/* 千悦集官网 · 设计系统 */
:root {
  --brand: #FF3D00;
  --brand-600: #E63500;
  --brand-700: #B02800;
  --brand-50: #FFF3EF;
  --brand-100: #FFE1D6;
  --brand-200: #FFC9AE;
  --gold: #F2A33C;
  --gold-50: #FFF6E9;
  --ink: #14161A;
  --ink-2: #4B5058;
  --ink-3: #8B9199;
  --neutral-50: #F5F6F8;
  --neutral-100: #E4E6EB;
  --line: #ECEDF1;
  --bg: #FFFFFF;
  --bg-2: #FAFAFB;
  --bg-warm: #FFF8F5;
  --bg-sand: #FFF6EE;
  --radius-s: 10px;
  --radius: 16px;
  --radius-l: 24px;
  --shadow-s: 0 2px 8px rgba(20, 22, 26, .05);
  --shadow: 0 12px 32px rgba(20, 22, 26, .08);
  --shadow-brand: 0 14px 30px rgba(255, 61, 0, .22);
  --max: 1200px;
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.28; font-weight: 600; letter-spacing: -.2px; }
p { margin: 0; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* 页面切换淡入 */
body { opacity: 0; transition: opacity .32s ease; }
body.is-ready { opacity: 1; }
body.is-leaving { opacity: 0; }

/* 顶栏 */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.site-header.is-stuck { border-bottom-color: var(--line); box-shadow: 0 6px 20px rgba(20, 22, 26, .05); }
.header-inner { display: flex; align-items: center; gap: 20px; height: 78px; }
.brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand-logo { height: 54px; width: auto; border-radius: 12px; }
.brand-name {
  font-size: 25px; font-weight: 700; color: var(--ink); letter-spacing: 2.5px; line-height: 1;
  white-space: nowrap;
}
.brand-tag {
  font-size: 13px; color: var(--brand); font-weight: 600;
  padding: 3px 10px; background: var(--brand-50); border-radius: 999px; white-space: nowrap;
}
.nav { display: flex; align-items: center; gap: 5px; margin-left: auto; }
.nav-link {
  padding: 9px 16px; border-radius: 999px; font-size: 16.5px; color: var(--ink-2);
  transition: color .18s, background .18s; white-space: nowrap;
}
.nav-link:hover { color: var(--ink); background: var(--bg-2); }
.nav-link.active { color: var(--brand); background: var(--brand-50); font-weight: 600; }
.header-actions { flex: 0 0 auto; }
.menu-toggle {
  display: none; width: 40px; height: 40px; border: 1px solid var(--line); background: #fff;
  border-radius: 10px; padding: 9px 8px; flex-direction: column; justify-content: space-between; cursor: pointer;
}
.menu-toggle span { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s, opacity .2s; }
.menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 46px; padding: 0 24px; border-radius: 999px; font-size: 15px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; transition: transform .16s, box-shadow .2s, background .2s, color .2s;
  font-family: var(--font);
}
.btn-sm { height: 38px; padding: 0 18px; font-size: 14px; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: var(--shadow-brand); }
.btn-primary:hover { background: var(--brand-600); transform: translateY(-1px); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }
.btn-line { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .55); }
.btn-line:hover { background: rgba(255, 255, 255, .14); }

/* 区块 */
.section { padding: 88px 0; }
.section.tight { padding: 60px 0; }
.section.alt { background: var(--bg-warm); }
.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 600; color: var(--brand);
  background: var(--brand-50); padding: 4px 12px; border-radius: 999px; margin-bottom: 14px; letter-spacing: .4px;
}
.section-title {
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 800;
  letter-spacing: 1px;
  line-height: 1.32;
  background: linear-gradient(180deg, #17191D 30%, #43474F 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-head:not(.left) .section-title::after {
  content: "";
  display: block;
  width: 58px;
  height: 4px;
  border-radius: 999px;
  margin: 20px auto 0;
  background: linear-gradient(90deg, var(--brand-200), var(--brand));
}
.section-sub { margin-top: 16px; color: var(--ink-2); font-size: 16px; letter-spacing: .3px; }

