/*
 * 嘉才集团官网 · 全站基础样式
 * ------------------------------------------------------------------
 * 本文件是全站设计系统：设计变量、基础排版、顶部导航、页脚、按钮、
 * 区块与卡片、首页专用组件、FAQ、转化区。
 * 服务页模板组件（页面首屏、二级导航、模块卡、流程、对照表、Tabs）
 * 见 pages.css；机构检索库见 equity-financing.css。
 *
 * 三层结构：
 *   styles.css          全站通用（本文件）
 *   pages.css           三条业务线页面共用模板
 *   equity-financing.css 股权融资页专属（机构检索库）
 * ------------------------------------------------------------------
 */

/* ---------- 1. 设计变量 ---------- */

:root {
  --ink: #0b1526;
  --muted: #4d5b68;
  --muted-soft: #66727d;
  --paper: #e6edf2;
  --paper-deep: #dde7ee;
  --card: #f7fafc;
  --white: #ffffff;
  --gold: #c8a35a;
  --gold-soft: #ead6a4;
  --gold-deep: #7a6130;
  --navy: #0a1728;
  --navy-mid: #13263f;
  --navy-deep: #050c18;
  --line: rgba(92, 111, 128, 0.22);
  --line-light: rgba(255, 255, 255, 0.14);
  --shadow: 0 14px 30px rgba(11, 21, 38, 0.11);
  --shadow-lift: 0 22px 44px rgba(11, 21, 38, 0.18);
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 20px;
  --header-h: 56px;
  --serif: "Songti SC", "STSong", "SimSun", "PingFang SC", serif;
  color-scheme: light;
  font-family:
    -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    "Hiragino Sans GB", Arial, sans-serif;
}

@media (min-width: 900px) {
  :root {
    --header-h: 66px;
  }
}

/* ---------- 2. 基础 ---------- */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100%;
  overflow-x: hidden;
  overflow-x: clip;
  color: var(--ink);
  letter-spacing: 0;
  background:
    radial-gradient(circle at 16% 2%, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0) 32%),
    radial-gradient(circle at 90% 42%, rgba(200, 163, 90, 0.1), rgba(200, 163, 90, 0) 34%),
    radial-gradient(circle at 10% 96%, rgba(111, 139, 162, 0.16), rgba(111, 139, 162, 0) 30%),
    linear-gradient(180deg, var(--paper), var(--paper-deep));
}

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

h1,
h2,
h3,
h4,
p,
li {
  overflow-wrap: break-word;
}

a {
  color: inherit;
}

/* ---------- 3. 无障碍与工具类 ---------- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--white);
  color: var(--navy);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--gold-soft);
  outline-offset: 4px;
}

#main-content:focus {
  outline: none;
}

/* ---------- 4. 顶部导航（全站共用） ---------- */

.site-header {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid rgba(200, 163, 90, 0.24);
  /* 原来写 rgba(6, 15, 28) 接近纯黑，压在深蓝首屏上像一条独立的黑条。
     改成 navy 家族的深蓝并带一道自上而下的微渐变，与天空、深蓝色块同调 */
  background: linear-gradient(180deg, rgba(23, 46, 74, 0.97), rgba(11, 25, 44, 0.98));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  width: min(1240px, 100%);
  min-height: var(--header-h);
  margin: 0 auto;
  padding: 0 16px;
}

.site-brand {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 9px;
  color: var(--white);
  text-decoration: none;
}

.site-brand img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.site-brand-text {
  display: grid;
  gap: 2px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.15;
  white-space: nowrap;
}

.site-brand-text em {
  color: var(--gold-soft);
  font-size: 8.5px;
  font-style: normal;
  font-weight: 500;
  letter-spacing: 0.18em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  min-width: 0;
  margin-left: auto;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: none;
}

.site-nav::-webkit-scrollbar {
  display: none;
}

.site-nav a {
  flex: none;
  padding: 7px 10px;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(200, 163, 90, 0.16);
  color: var(--white);
}

.site-nav a[aria-current="page"] {
  background: rgba(200, 163, 90, 0.14);
  color: var(--gold-soft);
  font-weight: 700;
}

.site-nav .nav-cta {
  margin-left: 10px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--gold);
  color: #101c2e;
  font-weight: 700;
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta:focus-visible {
  background: var(--gold-soft);
  color: #101c2e;
}

.nav-toggle {
  display: none;
  flex: none;
  width: 40px;
  height: 40px;
  margin-left: auto;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  cursor: pointer;
  place-items: center;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 160ms ease, opacity 160ms ease;
}

