:root {
  --primary: #1a5fd0;
  --primary-dark: #0f3c8c;
  --primary-light: #3d80ec;
  --accent: #f5a623;
  --green: #0fa254;
  --bg: #f6f8fb;
  --text: #1d2436;
  --muted: #66708a;
  --card: #ffffff;
  --radius: 16px;
  --shadow: 0 8px 30px rgba(20, 40, 90, 0.08);
  --shadow-lg: 0 16px 48px rgba(20, 40, 90, 0.14);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }

/* ===== 导航 ===== */
header.site-header {
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 16px rgba(20,40,90,.08);
  position: sticky; top: 0; z-index: 100;
}
.nav { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 12px; }
.logo { font-size: 20px; font-weight: 800; color: var(--primary); display: flex; align-items: center; gap: 9px; white-space: nowrap; }
.logo .mark {
  width: 34px; height: 34px; border-radius: 10px; flex: none;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff; display: flex; align-items: center; justify-content: center; font-size: 18px;
}
.nav-links { display: flex; gap: 4px; flex-wrap: wrap; }
.nav-links a { padding: 8px 15px; border-radius: 10px; font-size: 15px; color: var(--muted); transition: all .2s; font-weight: 500; }
.nav-links a:hover { background: #eef3fc; color: var(--primary); }
.nav-links a.active { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(26,95,208,.35); }

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(135deg, #0f3c8c 0%, #1a5fd0 55%, #2f7de8 100%);
  padding: 92px 20px 96px; text-align: center;
}
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; pointer-events: none;
}
.hero::before { width: 460px; height: 460px; background: rgba(255,255,255,.06); top: -160px; right: -120px; }
.hero::after { width: 340px; height: 340px; background: rgba(255,255,255,.05); bottom: -140px; left: -100px; }
.hero .tag {
  display: inline-block; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.28);
  border-radius: 999px; padding: 6px 20px; font-size: 14px; margin-bottom: 22px; letter-spacing: 1px;
  position: relative;
}
.hero h1 { font-size: 44px; margin-bottom: 18px; letter-spacing: 1px; line-height: 1.3; position: relative; }
.hero h1 .hl { color: #ffd166; }
.hero p.sub { font-size: 17px; opacity: .92; max-width: 760px; margin: 0 auto 34px; position: relative; }
.hero .chips { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 38px; position: relative; }
.hero .chip { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); border-radius: 10px; padding: 8px 18px; font-size: 14px; }
.hero .container { position: relative; z-index: 2; }

/* 幻灯片 */
.hero-slider { position: relative; }
.hero-slide { display: none; padding: 92px 20px 96px; }
.hero-slide.active { display: block; animation: heroFade .55s ease; }
@keyframes heroFade { from { opacity: 0; transform: translateX(24px); } to { opacity: 1; transform: none; } }
.hero-slide .tag {
  display: inline-block; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.28);
  border-radius: 999px; padding: 6px 20px; font-size: 14px; margin-bottom: 22px; letter-spacing: 1px;
}
.hero-slide h1 { font-size: 44px; margin-bottom: 18px; letter-spacing: 1px; line-height: 1.3; }
.hero-slide h1 .hl { color: #ffd166; }
.hero-slide h2 { font-size: 36px; margin-bottom: 16px; letter-spacing: 1px; line-height: 1.35; }
.hero-slide h2 .hl { color: #ffd166; }
.hero-slide p.sub { font-size: 17px; opacity: .92; max-width: 760px; margin: 0 auto 34px; }
.hero-slide .chips { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 38px; }
.hero-slide .chip { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); border-radius: 10px; padding: 8px 18px; font-size: 14px; }

/* 幻灯片内图文（二维码页） */
.slide-flex { display: flex; align-items: center; justify-content: center; gap: 70px; max-width: 960px; margin: 0 auto; text-align: left; }
.slide-flex .slide-txt { flex: 1; }
.slide-flex .slide-txt ul.check-list li { color: rgba(255,255,255,.92); border-bottom-color: rgba(255,255,255,.14); }
.slide-flex .slide-txt ul.check-list li b { color: #ffd166; }
.slide-qr { flex: none; text-align: center; }
.slide-qr img {
  width: 210px; height: 210px; object-fit: contain; background: #fff;
  border-radius: 18px; padding: 14px; cursor: zoom-in; box-shadow: 0 12px 34px rgba(0,0,0,.3);
  transition: transform .25s;
}
.slide-qr img:hover { transform: scale(1.05); }
.slide-qr .qr-cap { margin-top: 12px; font-size: 14px; opacity: .9; }