/* 首屏 */
.hero {
  position: relative; overflow: hidden; padding: 76px 0 84px;
  background:
    radial-gradient(900px 420px at 82% 8%, #FFE7DD 0%, rgba(255, 231, 221, 0) 62%),
    radial-gradient(620px 380px at 8% 92%, #FFF1EA 0%, rgba(255, 241, 234, 0) 60%),
    linear-gradient(180deg, #FFFDFC 0%, #FFF7F3 100%);
}
.hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; gap: 56px; align-items: center; }
.hero h1 { font-size: 50px; letter-spacing: -1px; }
.hero h1 .accent { color: var(--brand); }
.hero-lead { margin-top: 20px; font-size: 17px; color: var(--ink-2); max-width: 560px; }
.hero-cta { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }
.hero-badges { display: flex; gap: 22px; margin-top: 34px; flex-wrap: wrap; }
.hero-badge { display: flex; align-items: center; gap: 9px; font-size: 14px; color: var(--ink-2); }
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand); flex: 0 0 auto; }

/* 手机模拟（直播界面） */
.phone-stage { position: relative; display: flex; justify-content: center; }
.phone {
  width: 296px; border-radius: 40px; background: #101216; padding: 9px;
  box-shadow: 0 30px 70px rgba(20, 22, 26, .22); position: relative;
}
.phone-screen { background: #fff; border-radius: 32px; overflow: hidden; }
.phone-top { display: flex; align-items: center; justify-content: space-between; padding: 10px 14px; font-size: 11.5px; color: #fff; }
.phone-stage-img {
  position: relative; height: 186px;
  background: linear-gradient(150deg, #FF7A45 0%, #FF3D00 55%, #C22C00 100%);
}
.phone-stage-img .host {
  position: absolute; inset: 0; display: flex; align-items: flex-end; justify-content: center;
}
.phone-stage-img .host-figure {
  width: 108px; height: 132px; border-radius: 54px 54px 10px 10px;
  background: linear-gradient(180deg, #FFE0D2 0%, #FFC1A8 100%); opacity: .92;
}
.live-badge {
  position: absolute; top: 12px; left: 12px; display: flex; align-items: center; gap: 6px;
  background: rgba(0, 0, 0, .42); color: #fff; font-size: 11px; padding: 4px 9px; border-radius: 999px;
}
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: #FF3D00; box-shadow: 0 0 0 0 rgba(255, 61, 0, .7); animation: pulse 1.8s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 9px rgba(255, 61, 0, 0); } 100% { box-shadow: 0 0 0 0 rgba(255, 61, 0, 0); } }
.phone-viewers { position: absolute; top: 12px; right: 12px; background: rgba(0, 0, 0, .42); color: #fff; font-size: 11px; padding: 4px 9px; border-radius: 999px; }
.chat-layer { position: absolute; left: 12px; bottom: 14px; right: 70px; display: flex; flex-direction: column; gap: 6px; }
.chat-bubble { background: rgba(0, 0, 0, .38); color: #fff; font-size: 11px; padding: 5px 10px; border-radius: 999px; width: fit-content; }
.phone-goods { padding: 13px 14px 15px; }
.goods-title { font-size: 13.5px; font-weight: 600; }
.goods-meta { display: flex; align-items: center; gap: 8px; margin-top: 7px; }
.goods-price { color: var(--brand); font-weight: 700; font-size: 18px; }
.goods-old { color: var(--ink-3); font-size: 12px; text-decoration: line-through; }
.goods-tag { font-size: 11px; color: var(--brand); background: var(--brand-50); padding: 2px 8px; border-radius: 6px; }
.goods-btn {
  margin-top: 12px; height: 40px; border-radius: 999px; background: var(--brand); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 600;
}
.float-card {
  position: absolute; background: #fff; border-radius: 14px; box-shadow: var(--shadow);
  padding: 12px 14px; border: 1px solid var(--line);
}
.float-card .fc-label { font-size: 11.5px; color: var(--ink-3); }
.float-card .fc-value { font-size: 18px; font-weight: 700; margin-top: 2px; }
.float-card .fc-value.brand { color: var(--brand); }
.fc-1 { top: 26px; left: -18px; }
.fc-2 { bottom: 60px; right: -26px; }
.fc-3 { bottom: -14px; left: 8px; }
.mini-bars { display: flex; align-items: flex-end; gap: 4px; height: 26px; margin-top: 6px; }
.mini-bars i { width: 6px; background: var(--brand-100); border-radius: 3px; display: block; }
.mini-bars i.on { background: var(--brand); }

