/* roulang page: index */
:root {
  --color-primary: #F4501E;
  --color-primary-hover: #FF6B3D;
  --color-primary-deep: #C73A12;
  --color-accent: #FFC94A;
  --color-bg: #F6F4EF;
  --color-bg-dark: #121417;
  --color-surface: #FFFFFF;
  --color-surface-dark: #1C1F23;
  --color-text: #22252A;
  --color-text-muted: #6B7076;
  --color-border: rgba(34,37,42,0.12);
  --color-border-dark: rgba(255,255,255,0.14);
  --radius-btn: 999px;
  --radius-card: 16px;
  --radius-img: 12px;
  --radius-input: 10px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.04), 0 12px 32px rgba(244,80,30,0.05);
  --shadow-dark: 0 12px 32px rgba(0,0,0,0.35);
  --shadow-dock: 0 10px 30px rgba(0,0,0,0.30);
  --container-w: 1200px;
  --section-pad: 96px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-num: "DIN Alternate", "Barlow Condensed", tabular-nums;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-main); font-size: 16px; line-height: 1.75; color: var(--color-text); background: var(--color-bg); }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; font-size: 15px; }
.container { width: 100%; max-width: var(--container-w); margin: 0 auto; padding: 0 20px; }
.section-space { padding: var(--section-pad) 0; }
.section-head { margin-bottom: 48px; }
.section-head h2 { font-size: 32px; font-weight: 800; line-height: 1.3; letter-spacing: 0.5px; }
.section-head__line { display: block; width: 28px; height: 4px; background: var(--color-primary); border-radius: 4px; margin-top: 14px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 28px; border-radius: var(--radius-btn); font-weight: 600; font-size: 15px; line-height: 1; transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s; }
.btn--primary { background: var(--color-primary); color: #fff; box-shadow: 0 6px 18px rgba(244,80,30,0.35); }
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(244,80,30,0.4); }
.btn--primary:focus-visible { outline: 3px solid rgba(244,80,30,0.4); outline-offset: 2px; }
.btn--ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.65); }
.btn--ghost:hover { background: rgba(255,255,255,0.08); transform: translateY(-2px); border-color: #fff; }
.btn--ghost:focus-visible { outline: 3px solid rgba(255,255,255,0.35); outline-offset: 2px; }

/* ===== Dock 导航 ===== */
.site-dock { position: fixed; top: 16px; left: 50%; transform: translateX(-50%); z-index: 1000; width: min(960px, calc(100% - 32px)); background: rgba(18,20,23,0.82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,0.10); border-radius: var(--radius-btn); box-shadow: var(--shadow-dock); padding: 6px 10px; }
.dock-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.dock-logo { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.dock-logo__icon { width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, var(--color-primary) 0%, #FF9A5C 100%); display: flex; align-items: center; justify-content: center; font-weight: 900; color: #fff; font-size: 18px; }
.dock-logo__text { font-weight: 700; font-size: 18px; color: #fff; letter-spacing: 0.5px; white-space: nowrap; }
.dock-nav { display: flex; align-items: center; gap: 4px; }
.dock-nav__link { display: inline-flex; align-items: center; gap: 6px; padding: 10px 18px; border-radius: var(--radius-btn); color: rgba(255,255,255,0.78); font-weight: 500; font-size: 15px; position: relative; transition: color 0.2s ease, background 0.2s ease; }
.dock-nav__link:hover { color: #fff; background: rgba(255,255,255,0.06); }
.dock-nav__link:hover::after { content: ''; position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%); width: 4px; height: 4px; border-radius: 50%; background: var(--color-primary); }
.dock-nav__link.is-active { color: #fff; font-weight: 700; }
.dock-nav__link.is-active::after { content: ''; position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%); width: 4px; height: 4px; border-radius: 50%; background: var(--color-primary); }
.dock-nav__icon { display: none; font-size: 16px; line-height: 1; }
.dock-cta { display: inline-flex; align-items: center; gap: 6px; padding: 10px 22px; background: var(--color-primary); color: #fff; border-radius: var(--radius-btn); font-weight: 600; font-size: 14px; transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease; white-space: nowrap; }
.dock-cta:hover { background: var(--color-primary-hover); transform: translateY(-2px); box-shadow: 0 6px 18px rgba(244,80,30,0.4); }
.dock-cta__icon { display: none; font-size: 16px; line-height: 1; }

/* ===== Hero ===== */
.hero { position: relative; min-height: 640px; display: flex; align-items: center; background-color: var(--color-bg-dark); overflow: hidden; }
.hero__bg, .hero__overlay { position: absolute; inset: 0; }
.hero__bg { background-size: cover; background-position: center 30%; }
.hero__overlay { background: linear-gradient(95deg, rgba(18,20,23,0.93) 0%, rgba(18,20,23,0.72) 55%, rgba(18,20,23,0.35) 100%); }
.hero__content { position: relative; z-index: 2; padding-top: 120px; padding-bottom: 80px; width: 100%; }
.hero h1 { color: #fff; font-size: 48px; font-weight: 900; line-height: 1.18; letter-spacing: 1px; margin-bottom: 18px; }
.hero__subtitle { color: rgba(255,255,255,0.82); font-size: 18px; font-weight: 400; margin-bottom: 36px; max-width: 520px; }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,201,74,0.14); border: 1px solid rgba(255,201,74,0.35); color: var(--color-accent); font-size: 13px; padding: 4px 14px; border-radius: var(--radius-btn); margin-bottom: 18px; font-weight: 500; }

/* ===== 能力条目 ===== */
.service-list { display: flex; flex-direction: column; border-top: 1px solid var(--color-border); }
.service-item { display: grid; grid-template-columns: 72px 56px 1fr 1.4fr; align-items: center; gap: 16px; padding: 28px 16px; border-bottom: 1px solid var(--color-border); transition: background 0.25s ease, transform 0.25s ease; }
.service-item:hover { background: rgba(244,80,30,0.04); transform: translateX(6px); }
.service-item__num { font-family: var(--font-num); font-size: 36px; font-weight: 900; color: var(--color-primary); opacity: 0.55; line-height: 1; }
.service-item__icon { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; color: var(--color-primary); background: rgba(244,80,30,0.08); border-radius: 10px; }
.service-item__icon svg { width: 22px; height: 22px; }
.service-item h3 { font-size: 20px; font-weight: 700; }
.service-item p { color: var(--color-text-muted); font-size: 15px; line-height: 1.6; }

/* ===== 优势数据 ===== */
.stats { background: var(--color-bg-dark); padding: 64px 0; position: relative; overflow: hidden; }
.stats::before { content: ''; position: absolute; width: 420px; height: 420px; background: radial-gradient(circle, rgba(244,80,30,0.22), transparent 70%); top: -80px; right: -60px; pointer-events: none; }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 1; }
.stat-item { text-align: center; padding: 20px 16px; border-right: 1px solid var(--color-border-dark); }
.stat-item:last-child { border-right: none; }
.stat-item__num { font-family: var(--font-num); font-size: 48px; font-weight: 900; color: var(--color-accent); line-height: 1.1; display: block; }
.stat-item__num em { font-style: normal; font-size: 18px; font-weight: 600; margin-left: 4px; }
.stat-item__label { display: block; color: rgba(255,255,255,0.65); font-size: 13px; letter-spacing: 1px; margin-top: 8px; }

