/* ==========================================================================
   北京丽娅科技有限公司 · 闲置转让/二手交易平台软件独立站 全站样式
   主题：绿黑科技风（环保循环感）  |  响应式 PC / H5
   ========================================================================== */

:root {
  --brand-green: #00B96B;
  --brand-green-dark: #008A50;
  --brand-green-light: #22D98A;
  --brand-green-deep: #0A7A48;
  --brand-black: #101512;
  --brand-black-2: #1A211D;
  --brand-gray: #F4F7F5;
  --brand-gray-2: #E7EEE9;
  --text-main: #172019;
  --text-sub: #55615A;
  --text-muted: #8B968F;
  --line: #E3EAE5;
  --white: #FFFFFF;
  --grad-green: linear-gradient(135deg, #22D98A 0%, #00B96B 45%, #008A50 100%);
  --grad-dark: linear-gradient(160deg, #1E2A23 0%, #101512 60%, #0A0D0B 100%);
  --shadow-sm: 0 2px 10px rgba(0,0,0,.05);
  --shadow-md: 0 8px 30px rgba(0,0,0,.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.14);
  --shadow-green: 0 12px 34px rgba(0,185,107,.28);
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1200px;
  --header-h: 72px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

* { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-main);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
ul,ol { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

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

/* ---------- 顶部悬浮转化条 ---------- */
.topbar {
  background: var(--brand-black);
  color: #CFD8D2;
  font-size: 13px;
  height: 38px;
  display: flex;
  align-items: center;
  position: relative;
  z-index: 60;
}
.topbar .container { display: flex; align-items: center; justify-content: space-between; }
.topbar .tb-left { display: flex; align-items: center; gap: 18px; }
.topbar .tb-tag { color: var(--brand-green-light); font-weight: 600; }
.topbar .tb-right { display: flex; align-items: center; gap: 16px; }
.topbar a { color: #E2EAE5; }
.topbar a:hover { color: var(--brand-green-light); }
.topbar .tb-phone { color: var(--brand-green-light); font-weight: 700; font-size: 14px; letter-spacing: .5px; }

/* ---------- 主导航 ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.9);
  border-bottom: 1px solid var(--line);
  height: var(--header-h);
  transition: box-shadow .3s var(--ease);
}
.header.scrolled { box-shadow: var(--shadow-md); }
.header .container { display: flex; align-items: center; height: 100%; gap: 32px; }

.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-mark {
  width: 42px; height: 42px; border-radius: 10px;
  background: var(--grad-green);
  color: #fff; font-weight: 800; font-size: 20px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-green);
  letter-spacing: 0;
}
.logo-text { line-height: 1.15; }
.logo-text b { display: block; font-size: 17px; color: var(--brand-black); letter-spacing: .5px; }
.logo-text span { font-size: 11px; color: var(--text-muted); letter-spacing: 2px; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav > li { position: relative; }
.nav > li > a {
  display: block; padding: 10px 16px; font-size: 15px; font-weight: 500;
  color: var(--text-main); border-radius: 8px; white-space: nowrap;
}
.nav > li > a:hover, .nav > li > a.active { color: var(--brand-green-dark); }
.nav > li.nav-cta > a:hover { color: #fff; }
.nav > li.has-sub > a::after { content: "▾"; margin-left: 5px; font-size: 11px; color: var(--text-muted); }

.dropdown {
  position: absolute; top: 100%; left: 50%; transform: translate(-50%, 10px);
  background: var(--white); border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow-lg); padding: 8px; min-width: 210px;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: all .3s var(--ease);
}
.nav > li.has-sub:hover .dropdown { opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, 4px); }
.dropdown a { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 8px; font-size: 14px; color: var(--text-sub); }
.dropdown a:hover { background: var(--brand-gray); color: var(--brand-green-dark); padding-left: 18px; }
.dropdown a:hover .d-ico { background: var(--grad-green); color: #fff; }
.dropdown a .d-ico { width: 28px; height: 28px; border-radius: 7px; background: var(--brand-gray-2); display: flex; align-items: center; justify-content: center; font-size: 15px; }

