/* ============================================================
   丞硕 · 官网共享样式
   色板：深墨蓝 #0E2A47（主） / 金铜 #B08A4A（点缀） / 深墨绿 #10352F
   ============================================================ */

:root {
  --navy: #0E2A47;
  --navy-deep: #0A1F35;
  --navy-2: #16395C;
  --green: #10352F;
  --green-deep: #0B2621;
  --gold: #B08A4A;
  --gold-deep: #97733A;
  --gold-light: #D9BE8C;
  --gold-faint: #F3EAD8;
  --bg-soft: #F6F7F9;
  --line: #E5E8ED;
  --text: #22303F;
  --text-2: #5B6B7C;
  --text-3: #8A97A5;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", STSong, SimSun, serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --shadow: 0 12px 40px rgba(14, 42, 71, .10);
  --radius: 6px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--text);
  background: #fff;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

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

h1, h2, h3, .serif { font-family: var(--serif); font-weight: 600; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 4px; border: 1px solid transparent;
  font-size: 15px; letter-spacing: 1px; cursor: pointer;
  transition: all .25s ease; font-family: var(--sans); line-height: 1.4;
}
.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { background: var(--gold-deep); transform: translateY(-1px); }
.btn-outline-dark { border-color: var(--navy); color: var(--navy); background: transparent; }
.btn-outline-dark:hover { background: var(--navy); color: #fff; }
.btn-outline-light { border-color: rgba(255,255,255,.65); color: #fff; background: transparent; }
.btn-outline-light:hover { border-color: var(--gold-light); color: var(--gold-light); }
.btn-sm { padding: 9px 18px; font-size: 13.5px; }
.btn-lg { padding: 15px 36px; font-size: 16px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line); transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: 0 4px 24px rgba(14,42,71,.08); }
.header-inner { display: flex; align-items: center; height: 76px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { height: 46px; width: auto; }
.brand-text { line-height: 1.25; }
.brand-name { font-family: var(--serif); font-size: 23px; color: var(--navy); letter-spacing: 4px; }
.brand-sub { font-size: 10.5px; color: var(--text-3); letter-spacing: 2.6px; text-transform: uppercase; }
.main-nav { margin-left: auto; }
.main-nav ul { display: flex; gap: 30px; }
.main-nav a { font-size: 15px; color: var(--text); padding: 6px 0; position: relative; white-space: nowrap; }
.main-nav a:hover, .main-nav a.active { color: var(--gold); }
.main-nav a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px;
  height: 2px; background: var(--gold);
}
.header-ctas { display: flex; gap: 12px; margin-left: 8px; flex-shrink: 0; }
.nav-ctas-mobile { display: none; }
.nav-toggle {
  display: none; margin-left: auto; background: none; border: none; cursor: pointer;
  width: 40px; height: 40px; position: relative;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--navy);
  margin: 5px auto; transition: all .3s;
}

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(128deg, var(--navy-deep) 0%, var(--navy) 52%, var(--navy-2) 100%);
}
.hero::before {
  content: ""; position: absolute; right: -160px; top: -220px;
  width: 720px; height: 720px; border-radius: 50%;
  background: radial-gradient(circle, rgba(176,138,74,.16) 0%, transparent 62%);
}
.hero::after {
  content: ""; position: absolute; left: -120px; bottom: -320px;
  width: 560px; height: 560px; border-radius: 50%;
  border: 1px solid rgba(217,190,140,.14);
}
.hero-grid {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center;
  padding: 96px 0 84px;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--gold-light); font-size: 14px; letter-spacing: 2.5px; margin-bottom: 22px;
}
.hero-eyebrow::before { content: ""; width: 34px; height: 1px; background: var(--gold-light); }
.hero h1 {
  font-size: clamp(34px, 4.6vw, 54px); line-height: 1.3; letter-spacing: 2px; margin-bottom: 22px;
}
.hero h1 em { font-style: normal; color: var(--gold-light); }
.hero-sub {
  font-size: 16.5px; color: rgba(255,255,255,.82); max-width: 560px; margin-bottom: 38px; line-height: 1.9;
}
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 30px; }
.hero-note { font-size: 13px; color: rgba(255,255,255,.5); letter-spacing: 1px; }
.hero-art { position: relative; display: flex; justify-content: center; }
.hero-art img { width: 100%; max-width: 470px; filter: drop-shadow(0 24px 48px rgba(0,0,0,.35)); }
.hero-ring {
  position: absolute; border-radius: 50%; border: 1px solid rgba(217,190,140,.18);
}
.hero-ring.r1 { width: 520px; height: 520px; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.hero-ring.r2 { width: 640px; height: 640px; top: 50%; left: 50%; transform: translate(-50%,-50%); border-color: rgba(217,190,140,.09); }
.hero-strip { position: relative; z-index: 2; border-top: 1px solid rgba(255,255,255,.12); }
.hero-strip-inner {
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 16px 0; font-size: 13px; color: rgba(255,255,255,.62); letter-spacing: 1px;
}
.hero-strip a { color: rgba(255,255,255,.62); }
.hero-strip a:hover { color: var(--gold-light); }

