/* =========================================================================
   智电云创 BMS 云平台 · 官网样式表
   目录：
     01 设计令牌      02 基础重置      03 排版与工具类    04 按钮
     05 公告条        06 页头与导航    07 通用区块        08 首屏 Hero
     09 信任标识条    10 痛点          11 协议适配        12 架构图
     13 方案卡片      14 能力九宫格    15 定价对比表      16 合规卡片
     17 数据与案例    18 表单          19 FAQ             20 内页通用
     21 时间线        22 数据表格      23 计算器          24 文档中心
     25 页脚          26 悬浮条与移动 CTA                27 响应式
   ========================================================================= */

/* ---------------------------------------------------------- 01 设计令牌 */
:root {
  --navy: #0B1F3A;
  --navy-2: #132C4E;
  --blue: #1B6BFF;
  --blue-dark: #0F4FD8;
  --blue-soft: #E8F0FF;
  --cyan: #0EA5C6;
  --cyan-soft: #E4F7FB;
  --green: #10B981;
  --green-soft: #E6F8F1;
  --amber: #F59E0B;
  --amber-soft: #FEF6E7;
  --red: #E5484D;
  --red-soft: #FDECEC;
  --violet: #7C5CFF;
  --violet-soft: #F0ECFF;

  --bg: #FFFFFF;
  --bg-alt: #F5F8FD;
  --bg-deep: #0B1F3A;
  --line: #E2E9F5;
  --line-strong: #CAD6EA;

  --text: #0B1F3A;
  --text-mid: #4B5F7C;
  --text-muted: #7C8CA6;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --shadow-xs: 0 1px 2px rgba(11, 31, 58, .06);
  --shadow-sm: 0 2px 8px rgba(11, 31, 58, .06);
  --shadow: 0 8px 28px rgba(11, 31, 58, .08);
  --shadow-lg: 0 20px 56px rgba(11, 31, 58, .14);
  --shadow-blue: 0 12px 30px rgba(27, 107, 255, .26);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", ui-monospace, Consolas, "Liberation Mono", Menlo, monospace;

  --container: 1200px;
  --header-h: 68px;
  --ease: cubic-bezier(.22, .68, .32, 1);
}

/* ---------------------------------------------------------- 02 基础重置 */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 76px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { max-width: 100%; vertical-align: middle; }
img { height: auto; }
a { color: var(--blue); text-decoration: none; transition: color .18s var(--ease); }
a:hover { color: var(--blue-dark); }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.28; letter-spacing: -.01em; }
p { margin: 0; }
table { border-collapse: collapse; width: 100%; }
hr { border: 0; border-top: 1px solid var(--line); margin: 0; }

:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--blue); color: #fff; padding: 10px 18px; border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

/* ---------------------------------------------------------- 03 排版与工具类 */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.section { padding: 84px 0; }
.section-tight { padding: 60px 0; }
.section-alt { background: var(--bg-alt); }
.section-deep {
  background: var(--navy); color: #fff;
  background-image: radial-gradient(900px 400px at 12% -10%, rgba(27,107,255,.35), transparent 60%),
                    radial-gradient(700px 380px at 92% 8%, rgba(14,165,198,.24), transparent 60%);
}
.section-deep .section-sub, .section-deep .lead { color: rgba(255,255,255,.76); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: .04em;
  color: var(--blue); background: var(--blue-soft);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 16px;
}
.section-deep .eyebrow { color: #9CC6FF; background: rgba(255,255,255,.1); }
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); }
.section-deep .eyebrow .dot { background: #6EE7B7; }

.section-head { max-width: 760px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: 34px; margin-bottom: 14px; }
.section-head h2 .hl {
  background: linear-gradient(180deg, transparent 62%, rgba(27,107,255,.2) 62%);
  padding: 0 2px;
}
.section-sub { color: var(--text-mid); font-size: 16px; }
.lead { color: var(--text-mid); font-size: 16px; }

.grid { display: grid; gap: 20px; }
.g-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.g-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.g-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }

.text-center { text-align: center; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; } .mt-40 { margin-top: 40px; } .mt-56 { margin-top: 56px; }
.nowrap { white-space: nowrap; }
.mono { font-family: var(--mono); }
.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;
}