.nav-cta { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-cta .phone { font-weight: 700; color: var(--brand-green-dark); font-size: 15px; padding: 8px 14px; background: rgba(0,185,107,.08); border-radius: 8px; transition: all .25s var(--ease); }
.nav-cta .phone:hover { background: rgba(0,185,107,.14); color: var(--brand-green-deep); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: 50px; font-size: 15px; font-weight: 600;
  transition: all .3s var(--ease); line-height: 1;
}
.btn-primary { background: var(--grad-green); color: #fff; box-shadow: var(--shadow-green); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(0,185,107,.45); filter: brightness(1.05); }
.btn-dark { background: var(--brand-black); color: #fff; }
.btn-dark:hover { background: #26302a; transform: translateY(-2px); }
.btn-ghost { border: 1.5px solid var(--line); color: var(--text-main); background: #fff; }
.btn-ghost:hover { border-color: var(--brand-green); color: var(--brand-green-dark); }
.btn-lg { padding: 16px 34px; font-size: 16px; }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* 移动端汉堡 */
.hamburger { display: none; width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--line); position: relative; margin-left: auto; text-decoration: none; color: var(--brand-black); }
.hamburger span { position: absolute; left: 11px; right: 11px; height: 2px; background: var(--brand-black); border-radius: 2px; transition: all .3s var(--ease); }
.hamburger span:nth-child(1) { top: 14px; }
.hamburger span:nth-child(2) { top: 20px; }
.hamburger span:nth-child(3) { top: 26px; }
.hamburger.open span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--grad-dark);
  color: #fff;
  overflow: hidden;
  padding: 90px 0 110px;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(600px 400px at 85% 20%, rgba(0,185,107,.30), transparent 60%),
    radial-gradient(500px 400px at 10% 90%, rgba(0,185,107,.18), transparent 60%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: .05;
  background-image: linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size: 46px 46px;
}
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: center; }

.hero-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(0,185,107,.15); border: 1px solid rgba(0,185,107,.4);
  color: #4DE39F; font-size: 13px; padding: 7px 16px; border-radius: 50px; margin-bottom: 24px; letter-spacing: 1px;
}
.hero h1 { font-size: 52px; line-height: 1.2; font-weight: 800; letter-spacing: -1px; margin-bottom: 22px; }
.hero h1 .hl { color: var(--brand-green-light); position: relative; white-space: nowrap; }
.hero h1 .hl::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 10px; background: rgba(0,185,107,.35); z-index: -1; border-radius: 4px; }
.hero-desc { font-size: 18px; color: #B3BDB7; max-width: 560px; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 44px; flex-wrap: wrap; }
.hero-stats .stat b { font-size: 34px; font-weight: 800; color: #fff; display: block; line-height: 1.1; }
.hero-stats .stat b em { font-style: normal; color: var(--brand-green-light); }
.hero-stats .stat span { font-size: 13px; color: #95A09A; }

.hero-visual { position: relative; }
.hero-phone {
  width: 300px; margin: 0 auto; border-radius: 34px; background: #1A221D;
  border: 1px solid rgba(255,255,255,.12); padding: 12px; box-shadow: 0 40px 90px rgba(0,0,0,.5);
  position: relative; z-index: 2;
}
.hero-phone .screen { border-radius: 24px; overflow: hidden; background: var(--brand-gray); aspect-ratio: 9/19; position: relative; }
.hero-phone .screen .s-head { background: var(--grad-green); height: 96px; padding: 18px 16px; color: #fff; }
.hero-phone .screen .s-head .s-loc { font-size: 11px; opacity: .85; }
.hero-phone .screen .s-head b { font-size: 18px; display: block; }
.hero-phone .screen .s-cats { display: flex; gap: 8px; flex-wrap: wrap; padding: 16px; }
.hero-phone .screen .s-cat { background: #fff; border-radius: 10px; padding: 10px; text-align: center; flex: 1 1 28%; box-shadow: var(--shadow-sm); font-size: 11px; color: var(--text-sub); }
.hero-phone .screen .s-cat .ic { font-size: 20px; display: block; margin-bottom: 4px; }
.hero-phone .screen .s-list { padding: 0 16px; display: flex; flex-direction: column; gap: 8px; }
.hero-phone .screen .s-item { background: #fff; border-radius: 10px; padding: 10px 12px; font-size: 11px; color: var(--text-sub); display: flex; align-items: center; gap: 8px; box-shadow: var(--shadow-sm); }
.hero-phone .screen .s-item .dot { width: 28px; height: 28px; border-radius: 8px; background: var(--brand-gray-2); flex-shrink: 0; }
.hero-float {
  position: absolute; z-index: 3; background: #fff; color: var(--text-main);
  border-radius: 14px; padding: 12px 16px; box-shadow: var(--shadow-lg); font-size: 13px; font-weight: 600;
  display: flex; align-items: center; gap: 10px; animation: floaty 4s ease-in-out infinite;
}
.hero-float .f-ic { width: 34px; height: 34px; border-radius: 10px; background: var(--grad-green); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 17px; }
.hero-float.f1 { top: 8%; left: -30px; }
.hero-float.f2 { bottom: 18%; right: -20px; animation-delay: 1.5s; }
.hero-float.f3 { bottom: -14px; left: 40px; animation-delay: .8s; }