/* ---------- 数据背书条 ---------- */
.stats { padding: 66px 0 58px; background: #fff; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.stat { border-top: 3px solid var(--gold); padding-top: 22px; }
.stat-num { font-family: var(--serif); font-size: 40px; color: var(--navy); line-height: 1.15; }
.stat-num small { font-size: 18px; margin-left: 4px; color: var(--gold); }
.stat-label { font-size: 14px; color: var(--text-2); margin-top: 6px; }

/* ---------- 通用 Section ---------- */
.section { padding: 92px 0; }
.section.soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-eyebrow {
  color: var(--gold); font-size: 13px; letter-spacing: 4px; margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(26px, 3vw, 36px); color: var(--navy); letter-spacing: 2px; }
.section-head .divider {
  width: 46px; height: 2px; background: var(--gold); margin: 20px auto 0;
}
.section-sub { margin-top: 16px; color: var(--text-2); font-size: 15.5px; }

/* ---------- 业务板块 ---------- */
.cards-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px 28px; transition: all .3s ease; position: relative;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.card-icon { height: 54px; margin-bottom: 22px; }
.card-icon svg { height: 100%; width: auto; }
.card h3 { font-size: 20px; color: var(--navy); margin-bottom: 12px; letter-spacing: 1px; }
.card p { font-size: 14.5px; color: var(--text-2); line-height: 1.85; margin-bottom: 18px; }
.card-link { font-size: 13px; color: var(--gold); letter-spacing: 1px; }
.card-link:hover { color: var(--gold-deep); }
.card::after {
  content: ""; position: absolute; left: 28px; bottom: 0; width: 0; height: 2px;
  background: var(--gold); transition: width .35s ease;
}
.card:hover::after { width: 56px; }

/* ---------- 为什么选择丞硕 ---------- */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px 64px; }
.why-item { display: flex; gap: 20px; }
.why-num {
  font-family: var(--serif); font-size: 30px; color: var(--gold);
  line-height: 1; padding-top: 4px; flex-shrink: 0;
}
.why-item h3 { font-size: 19px; color: var(--navy); margin-bottom: 10px; letter-spacing: 1px; }
.why-item p { font-size: 14.5px; color: var(--text-2); line-height: 1.85; }

/* ---------- 交易流程（深蓝带） ---------- */
.process { background: linear-gradient(160deg, var(--navy) 0%, var(--navy-deep) 100%); color: #fff; }
.process .section-eyebrow { color: var(--gold-light); }
.process .section-head h2 { color: #fff; }
.process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 28px; }
.step { position: relative; padding-top: 8px; }
.step-num { font-family: var(--serif); font-size: 36px; color: var(--gold-light); line-height: 1; margin-bottom: 16px; }
.step h3 { font-size: 17px; margin-bottom: 10px; letter-spacing: 1px; }
.step p { font-size: 13.5px; color: rgba(255,255,255,.62); line-height: 1.8; }
.step:not(:last-child)::after {
  content: ""; position: absolute; top: 26px; right: -24px; width: 20px; height: 1px;
  background: linear-gradient(90deg, rgba(217,190,140,.6), transparent);
}