.nav-toggle-icon {
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  position: absolute;
  left: 0;
  content: "";
}

.nav-toggle-icon::before {
  top: -5px;
}

.nav-toggle-icon::after {
  top: 5px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  transform: translateY(-5px) rotate(-45deg);
}

@media (min-width: 900px) {
  .site-header-inner {
    padding: 0 28px;
  }

  .site-brand img {
    width: 40px;
    height: 40px;
  }

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

  .site-nav {
    gap: 4px;
    overflow: visible;
  }

  .site-nav a {
    padding: 8px 13px;
    font-size: 14px;
  }
}

/* 900–1120px：导航共 8 项，收紧间距，避免与品牌、CTA 抢位 */
@media (min-width: 900px) and (max-width: 1120px) {
  .site-nav {
    gap: 0;
  }

  .site-nav a {
    padding: 8px 9px;
    font-size: 13px;
  }
}

/* 带脚本时：窄屏收进抽屉菜单 */
@media (max-width: 899px) {
  .js .nav-toggle {
    display: grid;
  }

  .js .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    max-height: 70vh;
    max-height: calc(100dvh - var(--header-h));
    margin: 0;
    padding: 10px 16px 18px;
    overflow-y: auto;
    border-bottom: 1px solid rgba(200, 163, 90, 0.24);
    background: rgba(6, 15, 28, 0.985);
    box-shadow: 0 26px 44px rgba(0, 0, 0, 0.42);
  }

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

  .js .site-nav a {
    padding: 12px 10px;
    border-radius: 8px;
    font-size: 15px;
  }

  .js .site-nav .nav-cta {
    display: flex;
    justify-content: center;
    margin: 8px 0 0;
    padding: 12px 16px;
  }
}

/* ---------- 5. 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.btn--gold {
  background: var(--gold);
  color: #101c2e;
}

.btn--gold:hover,
.btn--gold:focus-visible {
  background: var(--gold-soft);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.07);
  color: var(--white);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: rgba(255, 255, 255, 0.16);
}

.btn--outline {
  border-color: rgba(10, 23, 40, 0.22);
  background: transparent;
  color: var(--ink);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  border-color: var(--gold);
  background: rgba(200, 163, 90, 0.12);
}

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

/* ---------- 6. 区块与排版 ---------- */

.section {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 46px 20px 0;
}

.section--last {
  padding-bottom: 52px;
}

.section-header {
  margin-bottom: 24px;
}

.section-header h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(22px, 5.6vw, 30px);
  font-weight: 700;
  line-height: 1.32;
}

.section-header h2::after {
  display: block;
  width: 56px;
  height: 3px;
  margin-top: 12px;
  content: "";
  border-radius: 999px;
  background: var(--gold);
}

.section-header > p:not(.eyebrow) {
  max-width: 720px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.88;
}

.eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 12px;
  color: var(--gold-deep);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.eyebrow span {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.24em;
  opacity: 0.72;
}

.eyebrow--dark {
  color: var(--gold-soft);
}

.eyebrow--dark span {
  color: rgba(255, 255, 255, 0.72);
}

.title-row {
  display: inline-flex;
  align-items: flex-start;
  gap: 10px;
}

.title-row svg {
  flex: none;
  width: 26px;
  height: 26px;
  margin-top: 2px;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* 关键词只做轻量分行，不再用胶囊盒子，避免卡片内层层叠框 */
.chip-list li {
  color: var(--muted-soft);
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: 0.01em;
}

.chip-list li + li::before {
  margin: 0 8px;
  color: rgba(200, 163, 90, 0.72);
  content: "·";
}

.chip-list--dark li {
  color: rgba(255, 255, 255, 0.68);
}

/* 深色区块：通栏背景 + 内部正常 .section 留白 */
.band {
  margin-top: 52px;
  color: var(--white);
}

.band--navy {
  background:
    radial-gradient(ellipse 90% 70% at 84% 0%, rgba(200, 163, 90, 0.14), transparent 62%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-mid) 58%, #0a1a2e 100%);
}

.band .section {
  padding-top: 46px;
  padding-bottom: 46px;
}

.band .section-header h2 {
  color: var(--white);
}

.band .section-header > p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.76);
}