/* ---------------------------------------------------------- 04 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 10px; border: 1px solid transparent;
  font-size: 14px; font-weight: 600; line-height: 1.4; white-space: nowrap;
  transition: all .2s var(--ease); text-align: center;
}
.btn svg { flex: none; }
.btn-lg { padding: 15px 32px; font-size: 16px; border-radius: 12px; }
.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; }
.btn-block { width: 100%; }

.btn-primary { background: var(--blue); color: #fff; box-shadow: var(--shadow-blue); }
.btn-primary:hover { background: var(--blue-dark); color: #fff; transform: translateY(-1px);
  box-shadow: 0 16px 34px rgba(27,107,255,.32); }
.btn-primary:active { transform: translateY(0); }

.btn-dark { background: var(--navy); color: #fff; }
.btn-dark:hover { background: var(--navy-2); color: #fff; transform: translateY(-1px); }

.btn-ghost { background: #fff; color: var(--text); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); background: #fff; }

.btn-outline-light { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.32); }
.btn-outline-light:hover { background: rgba(255,255,255,.16); color: #fff; border-color: rgba(255,255,255,.6); }

.btn-link { color: var(--blue); font-weight: 600; padding: 0; background: none; border: 0; }
.btn-link:hover { color: var(--blue-dark); gap: 12px; }
.btn-link::after { content: "→"; transition: transform .2s var(--ease); }
.btn-link:hover::after { transform: translateX(3px); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

/* ---------------------------------------------------------- 05 公告条 */
.notice-bar {
  background: linear-gradient(90deg, #0B1F3A, #17406F 55%, #0E5C7A);
  color: #EAF2FF; font-size: 13px; position: relative; z-index: 60;
}
.notice-inner { display: flex; align-items: center; gap: 10px; min-height: 40px; padding-top: 6px; padding-bottom: 6px; }
.notice-dot {
  width: 7px; height: 7px; border-radius: 50%; background: #34D399; flex: none;
  box-shadow: 0 0 0 0 rgba(52,211,153,.7); animation: pulseDot 2.2s infinite;
}
@keyframes pulseDot {
  0% { box-shadow: 0 0 0 0 rgba(52,211,153,.6); }
  70% { box-shadow: 0 0 0 8px rgba(52,211,153,0); }
  100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); }
}
.notice-text { flex: 1 1 auto; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.notice-text strong { color: #fff; }
.notice-link { color: #8FD0FF; font-weight: 600; flex: none; }
.notice-link:hover { color: #fff; }
.notice-close {
  background: none; border: 0; color: rgba(255,255,255,.6); font-size: 20px;
  line-height: 1; padding: 2px 4px; flex: none; border-radius: 4px;
}
.notice-close:hover { color: #fff; background: rgba(255,255,255,.12); }
body.notice-hidden .notice-bar { display: none; }

/* ---------------------------------------------------------- 06 页头与导航 */
.site-header {
  position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.9);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-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 4px 20px rgba(11,31,58,.06); }
.header-inner { display: flex; align-items: center; gap: 8px; height: var(--header-h); }

.logo { display: flex; align-items: center; gap: 10px; flex: none; color: var(--text); }
.logo:hover { color: var(--text); }
.logo-mark { display: flex; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text strong { font-size: 17px; font-weight: 800; letter-spacing: .01em; }
.logo-text em { font-style: normal; font-size: 11px; color: var(--text-muted); letter-spacing: .06em; }
.logo-footer .logo-text strong { color: #fff; }
.logo-footer .logo-text em { color: rgba(255,255,255,.55); }

.main-nav { display: flex; align-items: center; gap: 2px; margin-left: 20px; flex: 1 1 auto; }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 5px; padding: 9px 13px;
  border-radius: 9px; font-size: 14px; font-weight: 600; color: var(--text);
  background: none; border: 0; transition: all .18s var(--ease); white-space: nowrap;
}
.nav-link:hover { color: var(--blue); background: var(--blue-soft); }
.nav-item.is-active > .nav-link { color: var(--blue); background: var(--blue-soft); }
.caret { width: 9px; height: 6px; opacity: .55; transition: transform .2s var(--ease); }
.nav-item:hover .caret, .nav-item:focus-within .caret { transform: rotate(180deg); }