@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ---------- 通用 section ---------- */
.section { padding: 90px 0; }
.section.tight { padding: 60px 0; }
.section.gray { background: var(--brand-gray); }
.section.dark { background: var(--grad-dark); color: #fff; }

.sec-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.sec-head .kicker {
  display: inline-block; color: var(--brand-green-dark); font-size: 13px; font-weight: 700;
  letter-spacing: 3px; text-transform: uppercase; margin-bottom: 14px;
}
.sec-head h2 { font-size: 38px; font-weight: 800; letter-spacing: -.5px; line-height: 1.25; margin-bottom: 16px; }
.sec-head p { color: var(--text-sub); font-size: 17px; }
.section.dark .sec-head h2 { color: #fff; }
.section.dark .sec-head p { color: #A5B0AA; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; transition: all .35s var(--ease); position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card .card-ico {
  width: 56px; height: 56px; border-radius: 14px; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: center; font-size: 26px;
  background: linear-gradient(135deg, rgba(0,185,107,.12), rgba(0,185,107,.04));
  color: var(--brand-green-dark);
}
.card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.card p { color: var(--text-sub); font-size: 15px; }
.card .card-tag {
  position: absolute; top: 18px; right: 18px; font-size: 11px; color: var(--brand-green-dark);
  background: rgba(0,185,107,.08); padding: 4px 10px; border-radius: 50px; font-weight: 600;
}

/* 功能分类（features 专用） */
.feature-group { margin-bottom: 64px; }
.feature-group:last-child { margin-bottom: 0; }
.fg-head { display: flex; align-items: center; gap: 16px; margin-bottom: 28px; }
.fg-head .fg-num { font-size: 40px; font-weight: 800; color: transparent; -webkit-text-stroke: 1.5px var(--brand-green); line-height: 1; }
.fg-head .fg-title { font-size: 24px; font-weight: 800; }
.fg-head .fg-sub { color: var(--text-sub); font-size: 14px; }

/* ---------- 列表/要点 ---------- */
.check-list { display: flex; flex-direction: column; gap: 14px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--text-sub); }
.check-list li .ck { width: 22px; height: 22px; border-radius: 50%; background: var(--grad-green); color: #fff; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 12px; margin-top: 2px; }

/* ---------- 对比表 VS ---------- */
.vs-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
.vs-table th, .vs-table td { padding: 18px 22px; text-align: center; border-bottom: 1px solid var(--line); font-size: 15px; }
.vs-table th { background: var(--brand-black); color: #fff; font-weight: 700; }
.vs-table th.hl { background: var(--grad-green); }
.vs-table { color: #172019 !important; }
.vs-table td:first-child { text-align: left; color: #55615A !important; font-weight: 500; }
.vs-table td.yes { color: #00A55E !important; font-weight: 700; }
.vs-table td.no { color: #9AA49E !important; }
.vs-table tr:last-child td { border-bottom: none; }
.vs-table .vs-logo { font-size: 12px; opacity: .8; }

/* ---------- 价格卡片 ---------- */
.price-card { text-align: left; position: relative; }
.price-card.featured { border: 2px solid var(--brand-green); box-shadow: var(--shadow-green); overflow: visible; }
.price-card.featured:hover { transform: none; }
.price-card .badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--grad-green); color: #fff; font-size: 12px; font-weight: 700;
  padding: 6px 18px; border-radius: 50px; white-space: nowrap;
}
.price-card .p-name { font-size: 17px; font-weight: 700; }
.price-card .p-price { font-size: 38px; font-weight: 800; margin: 14px 0 4px; color: var(--brand-black); }
.price-card .p-price small { font-size: 15px; color: var(--text-muted); font-weight: 400; }
.price-card .p-desc { color: var(--text-muted); font-size: 13px; margin-bottom: 18px; }
.price-card ul { margin-bottom: 24px; display: flex; flex-direction: column; gap: 10px; }
.price-card ul li { font-size: 14px; color: var(--text-sub); padding-left: 24px; position: relative; }
.price-card ul li::before { content: "✓"; position: absolute; left: 0; color: var(--brand-green); font-weight: 700; }

