
}

.not-found-card p {
  color: var(--muted);
  margin: 0 0 26px;
}

/* ===== 板块通用 ===== */
.section-head {
  max-width: 660px;
  margin-bottom: 40px;
}

.section-kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--accent);
  border: 1px solid rgba(194, 114, 59, .45);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 14px;
  background: rgba(194, 114, 59, .05);
}

.section-head h2 {
  font-family: var(--font-head);
  font-size: 34px;
  line-height: 1.3;
  margin: 0 0 12px;
}

.section-head p {
  font-size: 16px;
  color: var(--muted);
  margin: 0;
}

/* ===== 相关推荐 ===== */
.related-section {
  padding: 72px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.related-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  text-decoration: none;
  color: var(--ink);
  box-shadow: 4px 4px 0 rgba(120, 100, 70, .05);
  transition: transform .25s, box-shadow .25s;
}

.related-card:hover {
  transform: translateY(-6px);
  box-shadow: 10px 12px 0 rgba(120, 100, 70, .08), var(--shadow-lg);
}

.related-img {
  height: 200px;
  overflow: hidden;
}

.related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}

.related-card:hover .related-img img {
  transform: scale(1.04);
}

.related-body {
  padding: 20px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(194, 114, 59, .08);
  border: 1px solid rgba(194, 114, 59, .3);
  border-radius: 999px;
  padding: 3px 10px;
  margin-bottom: 12px;
}

.related-body h3 {
  font-family: var(--font-head);
  font-size: 20px;
  margin: 0 0 8px;
  line-height: 1.4;
}

.related-body p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.7;
}

/* ===== 访问流程 ===== */
.steps-section {
  padding: 72px 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.step-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 32px 26px 28px;
  box-shadow: 4px 4px 0 rgba(120, 100, 70, .05);
  transition: box-shadow .25s, transform .25s;
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: 8px 10px 0 rgba(120, 100, 70, .08), var(--shadow);
}

.step-num {
  font-family: var(--font-head);
  font-size: 52px;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 2px var(--accent);
  margin-bottom: 18px;
}

.step-card h3 {
  font-family: var(--font-head);
  font-size: 20px;
  margin: 0 0 10px;
}

.step-card p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
  line-height: 1.8;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 72px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0 22px;
  box-shadow: 3px 3px 0 rgba(120, 100, 70, .04);
  transition: border-color .2s, box-shadow .2s;
}

.faq-item[open] {
  border-color: var(--line-dark);
  box-shadow: 6px 6px 0 rgba(120, 100, 70, .06);
}

.faq-item summary {
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  padding: 18px 0;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color .2s;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--primary);
}

.faq-item summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--accent);
  transition: transform .3s;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item .faq-answer {
  padding: 14px 0 20px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  border-top: 1px dashed var(--line);
}

/* ===== CTA ===== */
.cta-section {
  padding: 84px 0;
  background-color: var(--bg-dark);
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  position: relative;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(38, 46, 40, .78);
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-family: var(--font-head);
  font-size: 36px;
  color: #fff;
  margin: 0 0 14px;
  line-height: 1.3;
}

.cta-inner p {
  color: rgba(255, 255, 255, .8);
  font-size: 16px;
  margin: 0 0 30px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, .78);
  padding: 64px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer-brand {
  margin-bottom: 14px;
}

.footer-brand .brand-mark {
  background: var(--accent);
}

.footer-brand .brand-text {
  color: #fff;
}

.footer-about p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .6);
  margin: 0;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-family: var(--font-head);
  margin: 0 0 16px;
  font-weight: 700;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col ul li {
  margin-bottom: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
}

.footer-col ul a {
  color: rgba(255, 255, 255, .65);
  text-decoration: none;
  transition: color .2s, padding-left .2s;
}

.footer-col ul a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-col ul li span {
  color: rgba(255, 255, 255, .35);
}

.footer-bottom {
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, .42);
}

.footer-bottom p {
  margin: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .header-shell {
    gap: 14px;
    padding-left: 14px;
  }