/* ===== 案例横滑 ===== */
.cases { overflow: hidden; }
.cases__track { display: flex; gap: 24px; overflow-x: auto; padding: 8px 4px 24px; scrollbar-width: none; }
.cases__track::-webkit-scrollbar { display: none; }
.case-card { flex: 0 0 320px; background: var(--color-surface); border-radius: var(--radius-card); box-shadow: var(--shadow-card); padding: 16px; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.case-card:hover { transform: translateY(-4px); box-shadow: 0 6px 16px rgba(0,0,0,0.08), 0 18px 40px rgba(244,80,30,0.12); }
.case-card__cover { position: relative; height: 220px; border-radius: var(--radius-img); overflow: hidden; margin-bottom: 16px; background-color: #e8e4dc; }
.case-card__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease, opacity 0.3s ease; }
.case-card:hover .case-card__cover img { transform: scale(1.04); opacity: 0.95; }
.case-card__tag { position: absolute; top: 10px; left: 10px; background: rgba(18,20,23,0.78); color: var(--color-accent); font-size: 12px; padding: 4px 12px; border-radius: var(--radius-btn); font-weight: 500; backdrop-filter: blur(4px); }
.case-card h3 { font-size: 18px; font-weight: 700; line-height: 1.45; margin-bottom: 8px; }
.case-card p { color: var(--color-text-muted); font-size: 14px; line-height: 1.6; margin-bottom: 14px; }
.case-card__link { display: inline-flex; align-items: center; gap: 6px; color: var(--color-primary); font-size: 14px; font-weight: 600; transition: color 0.2s ease, gap 0.2s ease; }
.case-card__link:hover { color: var(--color-primary-hover); gap: 10px; }
.cases__fade { pointer-events: none; position: absolute; top: 0; bottom: 24px; width: 32px; z-index: 2; }
.cases__fade--left { left: 0; background: linear-gradient(to right, var(--color-bg), transparent); }
.cases__fade--right { right: 0; background: linear-gradient(to left, var(--color-bg), transparent); }
.cases-wrap { position: relative; }

/* ===== 解决方案 ===== */
.solution-row { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-bottom: 72px; }
.solution-row:last-child { margin-bottom: 0; }
.solution-row--reverse .solution-row__media { order: 2; }
.solution-row--reverse .solution-row__content { order: 1; }
.solution-row__media { border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); background: #e8e4dc; }
.solution-row__media img { width: 100%; height: 320px; object-fit: cover; transition: transform 0.4s ease; }
.solution-row__media:hover img { transform: scale(1.03); }
.solution-row__content h3 { font-size: 26px; font-weight: 800; line-height: 1.3; margin-bottom: 14px; }
.solution-row__content > p { color: var(--color-text-muted); font-size: 16px; line-height: 1.7; margin-bottom: 20px; }
.solution-points { list-style: none; margin: 0 0 28px; padding: 0; }
.solution-points li { display: flex; align-items: flex-start; gap: 10px; font-size: 15px; color: var(--color-text); padding: 6px 0; }
.solution-points li::before { content: '✓'; display: flex; align-items: center; justify-content: center; width: 20px; height: 20px; border-radius: 50%; background: rgba(244,80,30,0.1); color: var(--color-primary); font-size: 12px; font-weight: 700; margin-top: 3px; flex-shrink: 0; }
.solution-row__link { display: inline-flex; align-items: center; gap: 8px; color: var(--color-primary); font-weight: 600; font-size: 15px; transition: gap 0.2s ease, color 0.2s ease; }
.solution-row__link:hover { gap: 12px; color: var(--color-primary-hover); }

/* ===== 资讯区 ===== */
.news-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 24px; align-items: start; }
.news-grid__large { min-width: 0; }
.news-grid__small { min-width: 0; display: flex; flex-direction: column; gap: 24px; }
.news-item { display: block; background: var(--color-surface); border-radius: var(--radius-card); box-shadow: var(--shadow-card); overflow: hidden; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.news-item:hover { transform: translateY(-4px); box-shadow: 0 6px 16px rgba(0,0,0,0.06), 0 18px 40px rgba(244,80,30,0.10); }
.news-item--large .news-item__cover { height: 260px; }
.news-item--small { display: flex; gap: 16px; padding: 16px; }
.news-item--small .news-item__cover { width: 110px; height: 92px; flex-shrink: 0; }
.news-item__cover { background-size: cover; background-position: center; background-color: #e8e4dc; position: relative; }
.news-item__body { padding: 18px 20px; display: block; }
.news-item--small .news-item__body { padding: 4px 0; display: flex; flex-direction: column; }
.news-item__title { display: block; font-size: 18px; font-weight: 700; line-height: 1.45; color: var(--color-text); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.news-item--small .news-item__title { font-size: 15px; line-height: 1.4; -webkit-line-clamp: 2; }
.news-item__excerpt { display: block; color: var(--color-text-muted); font-size: 14px; line-height: 1.65; margin-top: 8px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; }
.news-item--small .news-item__excerpt { font-size: 13px; -webkit-line-clamp: 2; margin-top: 4px; }
.news-item__meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 12px; font-size: 13px; color: var(--color-text-muted); }
.news-item--small .news-item__meta { margin-top: auto; gap: 8px; }
.news-item__category { color: var(--color-primary); font-weight: 600; }
.news-item__link { display: inline-flex; align-items: center; gap: 4px; font-weight: 600; color: var(--color-primary); font-size: 13px; transition: gap 0.2s ease; }
.news-item__link:hover { gap: 8px; }
.news-empty { grid-column: 1 / -1; display: flex; align-items: center; justify-content: center; min-height: 220px; background: var(--color-surface); border-radius: var(--radius-card); border: 1px dashed var(--color-border); color: var(--color-text-muted); font-size: 15px; }
.news-empty::before { content: ''; width: 20px; height: 20px; border: 2px solid var(--color-border); border-top-color: var(--color-primary); border-radius: 50%; margin-right: 10px; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== FAQ ===== */
.faq-list { max-width: 860px; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-card); margin-bottom: 12px; overflow: hidden; transition: border-color 0.2s ease, background 0.2s ease; }
.faq-item.is-open { border-color: rgba(244,80,30,0.3); background: rgba(244,80,30,0.02); }
.faq-item__question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 20px; text-align: left; font-size: 16px; font-weight: 600; color: var(--color-text); background: var(--color-surface); transition: color 0.2s ease; }
.faq-item.is-open .faq-item__question { color: var(--color-primary); }
.faq-item__question:hover { color: var(--color-primary); }
.faq-item__icon { width: 24px; height: 24px; border-radius: 50%; border: 2px solid currentColor; display: flex; align-items: center; justify-content: center; font-size: 16px; line-height: 1; position: relative; transition: transform 0.3s ease, background 0.3s ease, color 0.3s; flex-shrink: 0; }
.faq-item.is-open .faq-item__icon { transform: rotate(45deg); background: rgba(244,80,30,0.1); }
.faq-item__icon::before { content: ''; width: 10px; height: 2px; background: currentColor; position: absolute; }
.faq-item__icon::after { content: ''; width: 2px; height: 10px; background: currentColor; position: absolute; }
.faq-item__answer { display: none; padding: 0 20px 20px; color: var(--color-text-muted); font-size: 15px; line-height: 1.75; }
.faq-item.is-open .faq-item__answer { display: block; }

/* ===== 联系区 ===== */
.contact { background: var(--color-bg-dark); padding: 80px 0; position: relative; overflow: hidden; }
.contact__bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.webp'); background-size: cover; background-position: center; opacity: 0.35; }
.contact::after { content: ''; position: absolute; inset: 0; background: rgba(18,20,23,0.72); }
.contact__inner { position: relative; z-index: 2; }
.contact .container { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact__info h2 { font-size: 32px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.contact__info > p { color: rgba(255,255,255,0.7); font-size: 15px; line-height: 1.7; margin-bottom: 28px; }
.contact__list { list-style: none; margin: 0; padding: 0; }
.contact__list li { display: flex; align-items: center; gap: 14px; color: rgba(255,255,255,0.82); font-size: 16px; padding: 10px 0; }
.contact__list li svg { width: 20px; height: 20px; color: var(--color-accent); flex-shrink: 0; }
.contact-form { display: grid; gap: 16px; }
.contact-form__input, .contact-form__textarea { width: 100%; background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.16); border-radius: var(--radius-input); padding: 14px 16px; color: #fff; transition: border-color 0.2s ease, background 0.2s ease; }
.contact-form__input::placeholder, .contact-form__textarea::placeholder { color: rgba(255,255,255,0.45); }
.contact-form__input:focus, .contact-form__textarea:focus { outline: none; border-color: var(--color-primary); background: rgba(255,255,255,0.08); }
.contact-form__textarea { height: 120px; resize: vertical; }
.contact-form__submit { justify-self: start; padding: 14px 40px; }
.contact-form__submit:hover { transform: translateY(-2px); }
.contact-form__submit:focus-visible { outline: 3px solid rgba(244,80,30,0.5); outline-offset: 2px; }