/* 圆点与箭头 */
.hero-dots { display: flex; gap: 10px; justify-content: center; padding: 0 0 26px; position: relative; z-index: 5; }
.hero-dots button {
  width: 10px; height: 10px; border-radius: 999px; border: none; cursor: pointer;
  background: rgba(255,255,255,.38); transition: all .25s; padding: 0;
}
.hero-dots button.active { background: #fff; width: 28px; }
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 46px; height: 46px; border-radius: 50%; cursor: pointer;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.3);
  color: #fff; font-size: 20px; display: flex; align-items: center; justify-content: center;
  transition: background .2s;
}
.hero-arrow:hover { background: rgba(255,255,255,.3); }
.hero-arrow.prev { left: 26px; }
.hero-arrow.next { right: 26px; }
.btn {
  display: inline-block; padding: 13px 34px; border-radius: 999px; font-size: 16px; font-weight: 700;
  transition: transform .15s, box-shadow .15s; cursor: pointer;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,.2); }
.btn-light { background: #fff; color: var(--primary); }
.btn-accent { background: linear-gradient(135deg, #ffb84d, var(--accent)); color: #fff; box-shadow: 0 6px 18px rgba(245,166,35,.4); }
.btn-outline { border: 2px solid rgba(255,255,255,.85); color: #fff; margin-left: 12px; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; box-shadow: 0 6px 18px rgba(26,95,208,.35); }

/* ===== 品牌滚动条 ===== */
.brands-strip { background: #fff; padding: 26px 0; border-bottom: 1px solid #eef1f7; }
.brands-strip .label { text-align: center; color: var(--muted); font-size: 13px; letter-spacing: 2px; margin-bottom: 14px; }
.brand-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.brand-pill {
  background: #f2f6fd; border: 1px solid #e2eaf8; border-radius: 999px;
  padding: 8px 26px; font-weight: 700; color: var(--primary-dark); font-size: 15px;
  display: flex; align-items: center; gap: 8px; transition: all .2s;
}
.brand-pill:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.brand-pill .r { color: var(--green); font-size: 13px; font-weight: 600; }

/* ===== 区块 ===== */
section.block { padding: 76px 0; }
section.block.tinted { background: #fff; }
.section-title { text-align: center; font-size: 30px; margin-bottom: 12px; position: relative; }
.section-title .en { display: block; font-size: 13px; color: var(--primary-light); letter-spacing: 4px; font-weight: 600; margin-bottom: 6px; text-transform: uppercase; }
.section-sub { text-align: center; color: var(--muted); margin-bottom: 48px; font-size: 15px; max-width: 760px; margin-left: auto; margin-right: auto; }
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 30px; transition: transform .25s, box-shadow .25s; border: 1px solid #f0f3f9;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 14.5px; }
.icon-wrap {
  width: 56px; height: 56px; border-radius: 14px; margin-bottom: 18px;
  display: flex; align-items: center; justify-content: center; font-size: 27px;
  background: linear-gradient(135deg, #eaf1fd, #dde9fb);
}
.card .num-tag { color: var(--primary-light); font-weight: 800; font-size: 13px; letter-spacing: 2px; margin-bottom: 6px; display: block; }

/* ===== 数据条 ===== */
.stats-band { background: #fff; padding: 48px 0; }
.stats .grid-4 { text-align: center; }
.stat-num { font-size: 36px; font-weight: 800; background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-label { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* ===== 表格 ===== */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius); box-shadow: var(--shadow); }
.table-wrap .rebate-table { box-shadow: none; border-radius: 0; }
.rebate-table { width: 100%; min-width: 620px; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.rebate-table th, .rebate-table td { padding: 18px 22px; text-align: left; font-size: 15px; }
.rebate-table thead th { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; font-weight: 600; }
.rebate-table tbody tr { transition: background .2s; }
.rebate-table tbody tr:nth-child(even) { background: #f6f9fe; }
.rebate-table tbody tr:hover { background: #eef4fe; }
.rebate-table .rate { font-weight: 800; color: var(--green); font-size: 20px; }
.badge { display: inline-block; background: #e8f7ef; color: var(--green); border-radius: 6px; padding: 2px 10px; font-size: 12.5px; margin-left: 8px; font-weight: 600; }