.nav-menu {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(-6px);
  min-width: 288px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 8px; opacity: 0; visibility: hidden;
  transition: all .2s var(--ease); z-index: 40;
}
.nav-item:hover .nav-menu, .nav-item:focus-within .nav-menu {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.nav-sub { display: block; padding: 9px 12px; border-radius: 9px; transition: background .15s; }
.nav-sub:hover { background: var(--bg-alt); }
.nav-sub-label { display: flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--text); }
.nav-sub:hover .nav-sub-label { color: var(--blue); }
.nav-sub-desc { display: block; font-size: 12px; color: var(--text-muted); margin-top: 1px; }
.nav-sub-tag {
  font-style: normal; font-size: 10px; font-weight: 700; padding: 1px 6px; border-radius: 4px;
  background: var(--blue-soft); color: var(--blue); letter-spacing: .02em;
}
.nav-mobile-extra { display: none; }

.header-actions { display: flex; align-items: center; gap: 10px; flex: none; }
.nav-toggle {
  display: none; width: 40px; height: 40px; border: 1px solid var(--line);
  background: #fff; border-radius: 10px; padding: 11px 10px;
  flex-direction: column; justify-content: space-between;
}
.nav-toggle span { display: block; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s var(--ease), opacity .2s; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-mask {
  position: fixed; inset: 0; background: rgba(11,31,58,.4); z-index: 45;
  opacity: 0; transition: opacity .25s; pointer-events: none;
}
.nav-mask.is-open { opacity: 1; pointer-events: auto; }

/* ---------------------------------------------------------- 07 通用区块 */
.panel {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow-xs); transition: all .25s var(--ease);
}
.panel-hover:hover { border-color: #C6D8F5; box-shadow: var(--shadow); transform: translateY(-3px); }
.panel h3 { font-size: 18px; margin-bottom: 8px; }
.panel p { color: var(--text-mid); font-size: 14px; }

.card {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 26px; transition: all .25s var(--ease); height: 100%;
}
.card:hover { border-color: #BCD2F2; box-shadow: var(--shadow); transform: translateY(-4px); }
.card-icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--blue-soft); color: var(--blue); margin-bottom: 16px; flex: none;
}
.card-icon.green { background: var(--green-soft); color: var(--green); }
.card-icon.cyan { background: var(--cyan-soft); color: var(--cyan); }
.card-icon.amber { background: var(--amber-soft); color: var(--amber); }
.card-icon.violet { background: var(--violet-soft); color: var(--violet); }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--text-mid); font-size: 14px; flex: 1 1 auto; }
.card-tag {
  display: inline-block; font-size: 11px; font-weight: 700; padding: 2px 9px; border-radius: 999px;
  background: var(--blue-soft); color: var(--blue); margin-bottom: 12px; align-self: flex-start;
}
.card-tag.green { background: var(--green-soft); color: #0B8F66; }
.card-tag.amber { background: var(--amber-soft); color: #B4740A; }
.card-tag.violet { background: var(--violet-soft); color: #6244E0; }
.card-foot { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line); font-size: 13px; color: var(--text-muted); }

.badge {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600;
  padding: 4px 10px; border-radius: 999px; background: var(--bg-alt); color: var(--text-mid);
}
.badge.green { background: var(--green-soft); color: #0B8F66; }
.badge.blue { background: var(--blue-soft); color: var(--blue); }
.badge.amber { background: var(--amber-soft); color: #B4740A; }
.badge.gray { background: #EEF2F8; color: #66768F; }
.badge .bdot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ---------------------------------------------------------- 08 首屏 Hero */
.hero {
  position: relative; overflow: hidden; padding: 76px 0 0;
  background: linear-gradient(180deg, #F7FAFF 0%, #FFFFFF 78%);
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(27,107,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27,107,255,.055) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(760px 460px at 22% 8%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(760px 460px at 22% 8%, #000 0%, transparent 78%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; width: 620px; height: 620px; right: -180px; top: -220px;
  background: radial-gradient(circle, rgba(14,165,198,.16), transparent 66%); pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 1; display: grid; grid-template-columns: 1.06fr .94fr;
  gap: 56px; align-items: center; padding-bottom: 64px;
}
.hero h1 { font-size: 50px; line-height: 1.16; letter-spacing: -.024em; margin-bottom: 20px; }
.hero h1 .grad {
  background: linear-gradient(94deg, #1B6BFF 0%, #0EA5C6 92%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: 17px; color: var(--text-mid); max-width: 560px; margin-bottom: 26px; }
.hero-sub strong { color: var(--text); font-weight: 700; }
.hero-micro {
  display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 18px;
  font-size: 13px; color: var(--text-muted);
}
.hero-micro span { display: inline-flex; align-items: center; gap: 6px; }
.hero-micro svg { color: var(--green); flex: none; }