/* ===== 页脚 ===== */
.footer { background: var(--color-bg-dark); padding: 56px 0 32px; border-top: 1px solid rgba(255,255,255,0.06); }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 0.6fr; gap: 40px; align-items: start; }
.footer__brand .footer__logo { display: flex; align-items: center; gap: 8px; color: #fff; font-weight: 800; font-size: 20px; margin-bottom: 12px; }
.footer__brand .footer__logo svg { width: 26px; height: 26px; }
.footer__brand p { color: rgba(255,255,255,0.6); font-size: 14px; line-height: 1.7; max-width: 260px; }
.footer__nav { display: flex; flex-direction: column; gap: 8px; }
.footer__nav a { color: rgba(255,255,255,0.72); font-size: 14px; padding: 4px 0; transition: color 0.2s ease, transform 0.2s ease; }
.footer__nav a:hover { color: var(--color-primary-hover); transform: translateX(4px); }
.footer__top { text-align: right; }
.back-to-top { display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: var(--radius-btn); border: 1px solid rgba(255,255,255,0.18); color: rgba(255,255,255,0.7); font-size: 13px; background: rgba(255,255,255,0.04); transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease; }
.back-to-top:hover { color: var(--color-primary-hover); border-color: rgba(244,80,30,0.5); transform: translateY(-2px); }
.footer__copyright { text-align: center; color: rgba(255,255,255,0.45); font-size: 13px; margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.06); }
.footer__copyright a { color: rgba(255,255,255,0.55); transition: color 0.2s ease; }
.footer__copyright a:hover { color: var(--color-primary-hover); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root { --section-pad: 64px; }
  .hero h1 { font-size: 40px; }
  .solution-row { gap: 32px; }
  .news-grid { grid-template-columns: 1fr; }
  .news-grid__small { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .news-item--large .news-item__cover { height: 240px; }
  .contact .container { gap: 32px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__top { grid-column: 1 / -1; text-align: left; }
}
@media (max-width: 768px) {
  :root { --section-pad: 48px; }
  .site-dock { top: auto; bottom: 12px; left: 2%; transform: none; width: 96%; height: 62px; border-radius: 24px; padding: 6px 8px; }
  .dock-inner { justify-content: center; }
  .dock-logo { display: none; }
  .dock-nav { flex: 1; justify-content: space-between; gap: 0; }
  .dock-nav__link { flex-direction: column; gap: 2px; font-size: 11px; padding: 6px 10px; border-radius: 14px; }
  .dock-nav__icon { display: inline-block; width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; font-size: 16px; }
  .dock-nav__link.is-active::after, .dock-nav__link:hover::after { bottom: 0; top: auto; width: 18px; height: 3px; border-radius: 3px; }
  .dock-cta { flex-direction: column; gap: 2px; padding: 6px 10px; background: transparent; font-size: 11px; }
  .dock-cta__icon { display: inline-block; width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; font-size: 16px; }
  .hero { min-height: 520px; }
  .hero h1 { font-size: 32px; }
  .hero__subtitle { font-size: 16px; }
  .service-item { grid-template-columns: 48px 40px 1fr; gap: 12px; padding: 20px 8px; }
  .service-item p { grid-column: 3 / -1; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: none; border-bottom: 1px solid var(--color-border-dark); }
  .stat-item:nth-child(odd) { border-right: 1px solid var(--color-border-dark); }
  .stat-item:nth-child(n+3) { border-bottom: none; }
  .stat-item__num { font-size: 36px; }
  .solution-row { grid-template-columns: 1fr; gap: 24px; }
  .solution-row--reverse .solution-row__media { order: 0; }
  .solution-row__media img { height: 240px; }
  .news-item--large .news-item__cover { height: 200px; }
  .news-item--small { width: 100%; }
  .news-grid__small { grid-template-columns: 1fr; }
  .contact .container { grid-template-columns: 1fr; }
  .contact-form__submit { width: 100%; justify-self: stretch; }
  .footer__grid { grid-template-columns: 1fr; gap: 28px; }
  .footer__top { grid-column: 1; text-align: left; }
  .section-head { margin-bottom: 32px; }
  .section-head h2 { font-size: 26px; }
}
@media (max-width: 480px) {
  :root { padding: 0; }
  .container { padding: 0 16px; }
  .hero h1 { font-size: 28px; }
  .hero__subtitle { font-size: 15px; }
  .case-card { flex-basis: 260px; }
  .case-card__cover { height: 180px; }
  .service-item__num { font-size: 28px; }
  .solution-row__content h3 { font-size: 22px; }
  .news-item--large .news-item__cover { height: 160px; }
  .faq-item__question { font-size: 15px; padding: 14px 16px; }
  .faq-item__answer { padding: 0 16px 16px; }
  .btn { padding: 12px 22px; }
  .hero__actions { flex-direction: column; width: 100%; }
  .hero__actions .btn { width: 100%; }
}

/* roulang page: article */
:root {
  --color-primary: #F4501E;
  --color-primary-hover: #FF6B3D;
  --color-primary-deep: #C73A12;
  --color-accent: #FFC94A;
  --color-bg: #F6F4EF;
  --color-bg-dark: #121417;
  --color-surface: #FFFFFF;
  --color-surface-dark: #1C1F23;
  --color-text: #22252A;
  --color-text-muted: #6B7076;
  --color-border: rgba(34, 37, 42, 0.12);
  --color-border-dark: rgba(255, 255, 255, 0.14);
  --radius-btn: 999px;
  --radius-card: 16px;
  --radius-img: 12px;
  --radius-input: 10px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04), 0 12px 32px rgba(244, 80, 30, 0.05);
  --shadow-card-dark: 0 12px 32px rgba(0, 0, 0, 0.35);
  --shadow-dock: 0 10px 30px rgba(0, 0, 0, 0.30);
  --container: 1200px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-num: "DIN Alternate", "Barlow Condensed", tabular-nums;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-img); }
a { color: inherit; text-decoration: none; transition: color 0.25s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; font-size: 14px; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(244, 80, 30, 0.4);
  outline-offset: 2px;
}
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(34, 37, 42, 0.18); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(34, 37, 42, 0.3); }

/* ===== Dock Navigation ===== */
.site-dock {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: calc(100% - 40px);
  max-width: 960px;
  background: rgba(18, 20, 23, 0.82);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-btn);
  box-shadow: var(--shadow-dock);
}
.dock-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 6px 10px;
  gap: 8px;
}
.dock-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  border-radius: var(--radius-btn);
  transition: background 0.25s ease;
  flex-shrink: 0;
}
.dock-logo:hover { background: rgba(255, 255, 255, 0.06); }
.dock-logo__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep));
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  border-radius: 10px;
}
.dock-logo__text { color: #fff; font-size: 16px; font-weight: 700; letter-spacing: 0.5px; white-space: nowrap; }
.dock-nav { display: flex; align-items: center; gap: 4px; }
.dock-nav__link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-btn);
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  font-weight: 500;
  position: relative;
  transition: color 0.25s ease, background 0.25s ease;
}
.dock-nav__link:hover { color: #fff; background: rgba(255, 255, 255, 0.06); }
.dock-nav__link:hover::after, .dock-nav__link.is-active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 50%;
}
.dock-nav__link.is-active { color: #fff; font-weight: 700; }
.dock-nav__icon { font-size: 14px; line-height: 1; }
.dock-cta {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: var(--color-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  transition: background 0.25s ease, transform 0.25s ease;
  flex-shrink: 0;
}
.dock-cta:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.dock-cta__icon { font-size: 13px; }

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding-top: 110px;
  padding-bottom: 20px;
  background: var(--color-bg);
}
.breadcrumb__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.breadcrumb__inner a { color: var(--color-text-muted); transition: color 0.2s ease; }
.breadcrumb__inner a:hover { color: var(--color-primary); }
.breadcrumb__sep { color: rgba(34, 37, 42, 0.3); margin: 0 2px; }