/* ---------- 精选资产 ---------- */
.asset-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.asset-card {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: #fff; transition: all .3s;
}
.asset-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.asset-thumb {
  height: 140px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  position: relative; overflow: hidden;
}
.asset-thumb::after {
  content: ""; position: absolute; right: -46px; bottom: -46px; width: 150px; height: 150px;
  border-radius: 50%; border: 1px solid rgba(217,190,140,.25);
}
.asset-thumb .asset-char {
  font-family: var(--serif); font-size: 44px; color: var(--gold-light); letter-spacing: 6px;
}
.asset-body { padding: 22px 22px 24px; }
.asset-body h3 { font-size: 16px; color: var(--navy); margin-bottom: 8px; line-height: 1.5; }
.asset-meta { font-size: 12.5px; color: var(--text-3); margin-bottom: 14px; }
.asset-foot { display: flex; justify-content: space-between; align-items: center; }
.asset-price { font-size: 13px; color: var(--gold-deep); }
.chip {
  font-size: 12px; padding: 3px 12px; border-radius: 20px; letter-spacing: 1px;
}
.chip-open { border: 1px solid var(--gold); color: var(--gold-deep); }
.chip-dealing { border: 1px solid var(--text-3); color: var(--text-2); }
.chip-done { background: var(--navy); color: var(--gold-light); border: 1px solid var(--navy); }
.asset-note {
  text-align: center; margin-top: 40px; font-size: 13.5px; color: var(--text-2);
}
.asset-note a { color: var(--gold); border-bottom: 1px solid var(--gold); }
.demo-badge {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  font-size: 11px; letter-spacing: 2px; color: var(--gold-light);
  border: 1px solid rgba(217,190,140,.5); padding: 2px 10px; border-radius: 3px;
  background: rgba(10,31,53,.55);
}

/* ---------- 招商专区（深绿带） ---------- */
.invest { background: linear-gradient(150deg, var(--green) 0%, var(--green-deep) 100%); color: #fff; }
.invest .section-eyebrow { color: var(--gold-light); }
.invest-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.invest h2 { font-size: clamp(26px, 3vw, 34px); letter-spacing: 2px; margin-bottom: 20px; }
.invest .lead { font-size: 15.5px; color: rgba(255,255,255,.78); line-height: 1.95; margin-bottom: 34px; }
.invest-list li {
  display: flex; gap: 12px; align-items: baseline;
  font-size: 14.5px; color: rgba(255,255,255,.85); padding: 9px 0;
  border-bottom: 1px dashed rgba(255,255,255,.14);
}
.invest-list li::before { content: "—"; color: var(--gold-light); flex-shrink: 0; }
.invest-ctas { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }

/* ---------- 资讯 ---------- */
.insights-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.insight-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; transition: all .3s; position: relative;
}
.insight-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.insight-top { display: flex; gap: 10px; align-items: center; margin-bottom: 18px; }
.tag {
  font-size: 12px; color: var(--gold-deep); border: 1px solid var(--gold);
  padding: 2px 12px; border-radius: 3px; letter-spacing: 1px;
}
.date { font-size: 12px; color: var(--text-3); }
.insight-card h3 { font-size: 17px; color: var(--navy); line-height: 1.65; margin-bottom: 12px; }
.insight-card p { font-size: 13.5px; color: var(--text-2); }
.insights-more { text-align: center; margin-top: 44px; }