/* 能力条 */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; }
.strip-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.strip-item { padding: 26px 20px; border-left: 1px solid var(--line); }
.strip-item:first-child { border-left: none; }
.strip-value { font-size: 24px; font-weight: 700; color: var(--brand); }
.strip-label { font-size: 13.5px; color: var(--ink-2); margin-top: 4px; }

/* 卡片网格 */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px;
  transition: transform .2s, box-shadow .22s, border-color .2s; position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--brand-100); }
.card-link { display: block; }
.card-arrow { position: absolute; top: 24px; right: 22px; color: var(--ink-3); transition: transform .2s, color .2s; }
.card-link:hover .card-arrow { transform: translateX(3px); color: var(--brand); }
.ico {
  width: 48px; height: 48px; border-radius: 14px; background: var(--brand-50); color: var(--brand);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.ico svg { width: 26px; height: 26px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.ico.gold { background: var(--gold-50); color: #B97516; }
.ico.ink { background: var(--neutral-50); color: var(--ink-2); }

/* 首屏 banner（海报卡片式：暖色光晕过渡，橙色卡片自然融入页面） */
.hero-banner {
  position: relative;
  background:
    radial-gradient(1100px 520px at 50% 36%, rgba(255, 116, 44, .12), rgba(255, 116, 44, 0) 70%),
    linear-gradient(180deg, #FFFCF9 0%, #FFE9D8 46%, #FFDCC2 66%, #FFF1E3 84%, #FFFAF5 100%);
  padding: 40px 0 52px; overflow: hidden;
}
.hero-banner-inner { position: relative; max-width: min(1700px, 94vw); margin: 0 auto; line-height: 0; }
.hero-banner img { width: 100%; display: block; border-radius: 26px; box-shadow: 0 26px 70px rgba(224, 55, 8, .22), 0 8px 24px rgba(224, 55, 8, .10); }
.hotspot { position: absolute; display: block; border-radius: 999px; cursor: pointer; }
.hotspot:hover { background: rgba(255, 255, 255, .14); box-shadow: 0 0 0 2px rgba(255, 255, 255, .55); }
.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; }
.card h3 { font-size: 17px; }
.card p { margin-top: 9px; color: var(--ink-2); font-size: 14.4px; }
.card .tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 15px; }
.tag { font-size: 12px; color: var(--ink-2); background: var(--bg-2); border: 1px solid var(--line); padding: 3px 9px; border-radius: 999px; }

/* 痛点 → 方案 */
.pain-board { display: grid; grid-template-columns: 1fr 96px 1fr; gap: 0; align-items: center; }
.pain-col { display: flex; flex-direction: column; gap: 14px; }
.pain-head { font-size: 14px; font-weight: 600; color: var(--ink-3); margin-bottom: 4px; letter-spacing: .5px; }
.pain-item {
  border-radius: var(--radius-s); padding: 15px 18px; font-size: 14.6px; display: flex; gap: 12px; align-items: flex-start;
}
.pain-item.bad { background: var(--neutral-50); border: 1px solid var(--neutral-100); color: var(--ink-2); }
.pain-item.bad .num { color: var(--ink-3); }
.pain-item.good { background: var(--brand-50); border: 1px solid var(--brand-200); color: var(--brand-700); }
.pain-item b { font-weight: 600; }
.pain-item .num { font-size: 12.5px; opacity: .7; font-variant-numeric: tabular-nums; }
.pain-item .mk { flex: 0 0 auto; font-weight: 700; opacity: .55; margin-right: 2px; }
.pain-mid { display: flex; flex-direction: column; gap: 14px; height: 100%; justify-content: center; }
.pain-mid span { height: 2px; background: linear-gradient(90deg, var(--brand-200), var(--brand)); border-radius: 2px; position: relative; }
.pain-mid span::after {
  content: ""; position: absolute; right: -1px; top: -3px; width: 8px; height: 8px;
  border-right: 2px solid var(--brand); border-top: 2px solid var(--brand); transform: rotate(45deg);
}

/* 流程步骤 */
.flow { display: flex; align-items: stretch; gap: 14px; flex-wrap: wrap; }
.flow-step {
  flex: 1 1 150px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px;
}
.flow-step .step-no {
  width: 26px; height: 26px; border-radius: 50%; background: var(--brand); color: #fff;
  font-size: 13px; display: flex; align-items: center; justify-content: center; font-weight: 600;
}
.flow-step h4 { font-size: 15px; margin-top: 12px; }
.flow-step p { font-size: 13.6px; color: var(--ink-2); margin-top: 6px; }