/* ---------- 7. 首页首屏 ---------- */

.hero {
  position: relative;
  display: flex;
  min-height: 520px;
  min-height: calc(90svh - var(--header-h));
  overflow: hidden;
  color: var(--white);
  background: linear-gradient(180deg, var(--navy-deep) 0%, #0b1a30 52%, #13263f 100%);
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  content: "";
  background:
    linear-gradient(
      180deg,
      rgba(4, 10, 20, 0.03) 0%,
      rgba(4, 10, 20, 0.14) 26%,
      rgba(4, 10, 20, 0.52) 50%,
      rgba(4, 10, 20, 0.8) 70%,
      rgba(4, 10, 20, 0.94) 100%
    ),
    linear-gradient(90deg, rgba(4, 10, 20, 0.3), rgba(4, 10, 20, 0.04) 72%);
}

.hero::after {
  position: absolute;
  inset: 0;
  z-index: 2;
  content: "";
  background: radial-gradient(ellipse 100% 58% at 50% 100%, rgba(200, 163, 90, 0.14), transparent 66%);
  pointer-events: none;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 30%;
}

.hero-inner {
  position: relative;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: flex-end; /* 文字压在画面下方，上方山头与天空留白 */
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 48px 20px 54px;
}

.hero h1 {
  display: grid;
  gap: 4px;
  margin: 14px 0 0;
  font-family: var(--serif);
  font-size: clamp(28px, 7.2vw, 34px);
  font-weight: 700;
  line-height: 1.36;
  text-shadow: 0 20px 52px rgba(0, 0, 0, 0.55);
}

.hero h1::after {
  width: 112px;
  height: 4px;
  margin-top: 16px;
  content: "";
  border-radius: 999px;
  background: var(--gold);
}

.hero-lead {
  max-width: 560px;
  margin: 18px 0 0;
  color: rgba(243, 247, 250, 0.86);
  font-size: 14px;
  line-height: 1.8;
  letter-spacing: 0.01em;
}

.hero-lead strong {
  color: var(--gold-soft);
  font-size: 17px;
  font-weight: 800;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* ---------- 7.5 平台陈述（第二屏） ---------- */

/*
 * 首屏只留主张，说明文字全部下移到这里：
 *   eyebrow → 衬线主张（两行）→ 一段事实说明 → 一句收束。
 * 靠字号与行距拉开层级，不加卡片、不加底色。
 */

.section--intro {
  padding-top: 54px;
}

.intro-title {
  display: grid;
  gap: 2px;
  margin: 12px 0 0;
  font-family: var(--serif);
  font-size: clamp(22px, 5.6vw, 30px);
  font-weight: 700;
  line-height: 1.38;
}

.intro-title::after {
  width: 56px;
  height: 3px;
  margin-top: 16px;
  content: "";
  border-radius: 999px;
  background: var(--gold);
}

.intro-lead {
  max-width: 680px;
  margin: 20px 0 0;
  color: var(--ink);
  font-size: 14.5px;
  line-height: 1.95;
}

.intro-note {
  margin: 14px 0 0;
  padding-left: 13px;
  border-left: 2px solid rgba(200, 163, 90, 0.55);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

/* ---------- 8. 服务矩阵（首页三大主线） ---------- */

.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: 0 10px 24px rgba(11, 21, 38, 0.07);
  color: inherit;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.service-card::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--gold), rgba(200, 163, 90, 0));
}

.service-card:hover,
.service-card:focus-visible {
  border-color: rgba(200, 163, 90, 0.55);
  box-shadow: var(--shadow-lift);
  transform: translateY(-3px);
}

.service-no {
  color: rgba(200, 163, 90, 0.6);
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1;
  letter-spacing: 0.06em;
}

.service-card h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
}

.service-card > p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 4px;
  color: var(--gold-deep);
  font-size: 13px;
  font-weight: 700;
}

.service-link span {
  font-size: 16px;
  line-height: 1;
  transition: transform 160ms ease;
}

.service-card:hover .service-link span {
  transform: translateX(3px);
}

/* ---------- 9. 赋能链路 ---------- */

.chain {
  position: relative;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: chain;
}

/* 五步串成一条时间轴：不再每步套一个盒子 */
.chain li {
  position: relative;
  padding: 0 0 26px 22px;
}

.chain li::before {
  position: absolute;
  top: 5px;
  bottom: 0;
  left: 0;
  width: 1px;
  content: "";
  background: rgba(234, 214, 164, 0.34);
}

.chain li::after {
  position: absolute;
  top: 5px;
  left: -2px;
  width: 5px;
  height: 5px;
  content: "";
  border-radius: 50%;
  background: var(--gold-soft);
}