  .brand-text {
    font-size: 18px;
  }

  .nav-link {
    padding: 8px 12px;
    font-size: 14px;
  }

  .related-grid,
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .header-shell {
    flex-wrap: wrap;
    padding: 14px;
  }

  .site-nav {
    order: 3;
    flex-basis: 100%;
    display: none;
    flex-direction: column;
    gap: 6px;
    padding-top: 14px;
    border-top: 1px dashed var(--line);
    margin-top: 12px;
  }

  .site-nav.open {
    display: flex;
  }

  .nav-link {
    width: 100%;
    text-align: center;
  }

  .header-actions {
    margin-left: auto;
  }

  .header-actions .btn {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .article-hero {
    padding: 68px 0 52px;
  }

  .article-hero h1 {
    font-size: 30px;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-side {
    position: static;
  }

  .related-grid,
  .steps-grid {
    grid-template-columns: 1fr;
  }

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

  .cta-inner h2 {
    font-size: 28px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .header-shell {
    padding: 10px;
  }

  .brand-text {
    font-size: 15px;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 18px;
    border-radius: 10px;
  }

  .article-hero h1 {
    font-size: 24px;
  }

  .article-body {
    padding: 20px 16px;
  }

  .section-head h2,
  .cta-inner h2 {
    font-size: 26px;
  }

  .article-nav-links .btn {
    flex: 1;
  }

  .related-img {
    height: 180px;
  }

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

/* roulang page: category2 */
:root {
  --color-primary: #B8502E;
  --color-primary-dark: #96402A;
  --color-secondary: #4A6A53;
  --color-accent: #D9A441;
  --color-bg: #F0E8DC;
  --color-surface: #FFFBF3;
  --color-dark: #2B2620;
  --color-text: #3D352C;
  --color-muted: #857A6B;
  --color-border: #2B2620;
  --color-line: rgba(43, 38, 32, 0.14);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 3px 3px 0 rgba(43, 38, 32, 0.1);
  --shadow-md: 6px 6px 0 rgba(43, 38, 32, 0.1);
  --shadow-lg: 12px 12px 0 rgba(43, 38, 32, 0.08);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --container: 1200px;
  --gap: 24px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-md);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

ul, ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
  outline: none;
}

button {
  cursor: pointer;
}

.container {
  width: min(var(--container), 92%);
  margin: 0 auto;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  box-shadow: 0 4px 20px rgba(43, 38, 32, 0.06);
}

.header-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  box-shadow: 3px 3px 0 rgba(43, 38, 32, 0.14);
}

.brand-text {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.5px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 6px;
}

.nav-link {
  display: inline-block;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  border: 2px solid transparent;
  transition: all 0.25s ease;
}

.nav-link:hover {
  color: var(--color-primary);
  background: var(--color-surface);
}

.nav-link.active {
  background: var(--color-dark);
  color: #fff;
  border-color: var(--color-border);
  box-shadow: 2px 2px 0 rgba(43, 38, 32, 0.2);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 700;
  border: 2px solid var(--color-border);
  transition: all 0.25s ease;
  box-shadow: 4px 4px 0 rgba(43, 38, 32, 0.12);
}

.btn:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(43, 38, 32, 0.12);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-dark);
}

.btn-accent:hover {
  background: #C5923A;
}

.btn-dark {
  background: var(--color-dark);
  color: #fff;
}

.btn-dark:hover {
  background: #3A332B;
}

.btn-outline {
  background: transparent;
  color: var(--color-dark);
}

.btn-outline:hover {
  background: var(--color-bg);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
  border-width: 2px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 88px 0 72px;
  background: linear-gradient(120deg, var(--color-dark) 0%, #38302A 55%, #4D3D32 100%);
  border-bottom: 3px solid var(--color-border);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  mix-blend-mode: luminosity;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 16px;
}