/* ---------- 步骤流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; padding: 30px; background: #fff; border-radius: var(--radius); border: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-size: 44px; font-weight: 800; color: transparent; -webkit-text-stroke: 1.5px var(--brand-green);
  display: block; margin-bottom: 14px; line-height: 1;
}
.step h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.step p { color: var(--text-sub); font-size: 14px; }

/* ---------- 面包屑 ---------- */
.crumb { background: var(--brand-gray); padding: 14px 0; font-size: 13px; color: var(--text-muted); }
.crumb .container { display: flex; gap: 8px; align-items: center; }
.crumb a:hover { color: var(--brand-green-dark); }
.crumb .sep { color: #C8CECB; }

/* 页面标题区 */
.page-hero { background: var(--grad-dark); color: #fff; padding: 64px 0 72px; position: relative; overflow: hidden; }
.page-hero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(500px 300px at 80% 0%, rgba(0,185,107,.24), transparent 60%); pointer-events: none; }
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { font-size: 42px; font-weight: 800; letter-spacing: -.5px; margin-bottom: 14px; }
.page-hero p { color: #B3BDB7; font-size: 17px; max-width: 680px; }

/* ---------- CTA 区块 ---------- */
.cta-band {
  background: var(--grad-green); color: #fff; border-radius: 24px; padding: 56px 60px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
  position: relative; overflow: hidden;
}
.cta-band::after { content: ""; position: absolute; right: -60px; top: -60px; width: 260px; height: 260px; border-radius: 50%; background: rgba(255,255,255,.12); }
.cta-band::before { content: ""; position: absolute; right: 60px; bottom: -80px; width: 180px; height: 180px; border-radius: 50%; background: rgba(255,255,255,.08); }
.cta-band h3 { font-size: 28px; font-weight: 800; margin-bottom: 8px; position: relative; z-index: 2; }
.cta-band p { font-size: 15px; opacity: .94; position: relative; z-index: 2; }
.cta-band .btn { background: #fff; color: var(--brand-green-dark); position: relative; z-index: 2; box-shadow: 0 10px 30px rgba(0,0,0,.2); }
.cta-band .btn:hover { transform: translateY(-2px); }
.cta-band .cta-phone { font-size: 30px; font-weight: 800; letter-spacing: 1px; }

/* ---------- 页脚 ---------- */
.footer { background: var(--brand-black); color: #B3BDB7; padding: 70px 0 0; }
.footer .f-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 50px; }
.footer h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 20px; }
.footer .f-links { display: flex; flex-direction: column; gap: 12px; }
.footer .f-links a { font-size: 14px; }
.footer .f-links a:hover { color: var(--brand-green-light); }
.footer .f-brand p { font-size: 14px; margin-top: 18px; line-height: 1.8; }
.footer .f-contact li { font-size: 14px; margin-bottom: 10px; display: flex; gap: 8px; }
.footer .f-contact .hot { color: var(--brand-green-light); font-size: 22px; font-weight: 800; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; font-size: 13px; color: #89928C; }
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.footer-bottom a:hover { color: #fff; }

/* 友情链接 */
.friend-links { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; }
.friend-links .container { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.friend-links .fl-label { color: #89928C; font-size: 13px; }
.friend-links a { font-size: 13px; color: #A5B0AA; }
.friend-links a:hover { color: var(--brand-green-light); }

/* ---------- 回到顶部 ---------- */
.backtop {
  position: fixed; right: 24px; bottom: 28px; z-index: 70; width: 46px; height: 46px; border-radius: 50%;
  background: var(--brand-black); color: #fff; display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: all .3s var(--ease); font-size: 18px; box-shadow: var(--shadow-md);
}
.backtop.show { opacity: 1; visibility: visible; }
.backtop:hover { background: var(--brand-green-dark); }