/* ===== Article Main ===== */
.article-wrap { background: var(--color-bg); padding-bottom: 80px; }
.article-main {
  max-width: 820px;
  margin: 0 auto;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 48px 56px;
}
.article-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}
.article-category {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(244, 80, 30, 0.08);
  padding: 4px 14px;
  border-radius: var(--radius-btn);
  margin-bottom: 14px;
}
.article-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 16px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.article-meta__item { display: flex; align-items: center; gap: 5px; }
.article-meta__item svg { width: 14px; height: 14px; opacity: 0.6; }
.article-body {
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
}
.article-body h1, .article-body h2, .article-body h3, .article-body h4 {
  font-weight: 700;
  line-height: 1.35;
  margin: 1.6em 0 0.6em;
  color: var(--color-text);
}
.article-body h1 { font-size: 28px; }
.article-body h2 { font-size: 24px; }
.article-body h3 { font-size: 20px; }
.article-body h4 { font-size: 17px; }
.article-body p { margin-bottom: 1.2em; }
.article-body ul, .article-body ol { margin: 0 0 1.2em 1.5em; }
.article-body li { margin-bottom: 0.4em; }
.article-body blockquote {
  border-left: 4px solid var(--color-primary);
  background: rgba(244, 80, 30, 0.04);
  padding: 12px 20px;
  border-radius: 0 10px 10px 0;
  margin: 1.4em 0;
  color: var(--color-text-muted);
  font-style: normal;
}
.article-body img { margin: 1.6em 0; border-radius: var(--radius-img); }
.article-body a { color: var(--color-primary); border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.article-body a:hover { border-bottom-color: var(--color-primary); }
.article-body code {
  background: rgba(34, 37, 42, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
  font-family: "SF Mono", "Consolas", monospace;
}

/* ===== Tags ===== */
.article-tags {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.article-tags__label { font-size: 13px; color: var(--color-text-muted); }
.article-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--color-text-muted);
  background: rgba(34, 37, 42, 0.04);
  padding: 4px 14px;
  border-radius: var(--radius-btn);
  transition: color 0.2s ease, background 0.2s ease;
}
.article-tag:hover { color: var(--color-primary); background: rgba(244, 80, 30, 0.08); }

/* ===== Related ===== */
.related { margin-top: 48px; }
.related__title {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.related__title::before {
  content: '';
  width: 28px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
}
.related__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.related-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: rgba(244, 80, 30, 0.2); }
.related-card__img { aspect-ratio: 16 / 10; background: linear-gradient(135deg, rgba(244, 80, 30, 0.1), rgba(34, 37, 42, 0.1)); }
.related-card__img img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
.related-card__body { padding: 16px 18px 20px; }
.related-card__cat { font-size: 12px; font-weight: 600; color: var(--color-primary); margin-bottom: 6px; }
.related-card__title { font-size: 15px; font-weight: 700; color: var(--color-text); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 45px; }

/* ===== Back Link ===== */
.back-link {
  margin-top: 32px;
  text-align: center;
}
.back-link a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-muted);
  padding: 10px 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.back-link a:hover { color: var(--color-primary); border-color: var(--color-primary); background: rgba(244, 80, 30, 0.04); }

/* ===== Not Found ===== */
.not-found {
  text-align: center;
  padding: 60px 20px;
}
.not-found__icon {
  font-size: 48px;
  margin-bottom: 16px;
  color: rgba(34, 37, 42, 0.2);
}
.not-found__text { font-size: 18px; font-weight: 600; color: var(--color-text); margin-bottom: 8px; }
.not-found__sub { font-size: 14px; color: var(--color-text-muted); margin-bottom: 24px; }
.not-found a {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 14px;
  font-weight: 600;
  transition: background 0.25s ease, transform 0.25s ease;
}
.not-found a:hover { background: var(--color-primary-hover); transform: translateY(-2px); }

/* ===== For Empty Related ===== */
.related-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 32px 16px;
  background: rgba(34, 37, 42, 0.02);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-card);
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ===== Footer ===== */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 56px 0 28px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.footer__logo svg { width: 24px; height: 24px; color: var(--color-primary); }
.footer__brand p { font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, 0.55); max-width: 300px; }
.footer__nav { display: flex; flex-direction: column; gap: 10px; }
.footer__nav a { font-size: 14px; color: rgba(255, 255, 255, 0.65); transition: color 0.25s ease; }
.footer__nav a:hover { color: var(--color-primary-hover); }
.footer__top { display: flex; align-items: flex-start; }
.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-btn);
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
  white-space: nowrap;
}
.back-to-top:hover { color: #fff; border-color: rgba(255, 255, 255, 0.4); background: rgba(255, 255, 255, 0.06); }
.footer__copyright {
  padding-top: 24px;
  font-size: 13px;
  text-align: center;
  color: rgba(255, 255, 255, 0.4);
}
.footer__copyright a { color: rgba(255, 255, 255, 0.45); transition: color 0.25s ease; }
.footer__copyright a:hover { color: var(--color-primary-hover); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-main { padding: 36px 32px; }
  .related__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer__top { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  .site-dock { top: 10px; width: calc(100% - 20px); }
  .dock-inner { height: auto; flex-wrap: wrap; padding: 8px 12px; gap: 4px; }
  .dock-logo { padding: 4px 8px; }
  .dock-logo__text { font-size: 14px; }
  .dock-nav { order: 3; width: 100%; justify-content: center; padding-top: 6px; border-top: 1px solid rgba(255, 255, 255, 0.08); margin-top: 4px; }
  .dock-nav__link { padding: 6px 10px; font-size: 13px; flex-direction: column; gap: 2px; }
  .dock-nav__icon { font-size: 16px; }
  .dock-cta { padding: 6px 14px; font-size: 13px; }
  .dock-cta__label { display: none; }
  .breadcrumb { padding-top: 150px; }
  .article-main { padding: 28px 20px; }
  .article-title { font-size: 24px; }
  .article-body { font-size: 15px; }
  .related__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 24px; }
  .footer__top { grid-column: auto; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .dock-inner { justify-content: space-between; }
  .dock-logo__icon { width: 28px; height: 28px; font-size: 14px; }
  .dock-nav__link { padding: 4px 8px; }
  .article-main { padding: 24px 16px; border-radius: 12px; }
  .article-title { font-size: 21px; }
  .article-meta { gap: 10px; }
  .back-to-top { padding: 6px 12px; }
}

/* roulang page: category2 */
:root {
  --color-primary: #F4501E;
  --color-primary-hover: #FF6B3D;
  --color-primary-deep: #C73A12;
  --color-accent: #FFC94A;
  --color-bg: #F6F4EF;
  --color-bg-dark: #121417;
  --color-surface: #FFFFFF;
  --color-surface-dark: #1C1F23;
  --color-text: #22252A;
  --color-text-muted: #6B7076;
  --color-border: rgba(34, 37, 42, 0.12);
  --color-border-dark: rgba(255, 255, 255, 0.14);
  --radius-btn: 999px;
  --radius-card: 16px;
  --radius-img: 12px;
  --radius-input: 10px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04), 0 12px 32px rgba(244, 80, 30, 0.05);
  --shadow-dark: 0 12px 32px rgba(0, 0, 0, 0.35);
  --shadow-dock: 0 10px 30px rgba(0, 0, 0, 0.30);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-num: "DIN Alternate", "Barlow Condensed", Impact, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-main); font-size: 16px; line-height: 1.75; color: var(--color-text); background: var(--color-bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; font-size: 15px; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.15); border-radius: 3px; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }

/* ===== 浮动 Dock 导航 ===== */
.site-dock { position: fixed; top: 16px; left: 0; right: 0; z-index: 1000; display: flex; justify-content: center; padding: 0 16px; }
.dock-inner { display: flex; align-items: center; max-width: 960px; width: 100%; min-height: 56px; background: rgba(18, 20, 23, 0.82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, 0.10); border-radius: 999px; padding: 6px 10px 6px 20px; box-shadow: var(--shadow-dock); }
.dock-logo { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.dock-logo__icon { width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, var(--color-primary), var(--color-primary-deep)); color: #fff; font-weight: 900; font-size: 16px; display: flex; align-items: center; justify-content: center; }
.dock-logo__text { color: #fff; font-weight: 800; font-size: 17px; letter-spacing: 0.5px; white-space: nowrap; }
.dock-nav { display: flex; align-items: center; gap: 4px; margin: 0 auto; }
.dock-nav__link { display: flex; align-items: center; gap: 6px; padding: 10px 16px; border-radius: 999px; color: rgba(255, 255, 255, 0.78); font-size: 14px; font-weight: 500; transition: all 0.25s ease; position: relative; white-space: nowrap; }
.dock-nav__link::after { content: ""; position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%) scale(0); width: 4px; height: 4px; border-radius: 50%; background: var(--color-primary-hover); transition: transform 0.3s ease; }
.dock-nav__link:hover { color: #fff; }
.dock-nav__link:hover::after { transform: translateX(-50%) scale(1); }
.dock-nav__link.is-active { color: #fff; font-weight: 700; }
.dock-nav__link.is-active::after { transform: translateX(-50%) scale(1); }
.dock-nav__icon { font-size: 15px; line-height: 1; }
.dock-cta { display: inline-flex; align-items: center; gap: 6px; background: var(--color-primary); color: #fff; border-radius: 999px; padding: 10px 22px; font-size: 14px; font-weight: 600; transition: background 0.25s, transform 0.25s, box-shadow 0.25s; flex-shrink: 0; }
.dock-cta:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(244, 80, 30, 0.35); }
.dock-cta__icon { font-size: 14px; }