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

.breadcrumb .sep {
  opacity: 0.5;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.2;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.page-hero .lead {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  margin-bottom: 28px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
}

/* ===== Section common ===== */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--color-surface);
  border-top: 2px solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  background: rgba(184, 80, 46, 0.1);
  padding: 4px 14px;
  border-radius: 50px;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.25;
  color: var(--color-dark);
  margin-bottom: 14px;
}

.section-head p {
  color: var(--color-muted);
  font-size: 16px;
}

/* ===== Quick guide cards ===== */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.quick-card {
  position: relative;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 24px 24px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.quick-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 rgba(43, 38, 32, 0.12);
}

.quick-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  font-size: 28px;
  margin-bottom: 18px;
  transition: background 0.3s ease;
}

.quick-card:hover .quick-icon {
  background: var(--color-accent);
}

.quick-card h3 {
  font-size: 18px;
  color: var(--color-dark);
  margin-bottom: 10px;
  font-family: var(--font-serif);
}

.quick-card p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.quick-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
}

.quick-link:hover {
  color: var(--color-primary-dark);
}

.quick-link .arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.quick-link:hover .arrow {
  transform: translateX(4px);
}

/* ===== Steps section ===== */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.steps-visual {
  position: relative;
}

.steps-visual .img-main {
  border-radius: var(--radius-lg);
  border: 3px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.steps-visual .sticker {
  position: absolute;
  bottom: -18px;
  right: -14px;
  background: var(--color-accent);
  color: var(--color-dark);
  font-weight: 700;
  font-size: 14px;
  padding: 8px 18px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: 4px 4px 0 rgba(43, 38, 32, 0.14);
  transform: rotate(-3deg);
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  counter-reset: step;
}

.step-item {
  display: flex;
  gap: 16px;
  counter-increment: step;
}

.step-num {
  flex: 0 0 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-dark);
  color: #fff;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 18px;
  box-shadow: 3px 3px 0 rgba(43, 38, 32, 0.12);
}

.step-body h3 {
  font-size: 18px;
  color: var(--color-dark);
  margin-bottom: 4px;
  font-family: var(--font-serif);
}

.step-body p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ===== Scenario section ===== */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scenario-card {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
}

.scenario-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.scenario-card .card-img {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.scenario-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: transform 0.4s ease;
}

.scenario-card:hover .card-img img {
  transform: scale(1.05);
}

.card-img .cover-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--color-accent);
  color: var(--color-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  border: 2px solid var(--color-border);
}

.scenario-card .card-body {
  padding: 26px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.scenario-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--color-dark);
}

.scenario-card p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  flex: 1;
}

.scenario-card .card-more {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
}

.scenario-card .card-more:hover {
  color: var(--color-primary-dark);
}

/* ===== Tips section ===== */
.tips-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.tips-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tip-item {
  display: flex;
  gap: 14px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
}

.tip-badge {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 15px;
  background: var(--color-primary);
  color: #fff;
  border: 2px solid var(--color-border);
}

.tip-item h4 {
  font-size: 15px;
  color: var(--color-dark);
  margin-bottom: 2px;
}

.tip-item p {
  font-size: 13px;
  color: var(--color-muted);
}

.tips-visual {
  position: relative;
}

.tips-visual img {
  border-radius: var(--radius-lg);
  border: 3px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.tips-quote {
  position: absolute;
  bottom: -16px;
  left: 18px;
  right: 18px;
  background: var(--color-dark);
  color: #fff;
  font-size: 13px;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-border);
  text-align: center;
  box-shadow: var(--shadow-md);
}

/* ===== Update / news list ===== */
.update-list {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.update-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 26px;
  border-bottom: 1px solid var(--color-line);
  transition: background 0.2s ease;
}

.update-item:last-child {
  border-bottom: none;
}

.update-item:hover {
  background: var(--color-bg);
}

.update-date {
  flex: 0 0 80px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-serif);
}