/* ---------- CTA 带 ---------- */
.cta-band { background: linear-gradient(128deg, var(--navy-deep), var(--navy-2)); color: #fff; text-align: center; }
.cta-band h2 { font-size: clamp(24px, 2.8vw, 32px); letter-spacing: 2px; margin-bottom: 14px; }
.cta-band p { color: rgba(255,255,255,.7); font-size: 15px; margin-bottom: 34px; }
.cta-band .hero-ctas { justify-content: center; margin-bottom: 0; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy-deep); color: rgba(255,255,255,.72); }
.footer-grid {
  display: grid; grid-template-columns: 2.1fr 1fr 1fr 1.35fr; gap: 48px;
  padding: 64px 0 48px;
}
.footer-brand img { width: 130px; margin-bottom: 16px; }
.footer-brand .brand-name { color: #fff; font-size: 21px; display: block; margin-bottom: 4px; }
.footer-brand .brand-sub { color: rgba(255,255,255,.4); }
.declaration {
  font-size: 12.5px; color: rgba(255,255,255,.48); line-height: 1.95;
  margin-top: 18px; text-align: justify;
}
.site-footer h4 {
  color: var(--gold-light); font-size: 14px; letter-spacing: 3px;
  font-weight: 500; margin-bottom: 20px; font-family: var(--sans);
}
.footer-links li { margin-bottom: 11px; }
.footer-links a { font-size: 13.5px; color: rgba(255,255,255,.68); }
.footer-links a:hover { color: var(--gold-light); }
.contact-line { font-size: 13.5px; margin-bottom: 12px; display: flex; gap: 10px; }
.contact-line b { color: rgba(255,255,255,.45); font-weight: 400; flex-shrink: 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); }
.footer-bottom-inner {
  display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 20px 0; font-size: 12px; color: rgba(255,255,255,.4);
}
.footer-bottom a { color: rgba(255,255,255,.4); margin-left: 18px; }
.footer-bottom a:hover { color: var(--gold-light); }

/* ---------- 子页 ---------- */
.page-hero {
  background: linear-gradient(128deg, var(--navy-deep), var(--navy-2));
  color: #fff; padding: 66px 0 60px;
}
.page-hero h1 { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: 2px; margin-bottom: 14px; }
.page-hero p { color: rgba(255,255,255,.72); font-size: 15px; max-width: 640px; line-height: 1.9; }
.breadcrumb { font-size: 12.5px; color: rgba(255,255,255,.45); margin-bottom: 18px; letter-spacing: 1px; }
.breadcrumb a { color: rgba(255,255,255,.45); }
.breadcrumb a:hover { color: var(--gold-light); }

/* ---------- 表单页 ---------- */
.form-layout {
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 36px; align-items: start;
  padding: 72px 0 96px;
}
.form-card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 44px; }
.form-card > h2 { font-size: 21px; color: var(--navy); letter-spacing: 1px; margin-bottom: 6px; }
.form-card .form-desc { font-size: 13.5px; color: var(--text-2); margin-bottom: 32px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 24px; }
.field.full { grid-column: 1 / -1; }
.field label { display: block; font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 8px; }
.field label .req { color: #C0392B; margin-left: 3px; }
.field label .opt { color: var(--text-3); font-weight: 400; font-size: 12px; margin-left: 6px; }
.field input, .field select, .field textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 4px;
  padding: 12px 14px; font-size: 15px; font-family: var(--sans); color: var(--text);
  background: #fff; transition: border-color .2s, box-shadow .2s; outline: none;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--gold); box-shadow: 0 0 0 3px rgba(176,138,74,.14);
}
.field textarea { min-height: 110px; resize: vertical; }
.field .hint { font-size: 12px; color: var(--text-3); margin-top: 6px; }
.radio-row, .check-row { display: flex; gap: 22px; flex-wrap: wrap; padding-top: 2px; }
.radio-row label, .check-row label {
  display: inline-flex; align-items: center; gap: 7px; font-weight: 400;
  font-size: 14px; color: var(--text); margin: 0; cursor: pointer;
}
.radio-row input, .check-row input { width: 16px; height: 16px; accent-color: var(--gold); }
.consent { display: flex; gap: 9px; align-items: flex-start; margin: 26px 0 24px; }
.consent input { width: 16px; height: 16px; margin-top: 3px; accent-color: var(--gold); flex-shrink: 0; }
.consent p { font-size: 12.5px; color: var(--text-2); line-height: 1.8; }
.consent a { color: var(--gold); border-bottom: 1px solid var(--gold); }
.form-actions { display: flex; gap: 14px; align-items: center; }
.form-success {
  display: none; text-align: center; padding: 40px 20px;
}
.form-success.show { display: block; }
.form-success .ok-icon { font-size: 44px; color: var(--gold); margin-bottom: 16px; }
.form-success h3 { font-size: 20px; color: var(--navy); margin-bottom: 10px; }
.form-success p { font-size: 14px; color: var(--text-2); }