/* ===== 返佣对比条 ===== */
.bar-item { margin-bottom: 22px; }
.bar-head { display: flex; justify-content: space-between; font-size: 15px; margin-bottom: 8px; font-weight: 600; }
.bar-track { height: 14px; background: #e8edf6; border-radius: 999px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--primary-light), var(--primary)); width: 0; transition: width 1.2s cubic-bezier(.22,.8,.3,1); }
.bar-fill.green { background: linear-gradient(90deg, #34c47c, var(--green)); }
.bar-fill.orange { background: linear-gradient(90deg, #ffc668, var(--accent)); }
.bar-fill.red { background: linear-gradient(90deg, #ff8f8f, #e5484d); }

/* ===== 流程 ===== */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.step { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px 16px; text-align: center; position: relative; transition: transform .2s; border: 1px solid #f0f3f9; }
.step:hover { transform: translateY(-4px); }
.step .num {
  width: 40px; height: 40px; border-radius: 50%; color: #fff; font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex; align-items: center; justify-content: center; margin: 0 auto 14px;
  box-shadow: 0 6px 14px rgba(26,95,208,.35);
}
.step:not(:last-child)::after {
  content: "→"; position: absolute; right: -16px; top: 50%; transform: translateY(-50%);
  color: #b8c6e0; font-size: 18px; font-weight: 700; z-index: 2;
}
.step h4 { font-size: 15.5px; margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--muted); }

/* ===== 收益计算器 ===== */
.calc-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 0; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); overflow: hidden; }
.calc-left { padding: 40px; border-right: 1px solid #eef1f7; }
.calc-left h3 { font-size: 20px; margin-bottom: 20px; }
.calc-field { margin-bottom: 22px; }
.calc-field label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 8px; font-weight: 600; }
.calc-field input[type=range] { width: 100%; accent-color: var(--primary); }
.calc-field input[type=number], .calc-field select {
  width: 100%; padding: 12px 14px; border: 1.5px solid #dfe6f2; border-radius: 10px;
  font-size: 16px; outline: none; transition: border .2s; background: #fbfcfe;
}
.calc-field input:focus, .calc-field select:focus { border-color: var(--primary); }
.calc-right { padding: 40px; background: linear-gradient(160deg, #0f3c8c, #1a5fd0 70%, #2f7de8); color: #fff; display: flex; flex-direction: column; justify-content: center; }
.calc-right .cap { font-size: 14px; opacity: .85; }
.calc-result { font-size: 46px; font-weight: 800; line-height: 1.2; margin: 6px 0 4px; color: #ffd166; }
.calc-note { font-size: 13px; opacity: .75; margin-top: 14px; }
.calc-mini { display: flex; gap: 24px; margin-top: 24px; flex-wrap: wrap; }
.calc-mini > div { font-size: 14px; opacity: .9; }
.calc-mini b { display: block; font-size: 20px; color: #fff; }

/* ===== 价格卡 ===== */
.price-card { text-align: center; position: relative; overflow: hidden; }
.price-card.hot { border: 2px solid var(--accent); }
.price-card .hot-tag {
  position: absolute; top: 18px; right: -34px; background: linear-gradient(135deg,#ffb84d,var(--accent));
  color: #fff; font-size: 12px; font-weight: 700; padding: 4px 40px; transform: rotate(40deg);
}
.price-card .price { font-size: 52px; font-weight: 800; color: var(--primary); line-height: 1.1; margin: 14px 0 2px; }
.price-card .price small { font-size: 20px; font-weight: 700; }
.price-card ul { list-style: none; margin: 22px 0 26px; text-align: left; }
.price-card ul li { padding: 9px 0; border-bottom: 1px dashed #eef1f7; font-size: 14.5px; color: var(--muted); display: flex; gap: 8px; }
.price-card ul li::before { content: "✔"; color: var(--green); font-weight: 800; }