.update-title {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-dark);
}

.update-title:hover {
  color: var(--color-primary);
}

.update-cat {
  flex: 0 0 auto;
  font-size: 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: 50px;
  padding: 4px 12px;
  color: var(--color-muted);
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-dark);
  text-align: left;
  transition: background 0.2s ease;
}

.faq-q:hover {
  background: var(--color-bg);
}

.faq-q .faq-icon {
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  font-size: 16px;
  line-height: 1;
  transition: transform 0.3s ease, background 0.3s ease;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
  padding-top: 14px;
  margin-left: 24px;
  margin-right: 24px;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--color-accent);
}

/* ===== CTA ===== */
.cta-section {
  padding: 72px 0;
  background: var(--color-dark);
  border-top: 3px solid var(--color-border);
  position: relative;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
}

.cta-box {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-box h2 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3.2vw, 38px);
  color: #fff;
  margin-bottom: 14px;
}

.cta-box p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 28px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 0;
  border-top: 3px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  margin-bottom: 14px;
}

.footer-brand .brand-mark {
  background: var(--color-accent);
  color: var(--color-dark);
}

.footer-brand .brand-text {
  color: #fff;
}

.footer-about p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  max-width: 360px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
  font-family: var(--font-serif);
}

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

.footer-col ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

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

.footer-col ul li {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

.footer-col ul li span {
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 18px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid,
  .tips-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .steps-visual,
  .tips-visual {
    max-width: 560px;
    margin: 0 auto;
  }

  .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .header-shell {
    padding: 14px 0;
  }

  .site-nav {
    position: fixed;
    top: 76px;
    left: 4%;
    right: 4%;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    flex-direction: column;
    padding: 16px;
    display: none;
    border: 2px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    z-index: 99;
  }

  .site-nav.open {
    display: flex;
  }

  .nav-link {
    width: 100%;
    text-align: center;
    padding: 12px 18px;
  }

  .header-actions .btn-sm {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .section {
    padding: 56px 0;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .page-hero {
    padding: 56px 0 48px;
  }

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

  .update-item {
    flex-wrap: wrap;
    gap: 8px;
    padding: 14px 16px;
  }

  .update-date {
    flex: 0 0 70px;
  }

  .update-cat {
    margin-left: auto;
  }

  .faq-q {
    padding: 16px 16px;
    font-size: 15px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

@media (max-width: 520px) {
  .brand-text {
    font-size: 15px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 16px;
  }

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

  .page-hero .lead {
    font-size: 15px;
  }

  .hero-tags {
    gap: 6px;
  }

  .tag {
    padding: 4px 10px;
    font-size: 12px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .tip-item {
    padding: 14px;
  }
}

/* ===== Print ===== */
@media print {
  .site-header,
  .site-footer,
  .cta-section {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  .section-alt {
    border: none;
  }
}

/* roulang page: category3 */
/* ===================== 设计变量 ===================== */
:root {
    --primary: #6B4C2A;
    --primary-dark: #3E2B1A;
    --primary-light: #A0784E;
    --accent: #C45D42;
    --accent-hover: #A94A32;
    --accent-soft: #E8A87C;
    --bg: #F7F1E5;
    --bg-alt: #EFE6D5;
    --bg-dark: #2B211B;
    --bg-card: #FFFDF8;
    --text: #2B211B;
    --text-muted: #7C6B58;
    --text-light: #B5A38D;
    --border: #DCCDB2;
    --border-dark: #B8A684;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(59, 42, 30, 0.06);
    --shadow-hover: 0 10px 36px rgba(59, 42, 30, 0.12);
    --shadow-dark: 0 6px 30px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
    --font-display: Georgia, "Noto Serif SC", "Songti SC", "SimSun", serif;
    --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
}

/* ===================== 基础重置 ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }
input, textarea { font-family: inherit; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }

/* ===================== 导航头部 ===================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: linear-gradient(135deg, #3A2A1C 0%, #2B211B 100%);
    border-bottom: 3px solid var(--accent);
    box-shadow: var(--shadow-dark);
    padding: 0;
}
.header-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    gap: 24px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.brand-mark {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 700;
    color: #FFF;
    background: var(--accent);
    border-radius: 50% 45% 55% 48%;
    box-shadow: inset 0 -2px 6px rgba(0,0,0,0.25), 0 2px 8px rgba(0,0,0,0.3);
}
.brand-text {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    color: #F2E8D8;
    letter-spacing: 1px;
    white-space: nowrap;
}
.site-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 44px;
    padding: 5px 10px;
    backdrop-filter: blur(8px);
}
.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    border-radius: 32px;
    font-size: 14px;
    font-weight: 500;
    color: #C9BFA8;
    transition: var(--transition);
    border: 1px solid transparent;
}
.nav-link:hover {
    color: #FFF;
    background: rgba(255, 255, 255, 0.1);
}
.nav-link.active {
    color: #FFF;
    background: var(--accent);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 4px 14px rgba(196, 93, 66, 0.35);
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    padding: 11px 24px;
    border-radius: 32px;
    border: 2px solid transparent;
    transition: var(--transition);
    line-height: 1.4;
    white-space: nowrap;
}
.btn-sm {
    padding: 8px 18px;
    font-size: 13px;
}
.btn-accent {
    background: var(--accent);
    color: #FFF;
    box-shadow: 0 4px 16px rgba(196, 93, 66, 0.3);
}
.btn-accent:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(196, 93, 66, 0.4);
}
.btn-accent:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(196, 93, 66, 0.3);
}
.btn-ghost {
    background: transparent;
    border-color: var(--primary-light);
    color: var(--primary);
}
.btn-ghost:hover {
    background: var(--primary);
    color: #FFF;
    border-color: var(--primary);
}
.btn-outline-light {
    background: transparent;
    border-color: rgba(255,255,255,0.5);
    color: #FFF;
}
.btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    border-color: #FFF;
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 40px;
    height: 36px;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(255,255,255,0.08);
}
.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: #F2E8D8;
    border-radius: 2px;
    transition: var(--transition);
}

/* ===================== 页头横幅 ===================== */
.page-banner {
    position: relative;
    padding: 100px 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    color: #FFF;
    text-align: center;
    border-bottom: 4px solid var(--accent);
}
.page-banner::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(43, 33, 27, 0.82) 0%, rgba(59, 42, 30, 0.6) 100%);
}
.page-banner .container {
    position: relative;
    z-index: 1;
}
.page-banner .banner-ornament {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    color: var(--accent-soft);
    font-size: 13px;
    letter-spacing: 4px;
    text-transform: uppercase;
}
.page-banner .banner-ornament::before,
.page-banner .banner-ornament::after {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background: rgba(255,255,255,0.3);
}
.page-banner h1 {
    font-family: var(--font-display);
    font-size: 44px;
    font-weight: 700;
    margin-bottom: 18px;
    letter-spacing: 2px;
    line-height: 1.3;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.page-banner p {
    font-size: 16px;
    max-width: 640px;
    margin: 0 auto;
    color: rgba(255,255,255,0.85);
    line-height: 1.8;
}
.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
}
.breadcrumb a { color: rgba(255,255,255,0.8); }
.breadcrumb a:hover { color: var(--accent-soft); }