/* 合作模式 */
.coop-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.coop-card { border: 1px solid var(--line); border-radius: var(--radius-l); padding: 32px; background: #fff; }
.coop-card.hl { border-color: var(--brand); box-shadow: var(--shadow-brand); background: linear-gradient(180deg, #FFF8F5, #fff); }
.coop-badge { display: inline-block; font-size: 12.5px; font-weight: 600; color: var(--brand); background: var(--brand-50); padding: 4px 12px; border-radius: 999px; }
.coop-card h3 { font-size: 21px; margin-top: 14px; }
.coop-card .coop-sub { color: var(--ink-2); margin-top: 8px; font-size: 14.6px; }
.check-list { margin-top: 20px; display: flex; flex-direction: column; gap: 11px; }
.check-list li { display: flex; gap: 10px; font-size: 14.4px; color: var(--ink-2); }
.check-list svg { width: 18px; height: 18px; flex: 0 0 auto; margin-top: 4px; stroke: var(--brand); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.coop-fit { margin-top: 22px; padding-top: 18px; border-top: 1px dashed var(--line); font-size: 13.6px; color: var(--ink-3); }

/* FAQ */
.faq { max-width: 880px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.faq-item.open { border-color: var(--brand-100); box-shadow: var(--shadow-s); }
.faq-q {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer; font-family: var(--font);
  padding: 18px 22px; font-size: 15.6px; font-weight: 600; color: var(--ink); display: flex; gap: 14px; align-items: center;
}
.faq-q .plus { margin-left: auto; flex: 0 0 auto; width: 18px; height: 18px; position: relative; }
.faq-q .plus::before, .faq-q .plus::after {
  content: ""; position: absolute; background: var(--brand); border-radius: 2px; transition: transform .2s, opacity .2s;
}
.faq-q .plus::before { left: 0; top: 8px; width: 18px; height: 2px; }
.faq-q .plus::after { top: 0; left: 8px; width: 2px; height: 18px; }
.faq-item.open .plus::after { transform: rotate(90deg); opacity: 0; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .28s ease; }
.faq-a-inner { padding: 0 22px 20px; color: var(--ink-2); font-size: 14.6px; }

/* 模块 Tab（产品页） */
.tabs { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin-bottom: 34px; }
.tab {
  padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); background: #fff;
  font-size: 14px; color: var(--ink-2); cursor: pointer; font-family: var(--font); transition: all .18s;
}
.tab:hover { border-color: var(--brand-100); color: var(--brand); }
.tab.active { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }

/* 板块锚点面板 */
.panel { display: none; }
.panel.active { display: block; animation: fadeUp .38s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* 暗色 CTA */
.cta-band {
  background: linear-gradient(120deg, #FF3D00 0%, #E63500 46%, #B02800 100%);
  color: #fff; border-radius: var(--radius-l); padding: 52px 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap;
}
.cta-band h2 { font-size: 30px; }
.cta-band p { margin-top: 12px; color: rgba(255, 255, 255, .86); max-width: 620px; }

/* 联系 */
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 26px; align-items: start; }
.info-list { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.info-row { display: flex; gap: 16px; padding: 20px 24px; border-top: 1px solid var(--line); }
.info-row:first-child { border-top: none; }
.info-row .k { width: 96px; flex: 0 0 auto; color: var(--ink-3); font-size: 14px; }
.info-row .v { font-size: 14.6px; }
.qr-box { text-align: center; }
.qr-img {
  width: 168px; height: 168px; margin: 0 auto; border: 1px dashed var(--line); border-radius: 14px;
  display: flex; align-items: center; justify-content: center; color: var(--ink-3); font-size: 12.5px; background: var(--bg-2);
  text-align: center; padding: 12px;
}
.form-field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 15px; }
.form-field label { font-size: 13.6px; color: var(--ink-2); }
.form-field input, .form-field textarea, .form-field select {
  border: 1px solid var(--line); border-radius: var(--radius-s); padding: 11px 13px; font-size: 14.5px;
  font-family: var(--font); background: #fff; color: var(--ink); outline: none; transition: border-color .18s, box-shadow .18s;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-50); }
.form-note { font-size: 12.6px; color: var(--ink-3); margin-top: 10px; }