/* 侧栏卡片 */
.side-card {
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
  padding: 30px 28px; margin-bottom: 24px;
}
.side-card h3 { font-size: 17px; color: var(--navy); margin-bottom: 16px; letter-spacing: 1px; }
.side-card ul li {
  display: flex; gap: 10px; font-size: 13.5px; color: var(--text-2);
  padding: 7px 0; line-height: 1.7;
}
.side-card ul li::before { content: "✓"; color: var(--gold); flex-shrink: 0; }
.side-card.contact p { font-size: 13.5px; color: var(--text-2); margin-bottom: 8px; }
.side-card.contact b { color: var(--navy); font-size: 17px; }

/* ---------- 合规页 ---------- */
.legal-wrap { max-width: 880px; margin: 0 auto; padding: 72px 24px 96px; }
.legal-wrap h2 {
  font-size: 22px; color: var(--navy); letter-spacing: 1px;
  margin: 48px 0 18px; padding-top: 20px; border-top: 1px solid var(--line);
}
.legal-wrap h2:first-of-type { border-top: none; margin-top: 0; padding-top: 0; }
.legal-wrap h3 { font-size: 16px; color: var(--navy); margin: 24px 0 10px; }
.legal-wrap p { font-size: 14.5px; color: var(--text-2); line-height: 2; margin-bottom: 12px; text-align: justify; }
.legal-wrap ul { margin: 0 0 14px 2px; }
.legal-wrap ul li {
  font-size: 14.5px; color: var(--text-2); line-height: 2; padding-left: 18px; position: relative;
}
.legal-wrap ul li::before { content: "·"; position: absolute; left: 2px; color: var(--gold); font-weight: 700; }
.notice-box {
  background: var(--gold-faint); border-left: 3px solid var(--gold);
  padding: 20px 24px; margin: 18px 0; border-radius: 0 4px 4px 0;
}
.notice-box p { margin-bottom: 8px; }
.notice-box p:last-child { margin-bottom: 0; }
.legal-toc {
  background: var(--bg-soft); border-radius: 6px; padding: 22px 28px; margin-bottom: 40px;
}
.legal-toc b { font-size: 14px; color: var(--navy); display: block; margin-bottom: 10px; letter-spacing: 1px; }
.legal-toc a {
  font-size: 13.5px; color: var(--text-2); margin-right: 22px; line-height: 2.1;
}
.legal-toc a:hover { color: var(--gold); }

/* ---------- 占位页 ---------- */
.stub-main { text-align: center; padding: 110px 24px 130px; }
.stub-main img { width: 110px; margin: 0 auto 30px; opacity: .9; }
.stub-main h1 { font-size: 28px; color: var(--navy); letter-spacing: 2px; margin-bottom: 14px; }
.stub-main p { color: var(--text-2); font-size: 14.5px; margin-bottom: 36px; }

/* ---------- 移动端底部快捷条 ---------- */
.mobile-bar { display: none; }

/* ---------- 入场动效 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1200px) {
  .main-nav {
    display: none; position: absolute; top: 76px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 10px 24px 22px; box-shadow: 0 20px 40px rgba(14,42,71,.10);
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; gap: 4px; }
  .main-nav a { display: block; padding: 12px 0; font-size: 15.5px; border-bottom: 1px dashed var(--line); }
  .nav-ctas-mobile { display: flex; gap: 12px; margin-top: 18px; }
  .nav-ctas-mobile .btn { flex: 1; }
  .nav-toggle { display: block; }
  .header-ctas { display: none; }
}