/* ---------- 滚动渐入动画 ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }

/* ---------- mockup 界面占位 ---------- */
.mockup {
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  background: #fff; box-shadow: var(--shadow-lg);
}
.mockup .m-bar { background: var(--brand-gray-2); padding: 10px 16px; display: flex; align-items: center; gap: 8px; }
.mockup .m-bar i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.mockup .m-bar i:nth-child(1) { background: #FF5F57; }
.mockup .m-bar i:nth-child(2) { background: #FEBC2E; }
.mockup .m-bar i:nth-child(3) { background: #28C840; }
.mockup .m-bar .m-url { margin-left: 8px; font-size: 12px; color: var(--text-muted); background: #fff; padding: 3px 12px; border-radius: 6px; flex: 1; }
.mockup .m-body { padding: 24px; }
.mockup .m-body .m-row { display: flex; gap: 14px; margin-bottom: 14px; }
.mockup .m-body .m-col { background: var(--brand-gray); border-radius: 10px; height: 90px; flex: 1; }
.mockup .m-body .m-block { background: var(--brand-gray); border-radius: 10px; height: 70px; margin-bottom: 14px; }
.mockup .m-body .m-mini { display: flex; gap: 14px; }
.mockup .m-body .m-mini div { flex: 1; background: var(--brand-gray-2); border-radius: 8px; height: 46px; }

/* ---------- 标签胶囊 ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 10px; }
.tag { padding: 8px 18px; border-radius: 50px; background: var(--brand-gray); font-size: 14px; color: var(--text-sub); border: 1px solid transparent; transition: all .25s var(--ease); }
.tag:hover { background: #fff; border-color: var(--brand-green); color: var(--brand-green-dark); }

/* ---------- 表单 ---------- */
.form { background: #fff; border-radius: var(--radius); padding: 40px; box-shadow: var(--shadow-md); }
.form .f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form .field { margin-bottom: 18px; }
.form label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.form input, .form textarea, .form select {
  width: 100%; padding: 13px 16px; border: 1.5px solid var(--line); border-radius: 10px;
  font-size: 15px; font-family: inherit; transition: border-color .25s var(--ease); background: #fff;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--brand-green); }
.form textarea { resize: vertical; min-height: 120px; }

/* ---------- 二维码占位 ---------- */
.qr-placeholder {
  width: 180px; height: 180px; border: 2px dashed #C8CECB; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; color: var(--text-muted);
  font-size: 13px; text-align: center; flex-direction: column; gap: 8px; background: var(--brand-gray);
}
.qr-placeholder .q-ic { font-size: 30px; }

/* ---------- 微信二维码（真实图片） ---------- */
.qr-box { width: 180px; text-align: center; }
.qr-box .qr-img {
  width: 180px; height: 180px; border-radius: 14px; border: 1px solid var(--line);
  display: block; object-fit: cover; background: #fff;
}
.qr-box .qr-tip { margin-top: 10px; font-size: 12px; color: #95A09A; line-height: 1.6; }

/* 悬浮微信二维码弹层 */
.float-side { position: fixed; right: 20px; bottom: 100px; z-index: 70; display: flex; flex-direction: column; gap: 12px; }
.float-side a {
  width: 50px; height: 50px; border-radius: 50%; background: #fff; box-shadow: var(--shadow-lg);
  display: flex; align-items: center; justify-content: center; font-size: 22px; position: relative;
}
.float-side a.hot { background: var(--grad-green); color: #fff; animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(0,185,107,.5); } 70% { box-shadow: 0 0 0 16px rgba(0,185,107,0); } 100% { box-shadow: 0 0 0 0 rgba(0,185,107,0); } }
.float-side .wx-qr-pop {
  position: absolute; right: 64px; bottom: 0; width: 160px;
  background: #fff; border-radius: 12px; box-shadow: var(--shadow-lg);
  padding: 12px; opacity: 0; visibility: hidden; transform: translateX(8px);
  transition: all .3s var(--ease); text-align: center;
}
.float-side .wx-btn:hover .wx-qr-pop { opacity: 1; visibility: visible; transform: none; }
.float-side .wx-qr-pop img { width: 136px; height: 136px; border-radius: 8px; margin: 0 auto; display: block; }
.float-side .wx-qr-pop span { display: block; margin-top: 8px; font-size: 12px; color: var(--text-sub); }