/* 页脚 */
.site-footer { background: #17110E; color: rgba(255, 245, 240, .72); padding: 62px 0 0; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr; gap: 44px; padding-bottom: 40px; }
.footer-brand img { height: 30px; width: auto; border-radius: 7px; }
.footer-brand p { margin-top: 16px; font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .6); max-width: 320px; }
.footer-col h4 { position: relative; padding-left: 13px; color: #fff; font-size: 15px; margin-bottom: 16px; letter-spacing: .5px; }
.footer-col h4::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 4px; height: 14px; border-radius: 2px; background: linear-gradient(180deg, var(--brand), #FF8A50); }
.footer-col li { margin-bottom: 10px; font-size: 14px; }
.footer-col a {
  position: relative; display: inline-block; color: rgba(255, 245, 240, .72); text-decoration: none;
  transform-origin: left center;
  transition: color .25s ease, transform .28s cubic-bezier(.34, 1.56, .64, 1);
}
.footer-col a::after {
  content: ""; position: absolute; left: 0; bottom: -3px; width: 100%; height: 1px; border-radius: 1px;
  background: linear-gradient(90deg, var(--brand), #FFB27A);
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.footer-col a:hover { color: #fff; transform: translateX(5px) scale(1.1); }
.footer-col a:hover::after { transform: scaleX(1); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08); padding: 24px 0 30px; display: flex; justify-content: center; flex-wrap: wrap; gap: 8px 26px;
  font-size: 13px; letter-spacing: .4px; color: rgba(255, 235, 222, .48);
}
.footer-bottom a {
  position: relative; display: inline-block; color: rgba(255, 245, 240, .55); text-decoration: none;
  transform-origin: left center;
  transition: color .25s ease, transform .28s cubic-bezier(.34, 1.56, .64, 1);
}
.footer-bottom a::after {
  content: ""; position: absolute; left: 0; bottom: -3px; width: 100%; height: 1px; border-radius: 1px;
  background: linear-gradient(90deg, var(--brand), #FFB27A);
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.footer-bottom a:hover { color: #fff; transform: scale(1.12); }
.footer-bottom a:hover::after { transform: scaleX(1); }

/* 页面头（内页） */
.page-head {
  padding: 62px 0 54px; background:
    radial-gradient(760px 320px at 88% 0%, #FFE7DD 0%, rgba(255, 231, 221, 0) 60%),
    linear-gradient(180deg, #FFFDFC, #FFF8F5);
  border-bottom: 1px solid var(--line);
}
.page-head h1 { font-size: 38px; }
.page-head p { margin-top: 14px; color: var(--ink-2); max-width: 720px; font-size: 15.6px; }
.crumb { font-size: 13.4px; color: var(--ink-3); margin-bottom: 16px; }
.crumb a:hover { color: var(--brand); }

/* 回到顶部 */
.to-top {
  position: fixed; right: 26px; bottom: 26px; width: 46px; height: 46px; border-radius: 50%;
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); color: var(--brand);
  display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; visibility: hidden;
  transition: opacity .2s, visibility .2s, transform .2s; z-index: 50;
}
.to-top.show { opacity: 1; visibility: visible; }
.to-top:hover { transform: translateY(-3px); }
.to-top svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* 滚动出现 */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }

/* 响应式 */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero h1 { font-size: 42px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .nav {
    position: absolute; top: 78px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0; padding: 10px 16px 18px; margin-left: 0;
    box-shadow: var(--shadow); display: none;
  }
  .nav.open { display: flex; }
  .nav-link { padding: 12px 14px; border-radius: 10px; }
  .header-actions { display: none; }
  .menu-toggle { display: flex; margin-left: auto; }
  .pain-board { grid-template-columns: 1fr; gap: 16px; }
  .pain-mid { display: none; }
  .grid-3, .grid-2, .coop-grid, .contact-grid { grid-template-columns: 1fr; }
  .section { padding: 62px 0; }
  .section-title { font-size: 26px; }
  .hero { padding: 54px 0 62px; }
  .hero h1 { font-size: 34px; }
  .page-head h1 { font-size: 28px; }
  .strip-inner { grid-template-columns: repeat(2, 1fr); }
  .strip-item:nth-child(odd) { border-left: none; }
  .strip-item:nth-child(n+3) { border-top: 1px solid var(--line); }
  .cta-band { padding: 36px 26px; }
  .cta-band h2 { font-size: 24px; }
  .float-card { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
}
@media (max-width: 560px) {
  .grid-4 { grid-template-columns: 1fr; }
  .brand-tag { display: none; }
  .hero-cta .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ===== 2.0 新增：图片展示 / 痛点网格 / 亮点板块 ===== */