/* ===== Hero ===== */
.category-hero { position: relative; background: var(--color-bg-dark) url('/assets/images/backpic/back-2.webp') center/cover no-repeat; padding: 140px 0 80px; color: #fff; overflow: hidden; }
.category-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(18, 20, 23, 0.97) 0%, rgba(18, 20, 23, 0.84) 40%, rgba(244, 80, 30, 0.28) 100%); }
.category-hero > .container { position: relative; z-index: 2; }
.category-hero__tag { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.10); border: 1px solid rgba(255, 255, 255, 0.14); border-radius: 999px; padding: 6px 16px; font-size: 13px; color: var(--color-accent); font-weight: 600; letter-spacing: 0.5px; margin-bottom: 20px; }
.category-hero h1 { font-size: 48px; font-weight: 900; line-height: 1.2; margin-bottom: 16px; letter-spacing: 1px; }
.category-hero__sub { font-size: 17px; color: rgba(255, 255, 255, 0.78); max-width: 560px; line-height: 1.7; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 30px; border-radius: 999px; font-size: 15px; font-weight: 600; transition: all 0.25s ease; border: 1px solid transparent; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(244, 80, 30, 0.35); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.6); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.08); border-color: #fff; }
.btn-dark { background: var(--color-bg-dark); color: #fff; }
.btn-dark:hover { background: #2a2e33; transform: translateY(-2px); }

/* ===== 板块通用 ===== */
.section { padding: 96px 0; }
.section--alt { background: var(--color-surface); }
.section--dark { background: var(--color-bg-dark); color: #fff; }
.section__head { margin-bottom: 48px; }
.section__head.h-center { text-align: center; }
.section__tag { display: inline-block; font-size: 13px; font-weight: 700; color: var(--color-primary); background: rgba(244, 80, 30, 0.08); padding: 5px 14px; border-radius: 999px; margin-bottom: 12px; letter-spacing: 0.5px; }
.section h2 { font-size: 32px; font-weight: 800; line-height: 1.3; margin-bottom: 12px; }
.section__head .bar { width: 28px; height: 4px; background: var(--color-primary); border-radius: 2px; margin-top: 8px; }
.section__head.h-center .bar { margin-left: auto; margin-right: auto; }
.section__desc { color: var(--color-text-muted); max-width: 620px; font-size: 15px; margin-top: 14px; }
.section--dark .section__desc { color: rgba(255, 255, 255, 0.6); }

/* ===== 数据索引区 ===== */
.data-index-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 24px; }
.data-card--large { background: var(--color-surface); border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-card); transition: transform 0.3s, box-shadow 0.3s; }
.data-card--large:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(244, 80, 30, 0.08); }
.data-card--large .card-cover { position: relative; height: 260px; overflow: hidden; background: #e8e4de; }
.data-card--large .card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.data-card--large:hover .card-cover img { transform: scale(1.04); }
.card-cover__tag { position: absolute; top: 16px; left: 16px; background: var(--color-primary); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 14px; border-radius: 999px; letter-spacing: 0.5px; }
.card-body { padding: 24px; }
.card-body h3 { font-size: 20px; font-weight: 800; line-height: 1.4; margin-bottom: 10px; }
.card-body p { color: var(--color-text-muted); font-size: 14px; line-height: 1.7; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--color-text-muted); }
.card-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--color-text-muted); }
.card-meta .cat { color: var(--color-primary); font-weight: 600; }

.data-stack { display: flex; flex-direction: column; gap: 24px; }
.data-card--small { background: var(--color-surface); border-radius: var(--radius-card); padding: 22px 24px; box-shadow: var(--shadow-card); transition: transform 0.3s, box-shadow 0.3s; }
.data-card--small:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08); }
.data-card--small .small-top { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.data-card--small .icon-ring { width: 38px; height: 38px; border-radius: 12px; background: rgba(244, 80, 30, 0.10); display: flex; align-items: center; justify-content: center; color: var(--color-primary); flex-shrink: 0; font-size: 17px; }
.data-card--small h3 { font-size: 17px; font-weight: 700; line-height: 1.3; }
.data-card--small p { font-size: 14px; color: var(--color-text-muted); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.data-card--small .small-meta { margin-top: 10px; font-size: 13px; color: var(--color-text-muted); display: flex; gap: 8px; align-items: center; }

/* ===== 关键指标区 ===== */
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.metric-item { text-align: center; padding: 20px 16px; position: relative; }
.metric-item::after { content: ""; position: absolute; right: -16px; top: 50%; transform: translateY(-50%); width: 1px; height: 56px; background: rgba(255, 255, 255, 0.12); }
.metric-item:last-child::after { display: none; }
.metric-num { font-family: var(--font-num); font-size: 48px; font-weight: 900; color: var(--color-accent); line-height: 1.1; letter-spacing: -1px; display: flex; align-items: baseline; justify-content: center; gap: 4px; }
.metric-unit { font-size: 16px; font-weight: 700; color: rgba(255, 255, 255, 0.7); font-family: var(--font-main); }
.metric-label { margin-top: 8px; font-size: 13px; color: rgba(255, 255, 255, 0.6); letter-spacing: 0.5px; }

/* ===== 场景模块 ===== */
.scenario-row { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; margin-bottom: 80px; }
.scenario-row:last-child { margin-bottom: 0; }
.scenario-row--reverse .scenario-media { order: 2; }
.scenario-media { position: relative; border-radius: var(--radius-card); overflow: hidden; box-shadow: var(--shadow-dark); min-height: 280px; background: #e8e4de; }
.scenario-media img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.scenario-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.25)); }
.scenario-content h3 { font-size: 22px; font-weight: 800; margin-bottom: 14px; }
.scenario-content > p { color: var(--color-text-muted); font-size: 15px; line-height: 1.75; margin-bottom: 20px; }
.scenario-features { list-style: none; display: flex; flex-direction: column; gap: 12px; margin-bottom: 24px; }
.scenario-features li { display: flex; align-items: flex-start; gap: 10px; font-size: 15px; color: var(--color-text); }
.scenario-features li::before { content: ""; flex-shrink: 0; width: 18px; height: 18px; border-radius: 50%; background: rgba(244, 80, 30, 0.12); display: flex; align-items: center; justify-content: center; margin-top: 3px; box-shadow: inset 0 0 0 4px #fff, inset 0 0 0 5px var(--color-primary); }
.scenario-link { display: inline-flex; align-items: center; gap: 6px; color: var(--color-primary); font-weight: 700; font-size: 15px; transition: gap 0.3s; }
.scenario-link:hover { gap: 12px; }

/* ===== 延伸引导区 ===== */
.guide-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.guide-card { background: var(--color-surface-dark); border: 1px solid var(--color-border-dark); border-radius: var(--radius-card); padding: 36px 32px; transition: transform 0.3s, border-color 0.3s; }
.guide-card:hover { transform: translateY(-3px); border-color: rgba(244, 80, 30, 0.5); }
.guide-card .guide-icon { width: 46px; height: 46px; border-radius: 14px; background: rgba(244, 80, 30, 0.15); display: flex; align-items: center; justify-content: center; font-size: 20px; margin-bottom: 18px; }
.guide-card h3 { color: #fff; font-size: 19px; font-weight: 800; margin-bottom: 8px; }
.guide-card p { color: rgba(255, 255, 255, 0.6); font-size: 14px; line-height: 1.7; margin-bottom: 20px; }