@media (max-width: 1080px) {
  .cards-4, .asset-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(3, 1fr); gap: 36px 28px; }
  .step:nth-child(3)::after { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 36px 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; padding: 64px 0 56px; gap: 36px; }
  .hero-art img { max-width: 330px; }
  .hero-ring.r1 { width: 380px; height: 380px; }
  .hero-ring.r2 { width: 470px; height: 470px; }
  .invest-grid { grid-template-columns: 1fr; gap: 40px; }
  .why-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-layout { grid-template-columns: 1fr; padding: 48px 0 96px; }
  .form-card { padding: 30px 24px; }
  .insights-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
}

@media (max-width: 620px) {
  .cards-4, .asset-grid, .process-grid, .stats-grid { grid-template-columns: 1fr; }
  .process-grid { gap: 34px; }
  .step:not(:last-child)::after { display: none; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; padding: 52px 0 40px; }
  .footer-bottom-inner { justify-content: center; text-align: center; }
  .brand-name { font-size: 19px; letter-spacing: 3px; }
  .brand img { height: 38px; }
  .header-inner { height: 64px; }
  .main-nav { top: 64px; }
  body { padding-bottom: 54px; }
  .mobile-bar {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
    background: var(--navy); box-shadow: 0 -6px 24px rgba(10,31,53,.28);
  }
  .mobile-bar a {
    flex: 1; text-align: center; padding: 15px 4px; color: #fff; font-size: 14px;
    letter-spacing: 1px; border-right: 1px solid rgba(255,255,255,.12);
  }
  .mobile-bar a:last-child { border-right: none; }
  .mobile-bar a.gold { background: var(--gold); }
}

/* ---------- 内容页扩展组件（由 tools/build-static-pages.js 使用） ---------- */
.cards-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 900px) { .cards-2, .cards-3 { grid-template-columns: 1fr; } }
.process-list { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 20px; }
.process-list li { display: flex; gap: 18px; align-items: flex-start; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 20px 24px; }
.step-no { font-family: var(--serif); font-size: 26px; color: var(--gold); line-height: 1.1; min-width: 44px; }
.process-list h3 { font-size: 16.5px; color: var(--navy); margin-bottom: 6px; }
.process-list p { color: var(--text-2); font-size: 14px; line-height: 1.85; }
.timeline { list-style: none; margin: 18px 0 0; padding: 0; border-left: 2px solid var(--gold-faint, #EFE6D2); }
.timeline li { position: relative; padding: 0 0 22px 26px; }
.timeline li::before { content: ''; position: absolute; left: -7px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--gold, #B08A4A); }
.timeline b { display: block; font-family: var(--serif); color: var(--navy); font-size: 17px; margin-bottom: 4px; }
.timeline span { color: var(--text-2); font-size: 14px; line-height: 1.8; }
.fact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 24px; }
@media (max-width: 700px) { .fact-grid { grid-template-columns: 1fr; } }
.fact { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 16px 20px; }
.fact b { display: block; color: var(--gold-deep, #8A6A2F); font-size: 13px; margin-bottom: 4px; letter-spacing: 1px; }
.fact span { color: var(--navy); font-size: 15px; }
.contact-lines { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 14px; }
.contact-lines li { display: flex; gap: 16px; align-items: baseline; border-bottom: 1px dashed var(--line); padding-bottom: 12px; }
.contact-lines b { min-width: 84px; color: var(--navy); font-size: 14px; }
.contact-lines span { color: var(--text-2); font-size: 14px; }
.svc-p { color: var(--text-2); line-height: 2; font-size: 15px; max-width: 780px; }
.cap-label { font-size: 12.5px; color: var(--text-2); display: block; margin-bottom: 6px; }
.captcha-row { display: flex; gap: 14px; align-items: flex-end; }
.form-error { color: #C0392B; font-size: 13px; margin-top: 10px; }