/* 截图框：浏览器风格 */
.frame { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
.frame-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; background: #FAFAFB; border-bottom: 1px solid var(--line); }
.frame-bar i { width: 9px; height: 9px; border-radius: 50%; background: #E4E6EB; display: block; }
.frame-bar i:first-child { background: var(--brand-200); }
.frame-bar span { margin-left: 8px; font-size: 11.5px; color: var(--ink-3); }
.frame img { width: 100%; display: block; }

/* 截图框：手机风格 */
.device { background: #14100E; padding: 9px; border-radius: 32px; box-shadow: 0 26px 60px rgba(20, 22, 26, .22); }
.device img { width: 100%; border-radius: 24px; display: block; background: #fff; }
.device.sm { padding: 7px; border-radius: 26px; }
.device.sm img { border-radius: 20px; }

/* 首屏截图组合 */
.shots { position: relative; padding: 10px 0 30px; }
.shots-main { width: 62%; margin: 0 auto; position: relative; z-index: 2; }
.shots-side { position: absolute; width: 34%; z-index: 1; }
.shots-side.l { left: 0; top: 46px; }
.shots-side.r { right: 0; top: 78px; z-index: 3; }
.shots-dash {
  position: absolute; z-index: 4; left: 50%; transform: translateX(-52%); bottom: -26px; width: 82%;
  border-radius: 16px; overflow: hidden; border: 1px solid var(--line); background: #fff;
  box-shadow: 0 20px 44px rgba(20, 22, 26, .16);
}
.shots-dash .frame-bar { padding: 8px 12px; }

/* 展示行（图文左右交替） */
.showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.showcase + .showcase { margin-top: 84px; }
.showcase.rev .showcase-media { order: 2; }
.showcase-media { position: relative; }
.showcase-body h3 { font-size: 27px; letter-spacing: -.4px; }
.showcase-body .lead { margin-top: 14px; color: var(--ink-2); font-size: 15.4px; }
.showcase-kicker {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600;
  color: var(--brand); background: var(--brand-50); padding: 5px 13px; border-radius: 999px; margin-bottom: 16px;
}
.feature-list { margin-top: 24px; display: flex; flex-direction: column; gap: 14px; }
.feature-list li { display: flex; gap: 12px; font-size: 14.6px; color: var(--ink-2); }
.feature-list b { color: var(--ink); font-weight: 600; }
.feature-list .fi {
  flex: 0 0 auto; width: 26px; height: 26px; border-radius: 8px; background: var(--brand-50); color: var(--brand);
  display: flex; align-items: center; justify-content: center; font-size: 12.5px; font-weight: 700; margin-top: 2px;
}
.showcase-stats { display: flex; gap: 28px; margin-top: 26px; flex-wrap: wrap; }
.showcase-stats div { border-left: 2px solid var(--brand-100); padding-left: 14px; }
.showcase-stats .n { font-size: 22px; font-weight: 700; color: var(--brand); }
.showcase-stats .t { font-size: 13.4px; color: var(--ink-3); }

/* 痛点网格 */
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pain-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px 24px;
  position: relative; transition: transform .2s, box-shadow .22s, border-color .2s;
}
.pain-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--brand-200); }
.pain-card .pn {
  font-size: 34px; font-weight: 700; line-height: 1; color: var(--brand-100); letter-spacing: -1px;
}
.pain-card h3 { margin-top: 14px; font-size: 16.6px; }
.pain-card p { margin-top: 9px; font-size: 14.2px; color: var(--ink-2); }
.pain-card .fix { margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--line); font-size: 13.6px; color: var(--brand-700); display: flex; gap: 8px; }
.pain-card .fix svg { width: 16px; height: 16px; flex: 0 0 auto; margin-top: 3px; stroke: var(--brand); fill: none; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.pain-need {
  margin-top: 26px; border: 1px dashed var(--brand-200); background: var(--brand-50); border-radius: var(--radius);
  padding: 24px 28px; color: var(--brand-700); font-size: 15.2px; display: flex; gap: 14px; align-items: flex-start;
}
.pain-need svg { width: 26px; height: 26px; flex: 0 0 auto; stroke: var(--brand); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* 亮点板块 */
.hl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.hl-card {
  border-radius: var(--radius); padding: 28px; background: #fff; border: 1px solid var(--line);
  transition: transform .2s, box-shadow .22s, border-color .2s;
}
.hl-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--brand-200); }
.hl-card .no {
  display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 10px;
  background: var(--brand); color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 16px;
}
.hl-card h3 { font-size: 17.4px; }
.hl-card p { margin-top: 10px; font-size: 14.4px; color: var(--ink-2); }
.hl-card .tags { margin-top: 16px; }