/* ===== 二维码 ===== */
.qr-card { text-align: center; }
.qr-card img { width: 230px; height: 230px; object-fit: contain; margin: 0 auto 18px; border-radius: 14px; border: 1px solid #eef0f5; box-shadow: 0 8px 24px rgba(20,40,90,.1); }
.qr-card h3 { font-size: 17px; }
.qr-card p { font-size: 13.5px; }

/* ===== 适合人群 ===== */
.persona { display: flex; align-items: flex-start; gap: 14px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; border: 1px solid #f0f3f9; }
.persona .emoji { font-size: 32px; line-height: 1; }
.persona h4 { font-size: 16px; margin-bottom: 4px; }
.persona p { font-size: 13.5px; color: var(--muted); }

/* ===== FAQ ===== */
.faq-item { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 14px; overflow: hidden; border: 1px solid #f0f3f9; }
.faq-item summary { cursor: pointer; padding: 20px 26px; font-size: 16px; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .arrow { color: var(--primary); font-size: 20px; transition: transform .25s; }
.faq-item[open] summary .arrow { transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 26px 22px; color: var(--muted); font-size: 14.5px; }

/* ===== CTA ===== */
.cta-band { position: relative; overflow: hidden; background: linear-gradient(120deg, var(--primary-dark) 0%, var(--primary) 55%, #2f7de8 100%); color: #fff; padding: 68px 0; text-align: center; }
.cta-band::before { content: ""; position: absolute; width: 320px; height: 320px; border-radius: 50%; background: rgba(255,255,255,.06); top: -120px; left: -80px; }
.cta-band h2 { font-size: 28px; margin-bottom: 12px; position: relative; }
.cta-band p { opacity: .9; margin-bottom: 26px; position: relative; }

/* ===== 页脚 ===== */
footer.site-footer { background: #171e2e; color: #aab3c5; padding: 56px 0 28px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 36px; margin-bottom: 36px; }
.footer-grid h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer-grid a { display: block; margin-bottom: 8px; color: #aab3c5; transition: color .2s; }
.footer-grid a:hover { color: #fff; }
/* ===== 友情链接 ===== */
.friend-links { margin-bottom: 26px; }
.friend-links h4 { color: #fff; font-size: 14px; margin-bottom: 10px; }
.friend-links p { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.friend-links a { color: #8d97ad; font-size: 13px; transition: color .2s; }
.friend-links a:hover { color: #fff; }

.copyright { border-top: 1px solid #2c3450; padding-top: 22px; text-align: center; color: #7d879c; font-size: 13px; }.copyright a { color: #7d879c; }
.copyright a:hover { color: #fff; }

/* ===== 悬浮按钮 ===== */
.float-btns { position: fixed; right: 22px; bottom: 26px; display: flex; flex-direction: column; gap: 12px; z-index: 200; }
.float-btns a, .float-btns button {
  width: 52px; height: 52px; border-radius: 50%; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 24px;
  box-shadow: 0 8px 20px rgba(20,40,90,.25); transition: transform .2s; background: #fff;
}
.float-btns a:hover, .float-btns button:hover { transform: scale(1.1); }
.float-btns .wx { background: #0fa254; color: #fff; }
.float-btns .top { color: var(--primary); font-weight: 800; }

/* ===== 滚动动画（仅在 JS 可用时启用，避免 JS 失效导致内容不可见） ===== */
html.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
html.js .reveal.visible { opacity: 1; transform: none; }
html.js .reveal.d1 { transition-delay: .08s; } html.js .reveal.d2 { transition-delay: .16s; } html.js .reveal.d3 { transition-delay: .24s; } html.js .reveal.d4 { transition-delay: .32s; }

/* ===== 页头 ===== */
.page-hero { position: relative; overflow: hidden; color: #fff; background: linear-gradient(135deg, #0f3c8c 0%, #1a5fd0 60%, #2f7de8 100%); padding: 68px 0 76px; text-align: center; }
.page-hero::before { content: ""; position: absolute; width: 380px; height: 380px; border-radius: 50%; background: rgba(255,255,255,.06); top: -140px; right: -100px; }
.page-hero h1 { font-size: 36px; margin-bottom: 12px; position: relative; }
.page-hero p { opacity: .9; max-width: 720px; margin: 0 auto; font-size: 16px; position: relative; }