/* ===================== 板块标题 ===================== */
.section-head {
    text-align: center;
    margin-bottom: 48px;
}
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--accent);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 14px;
}
.section-tag::before,
.section-tag::after {
    content: '';
    display: block;
    width: 28px;
    height: 1px;
    background: var(--border-dark);
}
.section-head h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 12px;
    line-height: 1.3;
}
.section-head p {
    font-size: 15px;
    color: var(--text-muted);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===================== 资讯列表卡片 ===================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.news-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    border-top: 4px solid var(--accent);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    box-shadow: var(--shadow);
}
.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--border-dark);
}
.news-card .card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}
.news-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.news-card:hover .card-image img {
    transform: scale(1.06);
}
.news-card .card-image::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.2) 100%);
}
.card-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 2;
    display: inline-block;
    padding: 4px 14px;
    background: rgba(43, 33, 27, 0.85);
    color: #FFF;
    font-size: 12px;
    font-weight: 500;
    border-radius: 20px;
    letter-spacing: 1px;
    backdrop-filter: blur(4px);
}
.card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.card-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.card-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.card-meta .meta-item i {
    font-size: 11px;
    color: var(--accent-soft);
}
.card-body h3 {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 10px;
    color: var(--text);
}
.card-body h3 a:hover {
    color: var(--accent);
}
.card-body p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 18px;
    flex: 1;
}
.card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
}
.card-link:hover {
    color: var(--accent-hover);
    gap: 10px;
}
.card-link i {
    font-size: 12px;
    transition: transform 0.3s;
}

/* ===================== 资讯分类标签 ===================== */
.tag-section {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.tag-panel {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-top: 36px;
}
.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 36px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    transition: var(--transition);
    box-shadow: var(--shadow);
}
.tag-chip:hover {
    background: var(--primary);
    color: #FFF;
    border-color: var(--primary);
    transform: translateY(-2px);
}
.tag-chip .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}
.tag-chip:hover .dot { background: #FFF; }

/* ===================== 精选内容 ===================== */
.featured-card {
    display: flex;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    transition: var(--transition);
}
.featured-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}
.featured-card .featured-image {
    flex: 0 0 280px;
    min-height: 220px;
    background-size: cover;
    background-position: center;
    position: relative;
}
.featured-card .featured-image::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(90deg, transparent 60%, rgba(43,33,27,0.15) 100%);
}
.featured-card .featured-content {
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1;
}
.featured-card .featured-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
}
.featured-card h3 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
}
.featured-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 18px;
}
.featured-card .btn {
    align-self: flex-start;
}
.featured-card:nth-child(even) .featured-image {
    order: 2;
}
.featured-card:nth-child(even) .featured-image::after {
    background: linear-gradient(270deg, transparent 60%, rgba(43,33,27,0.15) 100%);
}

/* ===================== 时间线 ===================== */
.timeline-wrap {
    position: relative;
    max-width: 720px;
    margin: 0 auto;
    padding: 20px 0;
}
.timeline-wrap::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, transparent, var(--border-dark) 20%, var(--border-dark) 80%, transparent);
    transform: translateX(-50%);
}
.timeline-item {
    position: relative;
    width: 50%;
    padding: 0 40px 40px 0;
    text-align: right;
}
.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding: 0 0 40px 40px;
    text-align: left;
}
.timeline-item::before {
    content: '';
    position: absolute;
    top: 24px;
    right: -8px;
    width: 16px;
    height: 16px;
    background: var(--accent);
    border: 3px solid var(--bg);
    border-radius: 50%;
    box-shadow: 0 0 0 3px var(--border-dark);
}
.timeline-item:nth-child(even)::before {
    right: auto;
    left: -8px;
}
.timeline-item .t-month {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 6px;
}
.timeline-item .t-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    line-height: 1.4;
}
.timeline-item .t-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===================== FAQ ===================== */
.faq-list {
    max-width: 780px;
    margin: 0 auto;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
}
.faq-item:hover {
    border-color: var(--border-dark);
}
.faq-item .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    transition: var(--transition);
    background: none;
    width: 100%;
    text-align: left;
}
.faq-item .faq-question:hover {
    color: var(--accent);
}
.faq-item .faq-icon {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--border-dark);
    color: var(--primary-light);
    font-size: 14px;
    transition: var(--transition);
    line-height: 1;
}
.faq-item.active .faq-icon {
    background: var(--accent);
    border-color: var(--accent);
    color: #FFF;
    transform: rotate(45deg);
}
.faq-item .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    padding: 0 24px;
}
.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 20px;
}
.faq-item .faq-answer p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-muted);
    border-top: 1px dashed var(--border);
    padding-top: 14px;
}