/* 亮点大图条 */
.hl-band {
  margin-top: 26px; border-radius: var(--radius-l); overflow: hidden; border: 1px solid var(--line);
  background: linear-gradient(120deg, #FFF6F1, #FFFDFC); display: grid; grid-template-columns: 1.15fr .85fr; align-items: center;
}
.hl-band-body { padding: 44px; }
.hl-band-body h3 { font-size: 24px; }
.hl-band-body p { margin-top: 14px; color: var(--ink-2); font-size: 15.2px; }
.hl-band-media { padding: 26px; }
.hl-band-media .frame { box-shadow: var(--shadow); }
.hl-band .pills { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
.hl-band .pills span { font-size: 13px; background: #fff; border: 1px solid var(--brand-200); color: var(--brand-700); padding: 6px 14px; border-radius: 999px; }

/* 暗色区块 */
.dark-band { background: #17110E; color: #fff; border-radius: var(--radius-l); padding: 54px 52px; }
.dark-band h2 { font-size: 30px; color: #fff; }
.dark-band p { color: rgba(255, 245, 240, .72); margin-top: 14px; max-width: 760px; }
.dark-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 34px; }
.dark-item { border: 1px solid rgba(255, 255, 255, .12); border-radius: var(--radius); padding: 24px; background: rgba(255, 255, 255, .03); }
.dark-item h4 { color: #fff; font-size: 16.4px; }
.dark-item p { margin-top: 9px; font-size: 14.2px; color: rgba(255, 245, 240, .62); }

/* 场景卡 */
.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.scene-card { border: 1px solid var(--line); border-radius: var(--radius-l); overflow: hidden; background: #fff; transition: box-shadow .22s, transform .2s; }
.scene-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.scene-card .head { padding: 28px 28px 0; }
.scene-card .head .who { font-size: 13px; color: var(--brand); font-weight: 600; }
.scene-card .head h3 { margin-top: 10px; font-size: 19px; }
.scene-card .head p { margin-top: 10px; color: var(--ink-2); font-size: 14.4px; }
.scene-card .body { padding: 20px 28px 28px; }
.scene-card .body li { display: flex; gap: 10px; font-size: 14.2px; color: var(--ink-2); margin-bottom: 10px; }
.scene-card .body li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); margin-top: 9px; flex: 0 0 auto; }

/* 图库（瀑布流：横竖图混排不留空白） */
.gallery { columns: 3; column-gap: 20px; }
.gallery .frame { break-inside: avoid; margin: 0 0 20px; transition: transform .2s, box-shadow .22s; }
.gallery .frame:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.gallery .cap { padding: 14px 18px 18px; font-size: 13.6px; color: var(--ink-2); }
.gallery .cap b { display: block; color: var(--ink); font-size: 15px; margin-bottom: 4px; font-weight: 600; }

@media (max-width: 1080px) {
  .showcase, .hl-band { grid-template-columns: 1fr; gap: 34px; }
  .showcase.rev .showcase-media { order: 0; }
  .hl-band-body { padding: 30px; }
  .hl-band-media { padding: 0 24px 26px; }
  .pain-grid, .hl-grid, .dark-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .shots-main { width: 74%; }
  .shots-side { display: none; }
  .shots-dash { width: 96%; bottom: -18px; }
  .pain-grid, .hl-grid, .dark-grid, .scene-grid, .gallery { grid-template-columns: 1fr; }
  .showcase + .showcase { margin-top: 56px; }
  .dark-band { padding: 34px 26px; }
}