.guide-link { display: inline-flex; align-items: center; gap: 6px; color: var(--color-primary-hover); font-weight: 700; font-size: 14px; transition: gap 0.3s; }
.guide-link:hover { gap: 12px; color: var(--color-primary-hover); }
.guide-link--light { color: var(--color-accent); }
.guide-link--light:hover { color: var(--color-accent); }

/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-card); margin-bottom: 12px; overflow: hidden; transition: box-shadow 0.3s, border-color 0.3s; }
.faq-item.is-open { border-color: rgba(244, 80, 30, 0.3); box-shadow: 0 4px 16px rgba(244, 80, 30, 0.06); }
.faq-question { display: flex; align-items: center; gap: 14px; width: 100%; padding: 18px 24px; text-align: left; font-size: 15px; font-weight: 700; color: var(--color-text); position: relative; }
.faq-item.is-open .faq-question { color: var(--color-primary); }
.faq-item.is-open .faq-question::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 3px; height: 22px; border-radius: 0 4px 4px 0; background: var(--color-primary); }
.faq-item.is-open .faq-question { padding-left: 26px; background: rgba(244, 80, 30, 0.04); }
.faq-icon { margin-left: auto; flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%; border: 1px solid var(--color-border); display: flex; align-items: center; justify-content: center; font-size: 14px; color: var(--color-text-muted); transition: transform 0.3s, background 0.3s, color 0.3s; }
.faq-item.is-open .faq-icon { transform: rotate(45deg); background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; padding: 0 26px; }
.faq-item.is-open .faq-answer { max-height: 300px; padding: 0 26px 20px; }
.faq-answer p { font-size: 14px; color: var(--color-text-muted); line-height: 1.8; padding-top: 4px; }

/* ===== CTA ===== */
.cta-section { position: relative; background: var(--color-bg-dark) url('/assets/images/backpic/back-3.webp') center/cover no-repeat; overflow: hidden; }
.cta-section::before { content: ""; position: absolute; inset: 0; background: rgba(18, 20, 23, 0.72); }
.cta-section > .container { position: relative; z-index: 2; }
.cta-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: flex-start; }
.cta-info h2 { color: #fff; font-size: 30px; font-weight: 800; margin-bottom: 14px; }
.cta-info > p { color: rgba(255, 255, 255, 0.65); font-size: 15px; max-width: 420px; margin-bottom: 32px; }
.cta-item { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.cta-item__icon { width: 40px; height: 40px; border-radius: 12px; background: rgba(244, 80, 30, 0.14); display: flex; align-items: center; justify-content: center; color: var(--color-primary-hover); font-size: 16px; flex-shrink: 0; }
.cta-item__label { font-size: 13px; color: rgba(255, 255, 255, 0.5); line-height: 1.4; }
.cta-item__value { font-size: 15px; color: #fff; font-weight: 600; line-height: 1.4; }
.cta-form { background: rgba(18, 20, 23, 0.6); border: 1px solid rgba(255, 255, 255, 0.10); border-radius: var(--radius-card); padding: 32px; backdrop-filter: blur(8px); }
.form-group { margin-bottom: 16px; }
.form-group input, .form-group textarea { width: 100%; background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.16); border-radius: var(--radius-input); padding: 12px 16px; color: #fff; font-size: 14px; transition: border-color 0.3s, background 0.3s; }
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255, 255, 255, 0.35); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--color-primary); background: rgba(255, 255, 255, 0.10); }
.form-group textarea { height: 110px; resize: vertical; }
.form-submit { width: 100%; }

/* ===== 页脚 ===== */
.footer { background: var(--color-bg-dark); padding: 60px 0 24px; color: rgba(255, 255, 255, 0.7); }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
.footer__logo { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; font-size: 18px; margin-bottom: 14px; }
.footer__logo svg { width: 24px; height: 24px; color: var(--color-primary-hover); }
.footer__brand p { font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, 0.45); max-width: 280px; }
.footer__nav { display: flex; flex-direction: column; gap: 12px; }
.footer__nav a { font-size: 14px; color: rgba(255, 255, 255, 0.55); transition: color 0.3s, padding-left 0.3s; }
.footer__nav a:hover { color: var(--color-primary-hover); padding-left: 4px; }
.footer__top { text-align: right; }
.back-to-top { background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.12); color: rgba(255, 255, 255, 0.7); padding: 10px 20px; border-radius: 999px; font-size: 13px; transition: background 0.3s, border-color 0.3s, color 0.3s; }
.back-to-top:hover { background: rgba(244, 80, 30, 0.15); border-color: var(--color-primary); color: #fff; }
.footer__copyright { border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 24px; font-size: 13px; color: rgba(255, 255, 255, 0.35); text-align: center; }
.footer__copyright a { color: rgba(255, 255, 255, 0.35); transition: color 0.3s; }
.footer__copyright a:hover { color: var(--color-primary-hover); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .section { padding: 64px 0; }
  .category-hero { padding: 120px 0 64px; }
  .category-hero h1 { font-size: 40px; }
  .data-index-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .metric-item:nth-child(2)::after { display: none; }
  .scenario-row { gap: 32px; }
  .cta-wrap { gap: 40px; }
}
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .dock-inner { padding-left: 16px; }
  .dock-nav__label { display: none; }
  .dock-nav__link { padding: 10px 12px; }
  .dock-cta__label { display: none; }
  .dock-cta { padding: 10px 14px; }
  .category-hero h1 { font-size: 32px; }
  .category-hero__sub { font-size: 15px; }
  .dock-nav { gap: 2px; }
  .dock-nav__icon { font-size: 16px; }
  .dock-logo__text { font-size: 15px; }
  .scenario-row { grid-template-columns: 1fr; gap: 24px; margin-bottom: 56px; }
  .scenario-row--reverse .scenario-media { order: 0; }
  .scenario-media { min-height: 220px; }
  .guide-grid { grid-template-columns: 1fr; }
  .cta-wrap { grid-template-columns: 1fr; gap: 32px; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__top { text-align: left; }
  .section__head { margin-bottom: 32px; }
  .section h2 { font-size: 26px; }
  /* 移动端底部浮动导航 */
  .site-dock { top: auto; bottom: 12px; padding: 0 12px; }
  .dock-inner { min-height: 60px; padding: 6px 8px; border-radius: 999px; }
  .dock-logo__icon { width: 30px; height: 30px; font-size: 14px; }
  .dock-logo__text { display: none; }
  .dock-nav { width: 100%; justify-content: space-around; }
  .dock-nav__link { flex-direction: column; gap: 2px; padding: 8px 10px; font-size: 11px; }
  .dock-nav__link::after { bottom: 2px; }
  .dock-nav__icon { font-size: 18px; }
  .dock-cta { position: absolute; right: 8px; padding: 8px; width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
  .dock-cta__icon { font-size: 15px; }
  .dock-cta__label { display: none; }
}
@media (max-width: 480px) {
  body { font-size: 15px; }
  .container { padding-left: 16px; padding-right: 16px; }
  .category-hero h1 { font-size: 28px; }
  .category-hero { padding: 110px 0 56px; }
  .card-body { padding: 20px; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .metric-num { font-size: 36px; }
  .cta-form { padding: 24px; }
  .btn { padding: 13px 24px; font-size: 14px; }
  .form-submit { width: 100%; }
}

/* roulang page: category1 */
:root{
  --color-primary:#F4501E;
  --color-primary-hover:#FF6B3D;
  --color-primary-deep:#C73A12;
  --color-accent:#FFC94A;
  --color-bg:#F6F4EF;
  --color-bg-dark:#121417;
  --color-surface:#FFFFFF;
  --color-surface-dark:#1C1F23;
  --color-text:#22252A;
  --color-text-muted:#6B7076;
  --color-border:rgba(34,37,42,0.12);
  --color-border-dark:rgba(255,255,255,0.14);
  --radius-btn:999px;
  --radius-card:16px;
  --radius-img:12px;
  --radius-input:10px;
  --shadow-card:0 2px 8px rgba(0,0,0,0.04),0 12px 32px rgba(244,80,30,0.05);
  --shadow-card-dark:0 12px 32px rgba(0,0,0,0.35);
  --shadow-dock:0 10px 30px rgba(0,0,0,0.30);
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --font-num:"DIN Alternate","Barlow Condensed",tabular-nums;
  --container-w:1200px;
  --section-pad:96px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{font-family:var(--font-main);font-size:16px;line-height:1.75;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea{font-family:inherit;font-size:14px}
ul,ol{list-style:none}
.container{max-width:var(--container-w);margin:0 auto;padding:0 20px}
.section{padding:var(--section-pad) 0}
@media(max-width:1024px){:root{--section-pad:64px}}
@media(max-width:768px){:root{--section-pad:48px}}