/* ============ 二期：首页公告条 / 资讯中心动态页 / 文章详情 ============ */
.notice-strip { background:#FDF7EA; border-top:1px solid #EADFC8; border-bottom:1px solid #EADFC8; padding:14px 0; }
.notice-strip-inner { display:flex; align-items:center; gap:18px; }
.notice-label { flex-shrink:0; font-size:12.5px; letter-spacing:2px; color:#97733A; border:1px solid #D8C49A; border-radius:3px; padding:3px 10px; background:#fff; }
.notice-links { display:flex; gap:26px; flex-wrap:wrap; min-width:0; }
.notice-links a { color:var(--navy); font-size:14px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:420px; }
.notice-links a:hover { color:#97733A; }
.notice-links a em { font-style:normal; color:var(--text-3); font-size:12px; margin-left:8px; }
.ins-tabs { display:flex; gap:10px; margin:6px 0 22px; flex-wrap:wrap; }
.ins-tab { padding:7px 22px; border:1px solid var(--line); border-radius:20px; color:var(--text-2); font-size:14px; }
.ins-tab:hover { border-color:var(--gold-deep); color:var(--gold-deep); }
.ins-tab.on { background:var(--navy); border-color:var(--navy); color:#fff; }
.ins-pager { display:flex; justify-content:center; align-items:center; gap:18px; margin:26px 0 6px; }
.ins-pager a, .ins-pager span { color:var(--text-2); font-size:14px; }
.ins-pager a { color:var(--gold-deep); }
.ins-notice-list { list-style:none; }
.ins-notice-list li { display:flex; justify-content:space-between; gap:14px; padding:7px 0; border-bottom:1px dashed var(--line); }
.ins-notice-list li:last-child { border-bottom:0; }
.ins-notice-list a { color:var(--navy); font-size:14px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.ins-notice-list a:hover { color:var(--gold-deep); }
.ins-notice-list span { color:var(--text-3); font-size:12.5px; flex-shrink:0; }
.article-body { margin-top:22px; font-size:15.5px; line-height:2; color:var(--text); }
.article-body h2, .article-body h3, .article-body h4 { color:var(--navy); margin:26px 0 10px; font-size:19px; }
.article-body p { margin:12px 0; }
.article-body ul, .article-body ol { padding-left:24px; margin:12px 0; }
.article-body blockquote { border-left:3px solid var(--gold); padding:6px 0 6px 16px; color:var(--text-2); margin:14px 0; background:#FAF7F0; }
.article-body img { max-width:100%; height:auto; border-radius:8px; }
.article-body a { color:var(--gold-deep); }
@media (max-width:760px){ .notice-strip-inner{flex-direction:column;align-items:flex-start;gap:10px} .notice-links a{max-width:100%} }

/* 移动端保留头部账户入口（出让/寻购大按钮仍收进菜单） */
@media (max-width:1200px) {
  .header-ctas { display: flex !important; margin-left: auto; gap: 10px; }
  .user-entry { height: 36px; padding: 0 14px; }
}
/* 小屏：账户入口收缩为圆形图标，避免与品牌区挤压溢出 */
@media (max-width:600px) {
  .user-entry .u-txt { display: none; }
  .user-entry { width: 36px; min-width: 36px; padding: 0; justify-content: center; border-radius: 50%; }
  .header-inner { gap: 12px; }
  .brand-sub { display: none; }
  .brand-name { font-size: 20px; letter-spacing: 3px; }
  .brand img { height: 38px; }
}

/* ============ 导航下拉分组（知产库 / 查询工具） ============ */
.main-nav li.has-sub { position: relative; }
.main-nav .caret {
  display: inline-block; width: 6px; height: 6px; margin-left: 6px;
  border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg); transition: transform .22s;
}
.main-nav li.has-sub::after { content: ""; position: absolute; left: 0; right: 0; top: 100%; height: 14px; }
.main-nav .sub-nav {
  display: block; position: absolute; top: 100%; left: 50%; transform: translate(-50%, 10px);
  min-width: 132px; background: #fff; border: 1px solid var(--line); border-radius: 10px;
  box-shadow: 0 16px 38px rgba(14,42,71,.16); padding: 8px 0; margin: 0;
  list-style: none; opacity: 0; visibility: hidden; transition: opacity .22s ease, transform .22s ease, visibility .22s;
  z-index: 95;
}
.main-nav li.has-sub:hover .sub-nav, .main-nav li.has-sub:focus-within .sub-nav {
  opacity: 1; visibility: visible; transform: translate(-50%, 4px);
}
.main-nav li.has-sub:hover .caret { transform: rotate(225deg); }
.main-nav .sub-nav a {
  display: block; padding: 9px 20px; font-size: 14px; color: var(--text);
  white-space: nowrap; border-bottom: 0 !important;
}
.main-nav .sub-nav a:hover, .main-nav .sub-nav a.active { color: var(--gold); }
.main-nav .sub-nav a.active::after { display: none; }