/* -- Hero 右侧：实时数据卡片（实机体验的数字化还原） -- */
.device-stage { position: relative; display: flex; justify-content: center; }
.phone {
  position: relative; width: 306px; background: #0E2340; border-radius: 38px; padding: 11px;
  box-shadow: 0 34px 70px rgba(11,31,58,.3), 0 0 0 1px rgba(255,255,255,.07) inset;
}
.phone::after {
  content: ""; position: absolute; top: 20px; left: 50%; transform: translateX(-50%);
  width: 74px; height: 5px; border-radius: 3px; background: rgba(255,255,255,.18);
}
.phone-screen {
  background: linear-gradient(178deg, #12284A 0%, #0A1A31 100%);
  border-radius: 29px; padding: 34px 16px 18px; color: #fff; overflow: hidden;
}
.ps-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.ps-title { font-size: 13px; font-weight: 700; letter-spacing: .02em; }
.ps-live {
  display: inline-flex; align-items: center; gap: 5px; font-size: 11px; font-weight: 700;
  color: #6EE7B7; background: rgba(16,185,129,.14); padding: 3px 9px; border-radius: 999px;
}
.ps-live i { width: 6px; height: 6px; border-radius: 50%; background: #34D399; font-style: normal;
  animation: pulseDot 1.8s infinite; }

.soc-ring { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.soc-visual { position: relative; width: 96px; height: 96px; flex: none; }
.soc-visual svg { transform: rotate(-90deg); }
.soc-visual .ring-bg { fill: none; stroke: rgba(255,255,255,.11); stroke-width: 9; }
.soc-visual .ring-fg {
  fill: none; stroke: url(#socGrad); stroke-width: 9; stroke-linecap: round;
  stroke-dasharray: 251; stroke-dashoffset: 251; transition: stroke-dashoffset 1.4s var(--ease);
}
.soc-num {
  position: absolute; inset: 0; display: grid; place-items: center; flex-direction: column;
  font-family: var(--mono); font-size: 22px; font-weight: 700;
}
.soc-num small { display: block; font-size: 9px; color: rgba(255,255,255,.5); letter-spacing: .12em; font-weight: 600; }
.soc-meta { display: flex; flex-direction: column; gap: 6px; font-size: 12px; }
.soc-meta-row { display: flex; justify-content: space-between; gap: 10px; color: rgba(255,255,255,.62); }
.soc-meta-row b { color: #fff; font-weight: 700; font-family: var(--mono); }

.metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 14px; }
.metric {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08);
  border-radius: 11px; padding: 9px 11px;
}
.metric-label { font-size: 10px; color: rgba(255,255,255,.5); letter-spacing: .04em; }
.metric-val { font-family: var(--mono); font-size: 17px; font-weight: 700; letter-spacing: -.02em; }
.metric-val small { font-size: 10px; font-weight: 600; color: rgba(255,255,255,.55); margin-left: 2px; }
.metric-val.warn { color: #FBBF24; }

.cell-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; margin-bottom: 13px; }
.cell {
  background: rgba(16,185,129,.14); border: 1px solid rgba(16,185,129,.3);
  border-radius: 6px; padding: 5px 3px; text-align: center;
}
.cell b { display: block; font-family: var(--mono); font-size: 11px; color: #A7F3D0; }
.cell span { font-size: 8px; color: rgba(255,255,255,.42); }
.cell.mid { background: rgba(245,158,11,.16); border-color: rgba(245,158,11,.36); }
.cell.mid b { color: #FCD34D; }
.cell.high { background: rgba(229,72,77,.16); border-color: rgba(229,72,77,.38); }
.cell.high b { color: #FCA5A5; }

.ps-alert {
  display: flex; gap: 8px; align-items: flex-start; background: rgba(245,158,11,.13);
  border: 1px solid rgba(245,158,11,.3); border-radius: 10px; padding: 9px 11px; font-size: 11px; line-height: 1.5;
}
.ps-alert b { color: #FCD34D; }
.ps-alert span { color: rgba(255,255,255,.7); }