/* ---------- 联系我们引流三件套 ---------- */
.contact-actions { display: flex; flex-direction: column; gap: 16px; }
.ca-head { margin-bottom: 8px; }
.ca-head h3 { font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.ca-head p { color: var(--text-muted); font-size: 14px; }
.ca-item {
  display: flex; align-items: center; gap: 16px;
  background: #fff; border: 1.5px solid var(--line); border-radius: 16px;
  padding: 22px 24px; transition: all .3s var(--ease); position: relative; overflow: hidden;
}
.ca-item:hover { border-color: var(--brand-green); box-shadow: var(--shadow-md); transform: translateX(6px); }
.ca-item .ca-ico {
  width: 52px; height: 52px; border-radius: 14px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 24px;
}
.ca-item .ca-info { flex: 1; }
.ca-item .ca-info b { display: block; font-size: 17px; font-weight: 700; margin-bottom: 3px; }
.ca-item .ca-info span { font-size: 14px; color: var(--text-sub); }
.ca-item .ca-arrow { font-size: 20px; color: #BFC6C2; transition: transform .3s var(--ease); }
.ca-item:hover .ca-arrow { color: var(--brand-green); transform: translateX(4px); }
.ca-phone .ca-ico { background: linear-gradient(135deg, rgba(0,185,107,.12), rgba(0,185,107,.05)); }
.ca-wechat .ca-ico { background: linear-gradient(135deg, rgba(7,193,96,.12), rgba(7,193,96,.05)); }
.ca-qq .ca-ico { background: linear-gradient(135deg, rgba(18,150,219,.12), rgba(18,150,219,.05)); }
.ca-tip { font-size: 13px; color: var(--text-muted); background: var(--brand-gray); border-radius: 12px; padding: 14px 18px; line-height: 1.6; }

/* ---------- 公司信息栏 ---------- */
.company-info { background: var(--brand-black); border-radius: var(--radius); padding: 32px 28px; color: #B3BDB7; }
.ci-logo { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.ci-logo .logo-mark { width: 52px; height: 52px; font-size: 24px; border-radius: 14px; }
.ci-logo b { display: block; color: #fff; font-size: 17px; font-weight: 700; }
.ci-logo span { font-size: 11px; color: #89928C; letter-spacing: 2px; }
.ci-desc { font-size: 14px; line-height: 1.8; margin-bottom: 24px; }
.ci-item { display: flex; gap: 14px; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.08); }
.ci-item .ci-ico { width: 40px; height: 40px; border-radius: 10px; background: rgba(255,255,255,.06); display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0; }
.ci-item b { display: block; color: #fff; font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.ci-item p { font-size: 13px; color: #95A09A; }

/* ---------- 两栏图文 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split .s-text h2 { font-size: 34px; font-weight: 800; margin-bottom: 18px; line-height: 1.3; }
.split .s-text p { color: var(--text-sub); margin-bottom: 16px; }

/* ---------- 端标识条 ---------- */
.role-banner {
  display: flex; align-items: center; gap: 20px; background: var(--brand-black); color: #fff;
  border-radius: var(--radius); padding: 26px 32px; margin-bottom: 40px;
}
.role-banner .rb-ico { width: 60px; height: 60px; border-radius: 16px; background: var(--grad-green); display: flex; align-items: center; justify-content: center; font-size: 28px; flex-shrink: 0; }
.role-banner h3 { font-size: 20px; font-weight: 800; }
.role-banner p { color: #B3BDB7; font-size: 14px; }

/* ---------- FAQ 折叠 ---------- */
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; transition: all .3s var(--ease); }
.faq-item.open { border-color: var(--brand-green); box-shadow: var(--shadow-sm); }
.faq-q {
  width: 100%; text-align: left; padding: 20px 24px; font-size: 16px; font-weight: 600;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--text-main);
}
.faq-q .faq-ico { color: var(--brand-green-dark); font-weight: 800; flex-shrink: 0; }
.faq-q .faq-arrow { font-size: 18px; color: var(--text-muted); transition: transform .3s var(--ease); flex-shrink: 0; }
.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--brand-green-dark); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.faq-a p { padding: 0 24px 22px; color: var(--text-sub); font-size: 15px; line-height: 1.8; }