@media (max-width: 1200px) {
  .main-nav li.has-sub::after { display: none; }
  .main-nav .caret { display: none; }
  .main-nav .sub-nav {
    position: static; transform: none; opacity: 1; visibility: visible;
    min-width: 0; border: 0; border-radius: 0; box-shadow: none; padding: 0 0 4px 16px; background: none;
  }
  .main-nav .sub-nav li { border-bottom: 1px dashed var(--line); }
  .main-nav .sub-nav a { padding: 10px 0; font-size: 14.5px; color: var(--text-2); }
}

/* ============ 三期：头部账户入口 / 用户中心 ============ */
.user-entry {
  display: inline-flex; align-items: center; gap: 7px;
  height: 38px; padding: 0 18px; border-radius: 999px;
  border: 1px solid #D8DEE6; background: #fff;
  font-size: 13.5px; color: var(--navy); white-space: nowrap;
  transition: color .22s, border-color .22s, background .22s;
}
.user-entry svg { width: 15px; height: 15px; flex: 0 0 auto; opacity: .72; }
.user-entry:hover { border-color: var(--gold); color: var(--gold-deep); background: #FDFBF6; }
.user-entry.logged { background: var(--navy); border-color: var(--navy); color: #fff; }
.user-entry.logged svg { opacity: .9; }
.user-entry.logged:hover { background: var(--gold-deep); border-color: var(--gold-deep); color: #fff; }
.uc-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 24px; align-items: start; }
.uc-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.uc-table th, .uc-table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); }
.uc-table th { color: var(--text-3); font-weight: 500; white-space: nowrap; }
.uc-table tr:last-child td { border-bottom: 0; }
@media (max-width: 1080px) { .uc-grid { grid-template-columns: 1fr; } }

/* ============ 账户页（登录 / 注册 / 找回 / 重置） ============ */
.auth-wrap { padding: 56px 20px 80px; max-width: 480px; }
.auth-card { padding: 42px 40px 34px; border-radius: 14px; box-shadow: 0 24px 60px rgba(14,42,71,.09); }
.auth-title { font-family: var(--serif); font-size: 26px; color: var(--navy); letter-spacing: 2px; margin-bottom: 8px; }
.auth-sub { font-size: 13.5px; color: var(--text-2); margin: 0 0 26px; }
.auth-card .ferr { color: #C0392B; font-size: 13.5px; min-height: 20px; margin: 0 0 10px; }
.auth-card .field { margin-bottom: 18px; }
.auth-card .field label { margin-bottom: 7px; }
.auth-card .field input { height: 46px; font-size: 15px; border-radius: 8px; }
.auth-card .captcha-row { display: flex; gap: 12px; align-items: stretch; margin-bottom: 4px; }
.auth-card .captcha-row input { flex: 1; height: 46px; border: 1px solid var(--line); border-radius: 8px; padding: 0 14px; font-size: 15px; outline: none; }
.auth-card .captcha-row input:focus { border-color: var(--gold-deep); }
.auth-card .captcha-row img { height: 46px; border-radius: 8px; cursor: pointer; }
.auth-card .form-actions { margin: 26px 0 0; }
.auth-card .form-actions .btn { width: 100%; justify-content: center; }
.auth-card .btn-lg { letter-spacing: 12px; text-indent: 12px; }
.auth-foot { margin: 24px 0 0; padding-top: 18px; border-top: 1px dashed var(--line);
  text-align: center; font-size: 13.5px; color: var(--text-2); }
.auth-foot a { color: var(--gold-deep); }
.auth-foot a:hover { text-decoration: underline; }
.auth-foot .dot { margin: 0 12px; color: var(--line); }