/* ========== Dock导航 ========== */
.site-dock{position:fixed;top:16px;left:0;right:0;z-index:1000;display:flex;justify-content:center;padding:0 20px;pointer-events:none}
.dock-inner{pointer-events:auto;max-width:960px;width:100%;height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:6px 10px;background:rgba(18,20,23,0.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,0.10);border-radius:999px;box-shadow:var(--shadow-dock)}
.dock-logo{display:flex;align-items:center;gap:8px;padding:0 10px 0 6px;flex-shrink:0}
.dock-logo__icon{width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--color-primary),var(--color-accent));color:#fff;font-size:20px;font-weight:900;border-radius:50%;line-height:1}
.dock-logo__text{font-size:16px;font-weight:700;color:#fff;letter-spacing:0.5px;white-space:nowrap}
.dock-nav{display:flex;align-items:center;gap:2px;flex-shrink:0}
.dock-nav__link{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:999px;color:rgba(255,255,255,0.78);font-size:14px;font-weight:500;transition:all 0.25s ease;position:relative;white-space:nowrap}
.dock-nav__link:hover{color:#fff;background:rgba(255,255,255,0.08)}
.dock-nav__link:hover::after{content:"";position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:4px;height:4px;border-radius:50%;background:var(--color-primary)}
.dock-nav__link.is-active{color:#fff;font-weight:700}
.dock-nav__link.is-active::after{content:"";position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:4px;height:4px;border-radius:50%;background:var(--color-primary)}
.dock-nav__icon{font-size:14px;line-height:1}
.dock-cta{display:flex;align-items:center;gap:6px;padding:8px 18px;border-radius:999px;background:var(--color-primary);color:#fff;font-size:14px;font-weight:600;transition:all 0.25s ease;flex-shrink:0}
.dock-cta:hover{background:var(--color-primary-hover);transform:translateY(-2px)}
.dock-cta__icon{font-size:14px}

/* ========== Hero ========== */
.hero{position:relative;display:flex;align-items:center;min-height:640px;background:var(--color-bg-dark);padding-top:120px;padding-bottom:80px;overflow:hidden}
.hero__bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,#121417 0%,rgba(18,20,23,0.85) 40%,rgba(18,20,23,0.55) 70%,rgba(18,20,23,0.35) 100%)}
.hero__glow{position:absolute;right:-120px;top:50%;transform:translateY(-50%);width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(244,80,30,0.35) 0%,transparent 70%);pointer-events:none}
.hero__content{position:relative;z-index:2;max-width:680px;padding:40px 0}
.hero__badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:rgba(244,80,30,0.18);border:1px solid rgba(244,80,30,0.35);border-radius:999px;color:var(--color-accent);font-size:13px;font-weight:600;margin-bottom:24px}
.hero__badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--color-primary);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}
.hero h1{font-size:48px;font-weight:900;line-height:1.15;color:#fff;letter-spacing:1px;margin-bottom:20px}
.hero__subtitle{font-size:18px;line-height:1.6;color:rgba(255,255,255,0.85);margin-bottom:36px;max-width:520px}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 28px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;transition:all 0.3s ease;border:1px solid transparent}
.btn--primary{background:var(--color-primary);color:#fff}
.btn--primary:hover{background:var(--color-primary-hover);transform:translateY(-2px);box-shadow:0 8px 24px rgba(244,80,30,0.35)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,0.45);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,0.08);border-color:#fff;transform:translateY(-2px)}
.hero__wave{position:absolute;bottom:-1px;left:0;right:0;z-index:2;line-height:0}
.hero__wave svg{width:100%;height:40px;fill:var(--color-bg)}

/* ========== 标签快速入口 ========== */
.tag-bar{background:var(--color-bg);padding:24px 0 0}
.tag-bar__inner{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.tag-bar a{display:inline-flex;padding:10px 22px;border-radius:999px;background:var(--color-surface);border:1px solid var(--color-border);font-size:14px;font-weight:500;color:var(--color-text);transition:all 0.25s ease;box-shadow:0 2px 6px rgba(0,0,0,0.04)}
.tag-bar a:hover{border-color:var(--color-primary);color:var(--color-primary);transform:translateY(-2px);box-shadow:0 6px 16px rgba(244,80,30,0.10)}

/* ========== 板块标题 ========== */
.section-head{margin-bottom:48px}
.section-head h2{font-size:32px;font-weight:800;line-height:1.3;letter-spacing:0.5px;margin-bottom:14px;position:relative;display:inline-block}
.section-head h2::after{content:"";display:block;width:28px;height:3px;border-radius:2px;background:var(--color-primary);margin-top:10px}
.section-head p{font-size:15px;color:var(--color-text-muted);margin-top:8px;max-width:480px}

/* ========== 热点资讯 ========== */
.hot-grid{display:grid;grid-template-columns:1.4fr 1fr;grid-template-rows:auto auto;gap:24px}
.hot-card{background:var(--color-surface);border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--color-border);box-shadow:var(--shadow-card);transition:all 0.3s ease;display:flex;flex-direction:column}
.hot-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(244,80,30,0.08)}
.hot-card--large{grid-row:span 2}
.hot-card__cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#e8e4de}
.hot-card--small .hot-card__cover{aspect-ratio:16/7}
.hot-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.hot-card:hover .hot-card__cover img{transform:scale(1.04)}
.hot-card__body{padding:20px;display:flex;flex-direction:column;flex:1}
.hot-card__tag{display:inline-flex;align-self:flex-start;font-size:12px;font-weight:600;color:var(--color-primary);background:rgba(244,80,30,0.08);padding:4px 10px;border-radius:999px;margin-bottom:12px}
.hot-card__title{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-card--large .hot-card__title{font-size:22px}
.hot-card__excerpt{font-size:14px;color:var(--color-text-muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.hot-card--small .hot-card__excerpt{display:none}
.hot-card__meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--color-text-muted);margin-top:auto}
.hot-card__meta span{display:flex;align-items:center;gap:4px}

/* ========== 资讯维度 ========== */
.dimensions{background:var(--color-surface)}
.dimension-list{border-top:1px solid var(--color-border)}
.dimension-item{display:grid;grid-template-columns:64px 160px 1fr;align-items:center;gap:24px;padding:32px 16px;border-bottom:1px solid var(--color-border);transition:background 0.3s ease}
.dimension-item:hover{background:rgba(244,80,30,0.04)}
.dimension-item__num{font-family:var(--font-num);font-size:36px;font-weight:900;color:var(--color-primary);opacity:0.6;line-height:1}
.dimension-item__icon{width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:rgba(244,80,30,0.10);color:var(--color-primary)}
.dimension-item__icon svg{width:22px;height:22px}
.dimension-item__title{font-size:18px;font-weight:700;margin-bottom:4px}
.dimension-item__desc{font-size:14px;color:var(--color-text-muted);line-height:1.6}

/* ========== 数据带 ========== */
.stats-band{background:var(--color-bg-dark);padding:72px 0;position:relative;overflow:hidden}
.stats-band::before{content:"";position:absolute;top:-100px;right:-100px;width:300px;height:300px;border-radius:50%;background:rgba(244,80,30,0.10);filter:blur(60px)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative;z-index:2}
.stat-item{text-align:center;padding:20px 0;border-right:1px solid rgba(255,255,255,0.10)}
.stat-item:last-child{border-right:none}
.stat-item__num{font-family:var(--font-num);font-size:52px;font-weight:900;color:var(--color-accent);line-height:1.1;display:block;margin-bottom:6px}
.stat-item__num small{font-size:16px;font-weight:600;color:var(--color-accent)}
.stat-item__label{font-size:13px;color:rgba(255,255,255,0.65);letter-spacing:1px}