/* ---------- 博客列表 ---------- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .35s var(--ease); display: flex; flex-direction: column; }
.blog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.blog-cover { height: 180px; display: flex; align-items: center; justify-content: center; font-size: 64px; color: #fff; position: relative; }
.blog-card .bc-1 { background: linear-gradient(135deg, #22D98A, #008A50); }
.blog-card .bc-2 { background: linear-gradient(135deg, #2BC4A2, #0B8F73); }
.blog-card .bc-3 { background: linear-gradient(135deg, #43B97F, #177A4B); }
.blog-card .bc-4 { background: linear-gradient(135deg, #1FAD6F, #0C6A3F); }
.blog-card .bc-5 { background: linear-gradient(135deg, #4CC38A, #1D7A52); }
.blog-card .bc-6 { background: linear-gradient(135deg, #2FAF7A, #0E6B45); }
.blog-card .bc-7 { background: linear-gradient(135deg, #36B37E, #11643F); }
.blog-card .bc-8 { background: linear-gradient(135deg, #57C798, #23845B); }
.blog-card .bc-9 { background: linear-gradient(135deg, #2FB89A, #12745E); }
.blog-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.blog-body .b-meta { font-size: 12px; color: var(--text-muted); margin-bottom: 10px; display: flex; gap: 12px; }
.blog-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; }
.blog-body h3 a:hover { color: var(--brand-green-dark); }
.blog-body p { font-size: 14px; color: var(--text-sub); flex: 1; }
.blog-body .b-more { margin-top: 16px; color: var(--brand-green-dark); font-weight: 600; font-size: 14px; }
.blog-body .b-more:hover { text-decoration: underline; }

/* ---------- 博客文章正文 ---------- */
.article-wrap { max-width: 820px; margin: 0 auto; }
.article-wrap .a-title { font-size: 34px; font-weight: 800; line-height: 1.4; margin-bottom: 20px; }
.article-wrap .a-meta { font-size: 14px; color: var(--text-muted); margin-bottom: 32px; padding-bottom: 20px; border-bottom: 1px solid var(--line); display: flex; gap: 16px; flex-wrap: wrap; }
.article-body h2 { font-size: 24px; font-weight: 800; margin: 36px 0 14px; line-height: 1.4; }
.article-body h3 { font-size: 19px; font-weight: 700; margin: 28px 0 12px; }
.article-body p { font-size: 16px; color: #333C36; margin-bottom: 16px; line-height: 1.9; }
.article-body ul { margin: 0 0 16px 20px; list-style: disc; }
.article-body ul li { font-size: 16px; color: #333C36; margin-bottom: 8px; line-height: 1.8; }
.article-body .a-quote {
  background: var(--brand-gray); border-left: 4px solid var(--brand-green);
  padding: 18px 22px; border-radius: 8px; margin: 24px 0; color: var(--text-sub); font-size: 15px; line-height: 1.8;
}
.article-cta { margin-top: 40px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 42px; }
  .footer .f-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --header-h: 62px; }
  .topbar { display: none; }
  .nav-cta .phone { display: none; }
  .hamburger { display: block; }

  .nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: #fff; flex-direction: column; align-items: stretch; padding: 20px;
    gap: 4px; overflow-y: auto; transform: translateX(100%); transition: transform .35s var(--ease);
    z-index: 9999; visibility: hidden; opacity: 0;
  }
  .nav.open,
  .nav:target { transform: none; visibility: visible; opacity: 1; }
  body.no-scroll { overflow: hidden; }
  .nav > li > a { font-size: 17px; padding: 14px; border-bottom: 1px solid var(--line); }
  .dropdown { position: static; transform: none; opacity: 1; visibility: visible; pointer-events: auto; box-shadow: none; border: none; padding: 0 0 8px 16px; min-width: 0; }
  .nav-cta { padding: 16px 0; }

  .hero { padding: 56px 0 70px; }
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 34px; }
  .hero-desc { font-size: 16px; }
  .hero-visual { order: -1; }
  .hero-float.f1 { left: 0; } .hero-float.f2 { right: 0; } .hero-float.f3 { left: 10px; }

  .section { padding: 60px 0; }
  .sec-head h2 { font-size: 28px; }
  .grid-3, .grid-4, .grid-2, .blog-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .page-hero h1 { font-size: 30px; }
  .article-wrap .a-title { font-size: 26px; }
  .cta-band { padding: 40px 28px; }
  .form .f-row { grid-template-columns: 1fr; }
  .footer .f-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
  .vs-table th, .vs-table td { padding: 12px 10px; font-size: 13px; }
  .float-side { right: 12px; bottom: 80px; }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}