/* ===================== CTA ===================== */
.cta-section {
    background: linear-gradient(135deg, var(--bg-dark) 0%, #3A2A1C 100%);
    color: #FFF;
    padding: 72px 0;
    text-align: center;
    border-top: 3px solid var(--accent);
}
.cta-section h2 {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 14px;
    color: #F2E8D8;
}
.cta-section p {
    font-size: 15px;
    color: rgba(255,255,255,0.7);
    max-width: 520px;
    margin: 0 auto 32px;
    line-height: 1.8;
}
.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ===================== 页脚 ===================== */
.site-footer {
    background: var(--bg-dark);
    color: #C9BFA8;
    padding: 64px 0 32px;
    border-top: 4px solid var(--accent);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}
.footer-brand .brand-mark {
    width: 38px;
    height: 38px;
    font-size: 18px;
}
.footer-brand .brand-text {
    font-size: 16px;
    white-space: normal;
}
.footer-about p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255,255,255,0.55);
    max-width: 320px;
}
.footer-col h4 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    color: #F2E8D8;
    margin-bottom: 18px;
    letter-spacing: 1px;
}
.footer-col ul li {
    margin-bottom: 10px;
    font-size: 14px;
}
.footer-col ul li a {
    color: rgba(255,255,255,0.6);
}
.footer-col ul li a:hover {
    color: var(--accent-soft);
    padding-left: 4px;
}
.footer-col ul li span {
    color: rgba(255,255,255,0.35);
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 24px;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

/* ===================== 响应式断点 ===================== */
@media (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .featured-card .featured-image {
        flex-basis: 220px;
    }
    .header-shell {
        flex-wrap: wrap;
        padding: 12px 0;
    }
    .site-nav {
        order: 3;
        width: 100%;
        justify-content: center;
        border-radius: 12px;
        gap: 4px;
        flex-wrap: wrap;
    }
    .nav-link {
        padding: 8px 14px;
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .section { padding: 56px 0; }
    .page-banner { padding: 72px 0; }
    .page-banner h1 { font-size: 32px; }
    .section-head h2 { font-size: 26px; }
    .news-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .featured-card {
        flex-direction: column;
    }
    .featured-card .featured-image {
        flex: 0 0 180px;
        min-height: 180px;
    }
    .featured-card:nth-child(even) .featured-image {
        order: 0;
    }
    .featured-card .featured-content {
        padding: 24px;
    }
    .timeline-wrap::before {
        left: 12px;
        transform: none;
    }
    .timeline-item,
    .timeline-item:nth-child(even) {
        width: 100%;
        margin-left: 0;
        padding: 0 0 32px 40px;
        text-align: left;
    }
    .timeline-item::before,
    .timeline-item:nth-child(even)::before {
        right: auto;
        left: 4px;
        top: 22px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .header-shell {
        flex-wrap: nowrap;
    }
    .site-nav {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: var(--bg-dark);
        border-radius: 0;
        padding: 20px 24px;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        border-bottom: 2px solid var(--accent);
        box-shadow: var(--shadow-dark);
        z-index: 99;
    }
    .site-nav.open {
        display: flex;
    }
    .nav-link {
        width: 100%;
        padding: 14px 16px;
        border-radius: 10px;
        font-size: 14px;
        color: #C9BFA8;
        border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .nav-link.active {
        background: var(--accent);
        color: #FFF;
    }
    .nav-toggle {
        display: flex;
    }
    .header-actions .btn {
        display: none;
    }
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 520px) {
    .page-banner h1 { font-size: 26px; }
    .section-head h2 { font-size: 22px; }
    .brand-text { font-size: 15px; }
    .brand-mark { width: 36px; height: 36px; font-size: 18px; }
    .container { padding: 0 16px; }
    .news-card .card-image { height: 170px; }
    .faq-item .faq-question { font-size: 14px; padding: 16px 18px; }
    .timeline-item .t-title { font-size: 16px; }
}