/* ========== 延伸引导 ========== */
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.guide-card{border-radius:var(--radius-card);overflow:hidden;position:relative;min-height:220px;display:flex;align-items:flex-end;padding:32px;background:var(--color-surface-dark);border:1px solid var(--color-border-dark);transition:all 0.3s ease}
.guide-card:hover{transform:translateY(-4px);border-color:var(--color-primary)}
.guide-card__bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0.25}
.guide-card__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,var(--color-bg-dark) 0%,transparent 60%)}
.guide-card--data .guide-card__bg{background:url('/assets/images/coverpic/cover-5.webp') center/cover no-repeat}
.guide-card--contact .guide-card__bg{background:url('/assets/images/coverpic/cover-6.png') center/cover no-repeat}
.guide-card__content{position:relative;z-index:2;color:#fff}
.guide-card__content h3{font-size:22px;font-weight:800;margin-bottom:8px}
.guide-card__content p{font-size:14px;color:rgba(255,255,255,0.75);margin-bottom:16px;line-height:1.6}
.guide-card__arrow{display:inline-flex;align-items:center;gap:6px;color:var(--color-accent);font-size:14px;font-weight:600}
.guide-card__arrow svg{width:16px;height:16px;transition:transform 0.3s ease}
.guide-card:hover .guide-card__arrow svg{transform:translateX(4px)}

/* ========== FAQ ========== */
.faq-list{max-width:780px;margin:0 auto}
.faq-item{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-card);margin-bottom:12px;overflow:hidden;transition:border-color 0.3s ease}
.faq-item.is-open{border-color:var(--color-primary)}
.faq-item__q{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;cursor:pointer;font-size:15px;font-weight:600;color:var(--color-text);transition:background 0.3s ease;position:relative}
.faq-item.is-open .faq-item__q{background:rgba(244,80,30,0.04);color:var(--color-primary-deep)}
.faq-item__q::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--color-primary);border-radius:0 3px 3px 0;opacity:0;transition:opacity 0.3s ease}
.faq-item.is-open .faq-item__q::before{opacity:1}
.faq-item__icon{width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(244,80,30,0.10);color:var(--color-primary);font-size:16px;transition:transform 0.3s ease;flex-shrink:0}
.faq-item.is-open .faq-item__icon{transform:rotate(45deg)}
.faq-item__a{max-height:0;overflow:hidden;transition:max-height 0.4s ease}
.faq-item.is-open .faq-item__a{max-height:300px}
.faq-item__a p{padding:0 22px 18px;font-size:14px;color:var(--color-text-muted);line-height:1.7}

/* ========== CTA联系 ========== */
.cta-contact{background:var(--color-bg-dark);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.cta-contact::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;opacity:0.18}
.cta-contact::after{content:"";position:absolute;left:0;right:0;top:0;bottom:0;background:rgba(18,20,23,0.72)}
.cta-contact .container{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:56px}
.cta-contact__title{font-size:30px;font-weight:800;line-height:1.3;margin-bottom:16px}
.cta-contact__title span{color:var(--color-primary)}
.cta-contact__desc{font-size:15px;color:rgba(255,255,255,0.75);line-height:1.7;margin-bottom:32px;max-width:420px}
.contact-info{display:flex;flex-direction:column;gap:18px}
.contact-info__item{display:flex;align-items:flex-start;gap:14px;font-size:15px;color:rgba(255,255,255,0.85)}
.contact-info__icon{width:38px;height:38px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(244,80,30,0.15);color:var(--color-accent);flex-shrink:0;font-size:16px}
.contact-form{background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.10);border-radius:var(--radius-card);padding:32px;backdrop-filter:blur(8px)}
.contact-form .form-group{margin-bottom:18px}
.contact-form label{display:block;font-size:13px;color:rgba(255,255,255,0.75);margin-bottom:8px;font-weight:500}
.contact-form input,.contact-form textarea{width:100%;padding:12px 16px;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.16);border-radius:var(--radius-input);color:#fff;font-size:14px;outline:none;transition:all 0.3s ease}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--color-primary);background:rgba(255,255,255,0.09)}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:rgba(255,255,255,0.35)}
.contact-form textarea{height:120px;resize:vertical}
.contact-form .btn{width:100%;margin-top:6px}

/* ========== Footer ========== */
.footer{background:var(--color-bg-dark);padding:64px 0 0;color:rgba(255,255,255,0.60)}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px}
.footer__logo{display:inline-flex;align-items:center;gap:8px;font-size:20px;font-weight:800;color:#fff;margin-bottom:16px}
.footer__logo svg{width:22px;height:22px;color:var(--color-primary)}
.footer__brand p{font-size:14px;line-height:1.7;max-width:320px}
.footer__nav{display:flex;flex-direction:column;gap:12px}
.footer__nav a{font-size:14px;color:rgba(255,255,255,0.65);transition:color 0.3s ease}
.footer__nav a:hover{color:var(--color-primary)}
.footer__top{display:flex;align-items:flex-start;justify-content:flex-end}
.back-to-top{display:inline-flex;align-items:center;gap:6px;padding:10px 16px;border-radius:999px;border:1px solid rgba(255,255,255,0.20);color:rgba(255,255,255,0.70);font-size:13px;transition:all 0.3s ease}
.back-to-top:hover{border-color:var(--color-primary);color:var(--color-primary);transform:translateY(-2px)}
.footer__copyright{border-top:1px solid rgba(255,255,255,0.08);padding:20px 0;font-size:13px;color:rgba(255,255,255,0.40);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.footer__copyright a{color:rgba(255,255,255,0.50)}
.footer__copyright a:hover{color:var(--color-primary)}

/* ========== 返回顶部浮钮 ========== */
.back-top-fixed{position:fixed;right:24px;bottom:100px;z-index:999;width:42px;height:42px;border-radius:50%;background:var(--color-primary);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 20px rgba(244,80,30,0.35);opacity:0;visibility:hidden;transition:all 0.3s ease}
.back-top-fixed.visible{opacity:1;visibility:visible}
.back-top-fixed:hover{background:var(--color-primary-hover);transform:translateY(-2px)}

/* ========== 响应式 ========== */
@media(max-width:1024px){
  .container{padding:0 24px}
  .hero h1{font-size:40px}
  .hot-grid{grid-template-columns:1fr 1fr}
  .hot-card--large{grid-row:auto}
  .stats-grid{grid-template-columns:1fr 1fr;gap:24px}
  .stat-item{border-right:none;border-bottom:1px solid rgba(255,255,255,0.10);padding:16px 0}
  .stat-item:nth-child(2n){border-right:1px solid rgba(255,255,255,0.10)}
  .stat-item:nth-child(-n+2){border-top:none}
  .cta-contact .container{grid-template-columns:1fr 1fr;gap:32px}
  .dimension-item{grid-template-columns:48px 120px 1fr;gap:16px}
}
@media(max-width:768px){
  .site-dock{top:auto;bottom:12px;padding:0 10px}
  .dock-inner{height:60px;max-width:96%}
  .dock-logo__text{display:none}
  .dock-nav{flex:1}
  .dock-nav__link{flex-direction:column;gap:2px;padding:6px 10px;font-size:11px}
  .dock-nav__link::after{top:0;bottom:auto}
  .dock-nav__icon{font-size:16px}
  .dock-cta span.dock-cta__label{display:none}
  .dock-cta{padding:10px}
  .dock-cta__icon{font-size:16px}
  .hero{min-height:560px;padding-top:100px;padding-bottom:60px}
  .hero h1{font-size:32px}
  .hero__subtitle{font-size:16px}
  .hot-grid{grid-template-columns:1fr}
  .hot-card--small .hot-card__cover{aspect-ratio:16/9}
  .section-head h2{font-size:26px}
  .dimension-item{grid-template-columns:40px 1fr;gap:12px;padding:24px 12px}
  .dimension-item__icon{display:none}
  .dimension-item__desc{grid-column:2}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat-item__num{font-size:40px}
  .guide-grid{grid-template-columns:1fr}
  .cta-contact .container{grid-template-columns:1fr}
  .cta-contact__title{font-size:26px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer__top{grid-column:span 2;justify-content:flex-start}
  .back-top-fixed{bottom:90px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .hero h1{font-size:28px}
  .dock-inner{max-width:98%}
  .dock-nav__link{padding:6px 8px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:16px}
  .stat-item__num{font-size:34px}
  .contact-form{padding:24px}
  .contact-form .btn{width:100%}
  .footer__grid{grid-template-columns:1fr}
  .footer__top{grid-column:auto}
}