.chain li:last-child {
  padding-bottom: 0;
}

.chain li:last-child::before {
  bottom: auto;
  height: 14px;
}

.chain-no {
  display: block;
  color: var(--gold-soft);
  font-family: var(--serif);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.chain h3 {
  margin: 7px 0 5px;
  font-size: 15.5px;
  font-weight: 700;
}

.chain p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12.5px;
  line-height: 1.78;
}

/* ---------- 10. 支撑能力 ---------- */

.support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

/* 三条支撑能力：细线分栏，关键词与标题同行，不再各占一张大卡 */
.support-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  column-gap: 12px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.support-card:first-child {
  padding-top: 0;
  border-top: 0;
}

.support-card strong {
  color: var(--gold-deep);
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
}

.support-card h3 {
  margin: 0;
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.4;
}

.support-card p {
  grid-column: 1 / -1;
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.8;
}

/* ---------- 11. 重点产业方向 ---------- */

/*
 * 十个方向一次铺满一屏，不再横向滑动：
 *   1. 栅格列数随容器宽度自适应，手机竖栏自动两列 × 五行；
 *   2. 每张卡是宽幅实景 + 图内压字（序号 + 行业名），
 *      高度约 93px，10 个方向可在同一屏内全部看完；
 *   3. 名称压在深蓝渐变上，保证在任何一张亮调照片上都清晰可读。
 */

.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 140px), 1fr));
  gap: 9px;
}

.industry-card {
  position: relative;
  display: block;
  min-width: 0;
  min-height: 86px;
  overflow: hidden;
  border-radius: 12px;
  background: var(--navy);
  box-shadow: 0 10px 22px rgba(11, 21, 38, 0.16);
}

.industry-media {
  position: absolute;
  inset: 0;
  margin: 0;
  background: var(--navy);
}

.industry-media::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(
    180deg,
    rgba(5, 12, 24, 0.1) 0%,
    rgba(5, 12, 24, 0.34) 46%,
    rgba(5, 12, 24, 0.88) 100%
  );
  pointer-events: none;
}

.industry-media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.industry-text {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 0 11px 10px;
}

.industry-number {
  color: var(--gold-soft);
  font-family: var(--serif);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  line-height: 1.1;
  text-shadow: 0 1px 6px rgba(5, 12, 24, 0.6);
}

.industry-card h3 {
  margin: 0;
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.25;
  overflow-wrap: anywhere;
  text-shadow: 0 1px 8px rgba(5, 12, 24, 0.55);
}

/* ---------- 12. 差异化优势 ---------- */

.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

/* 四句差异点：与「支撑能力」同一套细线行结构，保持整页节奏一致 */
.why-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  column-gap: 12px;
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.why-card:first-child {
  padding-top: 0;
  border-top: 0;
}

.why-card strong {
  color: var(--gold-soft);
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
}

.why-card h3 {
  margin: 0;
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.4;
}

.why-card p {
  grid-column: 1 / -1;
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 12.5px;
  line-height: 1.78;
}

/* ---------- 13. 常见问题 ---------- */

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-list details {
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 12px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.faq-list summary {
  position: relative;
  padding: 16px 48px 16px 18px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  cursor: pointer;
  list-style: none;
}

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

.faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 18px;
  display: grid;
  width: 24px;
  height: 24px;
  border: 1px solid rgba(200, 163, 90, 0.6);
  border-radius: 50%;
  color: var(--gold-deep);
  content: "+";
  font-size: 16px;
  line-height: 1;
  place-items: center;
  transform: translateY(-50%);
}

.faq-list details[open] summary::after {
  content: "\2212";
}

.faq-list details p {
  margin: 0;
  padding: 0 18px 18px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.9;
}

.faq-list code {
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(10, 23, 40, 0.06);
  color: var(--gold-deep);
  font-size: 0.92em;
}

/* ---------- 14. 转化区 ---------- */

.cta-panel {
  display: grid;
  gap: 22px;
  padding: 26px 22px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(ellipse 80% 90% at 92% 0%, rgba(200, 163, 90, 0.18), transparent 60%),
    linear-gradient(155deg, #091728 0%, #122a47 58%, #091728 100%);
  box-shadow: 0 22px 46px rgba(6, 15, 28, 0.24);
  color: var(--white);
}

.cta-panel h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(20px, 5vw, 27px);
  font-weight: 700;
  line-height: 1.38;
}

.cta-panel h2::after {
  display: block;
  width: 56px;
  height: 3px;
  margin-top: 12px;
  content: "";
  border-radius: 999px;
  background: var(--gold);
}

.cta-lead {
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 13.5px;
  line-height: 1.88;
}