/* ============ 首屏 v2（HTML 排版 + 三手机 + 数据看板） ============ */
.hero-grid { display: grid; grid-template-columns: 1.02fr 1fr; gap: 24px; align-items: center; padding: 30px 0 44px; }
.hero-eyebrow { display: flex; align-items: center; gap: 12px; font-size: 14px; font-weight: 600; color: var(--brand); letter-spacing: 5px; }
.hero-eyebrow i { width: 30px; height: 1px; background: linear-gradient(90deg, transparent, var(--brand)); }
.hero-eyebrow i:last-child { background: linear-gradient(270deg, transparent, var(--brand)); }
.hero-title { margin: 16px 0 18px; font-size: 46px; line-height: 1.3; font-weight: 800; color: #23262C; letter-spacing: 1px; }
.hero-title span { color: var(--brand); }
.hero-sub { color: var(--ink-2); font-size: 15px; line-height: 2.05; }
.hero-btns { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.btn-lg { height: 50px; padding: 0 32px; font-size: 16px; display: inline-flex; align-items: center; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 28px; margin: 26px 0 0; padding: 0; list-style: none; }
.hero-points li { position: relative; padding-left: 17px; color: var(--ink-2); font-size: 13.5px; }
.hero-points li::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 7px; height: 7px; border-radius: 2px; background: var(--brand); }
.hero-visual { position: relative; height: 700px; }
.phone { position: absolute; background: #1B1D22; border-radius: 36px; padding: 9px; box-shadow: 0 34px 64px rgba(190, 62, 12, .26), 0 8px 20px rgba(190, 62, 12, .14); }
.phone img { display: block; width: 100%; height: 100%; object-fit: cover; border-radius: 28px; background: #fff; }
.phone-l { width: 232px; height: 504px; left: 0; top: 90px; }
.phone-c { width: 296px; height: 642px; left: 50%; margin-left: -148px; top: 0; z-index: 2; }
.phone-r { width: 232px; height: 504px; right: 0; top: 66px; }
.dash-card { position: absolute; left: 50%; transform: translateX(-47%); bottom: 0; width: 408px; z-index: 3; background: #fff; border-radius: 16px; box-shadow: 0 26px 56px rgba(160, 52, 10, .22), 0 6px 18px rgba(160, 52, 10, .10); overflow: hidden; }
.dash-bar { display: flex; align-items: center; gap: 6px; padding: 11px 15px 9px; }
.dash-bar .d { width: 9px; height: 9px; border-radius: 50%; }
.dot-r { background: #FF5F57; } .dot-y { background: #FEBC2E; } .dot-g { background: #28C840; }
.dash-bar b { margin-left: 8px; font-size: 13px; color: #3A3F46; font-weight: 600; letter-spacing: .5px; }
.dash-body { margin: 0 10px 10px; background: linear-gradient(165deg, #3D7BFF, #2456E6); border-radius: 12px; color: #fff; padding: 12px 16px 14px; }
.dash-meta { display: flex; align-items: center; gap: 14px; font-size: 10.5px; opacity: .93; white-space: nowrap; }
.dash-meta .live { background: rgba(255, 255, 255, .2); border-radius: 999px; padding: 1px 9px; font-size: 10px; }
.dash-amount { text-align: center; margin: 10px 0 12px; position: relative; }
.dash-amount span { display: block; font-size: 11.5px; opacity: .9; letter-spacing: 1px; }
.dash-amount strong { display: block; margin-top: 3px; font-size: 31px; font-weight: 800; letter-spacing: .5px; }
.dash-amount em { position: absolute; right: 0; top: 8px; font-style: normal; font-size: 10.5px; border: 1px solid rgba(255, 255, 255, .55); border-radius: 999px; padding: 2px 10px; opacity: .95; }
.dash-stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px 6px; text-align: center; }
.dash-stats div span { display: block; font-size: 9.5px; opacity: .82; white-space: nowrap; }
.dash-stats div b { display: block; margin-top: 3px; font-size: 12.5px; font-weight: 700; white-space: nowrap; }
@media (max-width: 1100px) {
  .hero-grid { grid-template-columns: 1fr; padding-top: 20px; }
  .hero-visual { height: auto; padding: 40px 0 0; min-height: 560px; }
  .hero-title { font-size: 36px; }
}
@media (max-width: 560px) {
  .hero-title { font-size: 29px; }
  .hero-title br, .hero-sub br { display: none; }
  .hero-visual { transform: scale(.72); transform-origin: top center; min-height: 430px; }
  .dash-card { width: 360px; }
}
/* 首图 → 下方板块背景衔接（仅首页用） */
.hero-blend { background: linear-gradient(180deg, #FFFAF5 0%, #FFFCFA 40%, #FFFFFF 78%); }