/* ===== 表单 ===== */
.form-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 36px; border: 1px solid #f0f3f9; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 7px; }
.form-field label .req { color: #e5484d; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; padding: 12px 14px; border: 1.5px solid #dfe6f2; border-radius: 10px;
  font-size: 15px; outline: none; transition: border .2s; background: #fbfcfe; font-family: inherit;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { border-color: var(--primary); }
.form-field textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: 12.5px; color: var(--muted); margin-top: 10px; }

/* ===== 信息列表 ===== */
.check-list { list-style: none; }
.check-list li { padding: 10px 0 10px 30px; position: relative; border-bottom: 1px dashed #eef1f7; font-size: 14.5px; color: var(--muted); }
.check-list li::before { content: "✓"; position: absolute; left: 4px; color: var(--green); font-weight: 800; }
.check-list li.no::before { content: "✕"; color: #e5484d; }
.check-list li b { color: var(--text); }

/* ===== 场景卡 ===== */
.scene-card { position: relative; overflow: hidden; }
.scene-card .scene-emoji { font-size: 34px; margin-bottom: 12px; display: block; }
.scene-card .scene-meta { margin-top: 14px; font-size: 13px; color: var(--primary); font-weight: 700; }

/* ===== 分栏图文 ===== */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: center; }
.split-img { text-align: center; }
.split-img img {
  width: 240px; height: 240px; object-fit: contain; margin: 0 auto;
  border-radius: 16px; border: 1px solid #eef0f5; box-shadow: 0 10px 30px rgba(20,40,90,.14);
  cursor: zoom-in; transition: transform .25s; background: #fff;
}
.split-img img:hover { transform: scale(1.04); }
.split-img .qr-cap { margin-top: 14px; font-size: 14px; color: var(--muted); }
.split-img .qr-cap b { color: var(--text); display: block; font-size: 17px; margin-bottom: 4px; }
.split h3.split-title { font-size: 24px; margin-bottom: 14px; }
.split .check-list li { border-bottom: none; padding: 8px 0 8px 30px; }

/* ===== 图片灯箱弹窗 ===== */
.lightbox {
  position: fixed; inset: 0; background: rgba(10, 15, 30, .88); z-index: 300;
  display: none; align-items: center; justify-content: center; flex-direction: column;
  cursor: zoom-out; backdrop-filter: blur(4px);
}
.lightbox.open { display: flex; animation: lbFade .22s ease; }
@keyframes lbFade { from { opacity: 0; } to { opacity: 1; } }
.lightbox img {
  width: min(82vw, 440px); height: min(78vh, 440px); object-fit: contain;
  background: #fff; border-radius: 18px; padding: 18px; cursor: default;
  animation: lbIn .25s ease;
}
@keyframes lbIn { from { opacity: 0; transform: scale(.92); } to { opacity: 1; transform: none; } }
.lightbox .lb-cap { color: #fff; margin-top: 18px; font-size: 15px; opacity: .9; }
.lightbox .lb-close {
  position: absolute; top: 18px; right: 28px; font-size: 36px; color: #fff;
  cursor: pointer; line-height: 1; user-select: none;
}
.lightbox .lb-hint { color: rgba(255,255,255,.55); font-size: 12.5px; margin-top: 8px; }

/* ===== 面包屑 ===== */
.breadcrumb { font-size: 13px; color: var(--muted); padding: 14px 0 0; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html.js .reveal { opacity: 1; transform: none; }
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:not(:last-child)::after { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1, .hero-slide h1 { font-size: 32px; }
  .hero-slide h2 { font-size: 27px; }
  .calc-wrap { grid-template-columns: 1fr; }
  .calc-left { border-right: none; border-bottom: 1px solid #eef1f7; }
  .form-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .slide-flex { flex-direction: column; gap: 30px; text-align: center; }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav { flex-direction: column; padding: 12px 0; gap: 8px; }
  .nav-links { flex-wrap: nowrap; overflow-x: auto; justify-content: flex-start; max-width: 100%; -webkit-overflow-scrolling: touch; }
  .nav-links a { white-space: nowrap; flex: none; }
  .hero { padding: 60px 0 70px; }
  .hero h1 { font-size: 27px; }
  .btn-outline { margin-left: 0; margin-top: 12px; }
  section.block { padding: 54px 0; }
}