.cta-panel h3 {
  margin: 20px 0 12px;
  color: var(--gold-soft);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.prep-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.prep-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 13.5px;
  line-height: 1.7;
}

.prep-list svg {
  flex: none;
  width: 26px;
  height: 26px;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.qr-card {
  justify-self: start;
  padding: 14px 18px;
  border-radius: 14px;
  background: var(--white);
  box-shadow: 0 12px 28px rgba(3, 9, 18, 0.28);
  color: var(--ink);
  text-align: center;
}

.qr-card img {
  width: 138px;
  height: auto;
  margin: 0 auto;
  border-radius: 8px;
}

.qr-card strong {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  font-size: 13px;
}

.qr-card strong svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- 15. 页脚 ---------- */

.site-footer {
  margin-top: 52px;
  padding: 34px 20px 26px;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.34);
  color: var(--muted);
}

.footer-inner {
  display: grid;
  gap: 26px;
  width: min(1200px, 100%);
  margin: 0 auto;
}

.footer-brand img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.footer-brand p {
  margin: 10px 0 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 700;
}

.footer-brand .footer-desc {
  max-width: 280px;
  margin-top: 6px;
  color: var(--muted);
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 400;
  line-height: 1.85;
}

.footer-col {
  display: grid;
  align-content: start;
  gap: 9px;
}

.footer-col h2 {
  margin: 0 0 2px;
  color: var(--gold-deep);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.footer-col a {
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  text-underline-offset: 3px;
}

.footer-col a:hover,
.footer-col a:focus-visible {
  color: var(--gold-deep);
  text-decoration: underline;
}

.footer-qr {
  justify-items: start;
}

.footer-qr img {
  width: 96px;
  height: auto;
  padding: 5px;
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.footer-qr span {
  font-size: 12px;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 14px;
  width: min(1200px, 100%);
  margin: 26px auto 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted-soft);
  font-size: 11.5px;
  line-height: 1.7;
  text-align: center;
}

.footer-legal a {
  text-underline-offset: 3px;
}

.footer-legal a:hover {
  color: var(--gold-deep);
}

/* ---------- 16. 响应式 ---------- */

@media (min-width: 640px) {
  .section {
    padding: 58px 28px 0;
  }

  .band .section {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .chain {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .support-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .why-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

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

  .cta-panel {
    padding: 30px 28px;
  }

  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
  }
}

@media (min-width: 900px) {
  .cta-panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .hero {
    min-height: calc(100vh - var(--header-h));
  }

  .hero-inner {
    padding: 62px 40px 56px;
  }

  .hero h1 {
    font-size: 46px;
  }

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

  .hero-lead strong {
    font-size: 19px;
  }

  .section {
    padding: 74px 40px 0;
  }

  .section--last {
    padding-bottom: 74px;
  }

  .band .section {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .section-header {
    margin-bottom: 32px;
  }

  .section-header > p:not(.eyebrow) {
    font-size: 15px;
  }

  /* 四条服务主线：桌面端 2×2，卡片保持足够的文字宽度 */
  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .service-card {
    padding: 26px;
  }

  .chain {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
  }

  .chain li::before {
    top: 0;
    right: 0;
    bottom: auto;
    left: 0;
    width: auto;
    height: 2px;
    background: linear-gradient(90deg, var(--gold), rgba(200, 163, 90, 0.08));
  }

  .chain-no {
    margin-top: 8px;
  }

  .why-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .cta-panel {
    padding: 40px 44px;
  }

  .qr-card {
    justify-self: end;
  }

  .footer-inner {
    grid-template-columns: 1.4fr 1fr 1fr auto;
    gap: 40px;
  }
}

@media (orientation: landscape) and (max-height: 540px) {
  .hero {
    min-height: calc(100svh - var(--header-h));
  }

  .hero::before {
    background:
      linear-gradient(90deg, rgba(4, 10, 20, 0.86) 0%, rgba(4, 10, 20, 0.54) 48%, rgba(4, 10, 20, 0.12) 100%),
      linear-gradient(180deg, rgba(4, 10, 20, 0.08), rgba(4, 10, 20, 0.5));
  }

  .hero-media img {
    object-position: center;
  }

  .hero-inner {
    padding: 18px 24px 20px;
  }

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

  .hero h1::after {
    margin-top: 10px;
  }

  .hero-lead {
    margin-top: 14px;
    font-size: 12.5px;
    line-height: 1.68;
  }

  .hero-actions {
    margin-top: 14px;
  }
}

/* ---------- 17. 动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}