.stage-card {
  position: absolute; background: #fff; border-radius: 14px; padding: 12px 15px;
  box-shadow: var(--shadow-lg); border: 1px solid var(--line); font-size: 12px;
  animation: floatY 5.5s ease-in-out infinite;
}
.stage-card strong { display: block; font-size: 13px; color: var(--text); }
.stage-card span { color: var(--text-muted); font-size: 11px; }
.stage-card .sc-val { font-family: var(--mono); font-size: 18px; font-weight: 700; color: var(--blue); }
.sc-a { top: 8%; left: -22px; animation-delay: 0s; }
.sc-b { bottom: 12%; right: -26px; animation-delay: 1.6s; }
.sc-b .sc-val { color: var(--green); }
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-11px); } }

/* ---------------------------------------------------------- 09 信任标识条 */
.trust-bar {
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff;
}
.trust-inner {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; padding: 22px 0;
}
.trust-item { display: flex; align-items: center; gap: 11px; justify-content: center; }
.trust-item + .trust-item { border-left: 1px solid var(--line); }
.trust-icon {
  width: 34px; height: 34px; border-radius: 9px; background: var(--blue-soft);
  color: var(--blue); display: grid; place-items: center; flex: none;
}
.trust-text { line-height: 1.35; }
.trust-text b { display: block; font-size: 15px; font-weight: 800; letter-spacing: -.01em; }
.trust-text span { font-size: 12px; color: var(--text-muted); }

/* ---------------------------------------------------------- 10 痛点 */
.quote-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.quote {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-left: 3px solid var(--blue); border-radius: 4px var(--radius) var(--radius) 4px;
  padding: 20px 22px; font-size: 16px; color: var(--text); line-height: 1.6;
}
.quote::before {
  content: "“"; position: absolute; right: 16px; top: -6px; font-size: 58px;
  color: var(--blue-soft); font-family: Georgia, serif; line-height: 1; pointer-events: none;
}
.quote-wide {
  grid-column: 1 / -1; border-left-color: var(--cyan); text-align: center;
  font-weight: 700; font-size: 18px; padding: 22px;
}
.quote-wide::before { display: none; }
.quote-wide em { font-style: normal; color: var(--blue); }

/* ---------------------------------------------------------- 11 协议适配 */
.brand-wall {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin-bottom: 34px;
}
.brand-chip {
  display: flex; align-items: center; justify-content: center; gap: 7px;
  background: #fff; border: 1px solid var(--line); border-radius: 11px;
  padding: 13px 8px; font-size: 13px; font-weight: 600; color: var(--text);
  transition: all .22s var(--ease); text-align: center;
}
.brand-chip:hover { border-color: var(--blue); color: var(--blue); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.brand-chip i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); flex: none; font-style: normal; }
.brand-chip.pending i { background: var(--amber); }
.brand-chip.more { background: var(--bg-alt); color: var(--text-muted); border-style: dashed; }

.proto-3col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.proto-col { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; }
.proto-col h4 { font-size: 15px; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.proto-col h4 .num {
  width: 22px; height: 22px; border-radius: 6px; background: var(--blue); color: #fff;
  font-size: 12px; display: grid; place-items: center; font-weight: 700; flex: none;
}
.proto-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.proto-tag {
  font-size: 12px; font-family: var(--mono); padding: 4px 10px; border-radius: 7px;
  background: var(--bg-alt); color: var(--text-mid); border: 1px solid var(--line);
}
.proto-list { display: flex; flex-direction: column; gap: 8px; font-size: 13.5px; color: var(--text-mid); }
.proto-list li { display: flex; gap: 8px; align-items: flex-start; }
.proto-list li::before { content: "·"; color: var(--blue); font-weight: 700; }
.proto-promise {
  grid-column: 1 / -1; display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  background: linear-gradient(96deg, #EAF2FF, #E6F6FB); border: 1px solid #CFE2FF;
  border-radius: var(--radius-lg); padding: 20px 24px;
}
.proto-promise p { flex: 1 1 320px; font-size: 15px; color: var(--text); }
.proto-promise strong { color: var(--blue); }

/* ---------------------------------------------------------- 12 架构图 */
.arch { display: flex; flex-direction: column; gap: 12px; }
.arch-layer {
  border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff;
  overflow: hidden; transition: all .25s var(--ease);
}
.arch-layer.is-open { border-color: #B9D2F7; box-shadow: var(--shadow); }
.arch-head {
  display: flex; align-items: center; gap: 16px; padding: 18px 22px; cursor: pointer;
  width: 100%; background: none; border: 0; text-align: left;
}
.arch-badge {
  flex: none; width: 70px; font-size: 13px; font-weight: 800; color: #fff; text-align: center;
  padding: 7px 0; border-radius: 9px;
}
.arch-badge.l1 { background: linear-gradient(135deg,#0EA5C6,#0891B2); }
.arch-badge.l2 { background: linear-gradient(135deg,#1B6BFF,#0F4FD8); }
.arch-badge.l3 { background: linear-gradient(135deg,#7C5CFF,#6244E0); }
.arch-badge.l4 { background: linear-gradient(135deg,#10B981,#0B8F66); }
.arch-title { flex: 1 1 auto; }
.arch-title b { display: block; font-size: 16px; font-weight: 700; }
.arch-title span { font-size: 13px; color: var(--text-muted); }
.arch-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.arch-chips span {
  font-size: 12px; padding: 3px 9px; border-radius: 6px; background: var(--bg-alt);
  color: var(--text-mid); font-family: var(--mono);
}
.arch-caret { flex: none; color: var(--text-muted); transition: transform .25s var(--ease); }
.arch-layer.is-open .arch-caret { transform: rotate(180deg); }
.arch-body {
  display: none; padding: 0 22px 20px; grid-template-columns: repeat(auto-fit, minmax(190px,1fr)); gap: 12px;
}
.arch-layer.is-open .arch-body { display: grid; }
.arch-body div {
  font-size: 13px; color: var(--text-mid); background: var(--bg-alt);
  border-radius: 10px; padding: 12px 14px; border-left: 2px solid var(--blue);
}
.arch-body div b { display: block; color: var(--text); font-size: 13.5px; margin-bottom: 3px; }
.arch-arrow { display: flex; justify-content: center; }
.arch-arrow svg { color: var(--line-strong); }

/* ---------------------------------------------------------- 13 方案卡片 */
.sol-card {
  position: relative; overflow: hidden; display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 26px; transition: all .25s var(--ease); height: 100%;
}
.sol-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  opacity: 0; transition: opacity .25s;
}
.sol-card:hover { border-color: #B9D2F7; box-shadow: var(--shadow); transform: translateY(-4px); }
.sol-card:hover::before { opacity: 1; }
.sol-card h3 { font-size: 18px; margin-bottom: 8px; }
.sol-card .sol-pitch { font-size: 15px; font-weight: 600; color: var(--blue); margin-bottom: 10px; line-height: 1.55; }
.sol-card .sol-solve { font-size: 13.5px; color: var(--text-mid); flex: 1 1 auto; }
.sol-card .card-foot { display: flex; align-items: center; justify-content: space-between; }

/* ---------------------------------------------------------- 14 能力九宫格 */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.cap {
  background: #fff; padding: 26px 22px; transition: background .22s var(--ease); position: relative;
}
.cap:hover { background: #F8FBFF; }
.cap-icon { color: var(--blue); margin-bottom: 13px; }
.cap h4 { font-size: 15.5px; margin-bottom: 6px; }
.cap p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ---------------------------------------------------------- 15 定价对比表 */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; }
.cmp-table { min-width: 800px; font-size: 14px; }
.cmp-table th, .cmp-table td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
.cmp-table thead th {
  background: var(--bg-alt); font-size: 14px; font-weight: 700; color: var(--text);
  position: sticky; top: 0; z-index: 2; white-space: nowrap;
}
.cmp-table thead th:first-child { color: var(--text-muted); font-weight: 600; font-size: 13px; }
.cmp-table tbody th { font-weight: 600; color: var(--text-mid); font-size: 13.5px; background: #FCFDFF; }
.cmp-table tbody tr:last-child th, .cmp-table tbody tr:last-child td { border-bottom: 0; }
.cmp-table tbody tr:hover td { background: #FAFCFF; }
.cmp-table .col-hl { background: linear-gradient(180deg,#F2F7FF,#FFFFFF); position: relative; }
.cmp-table .col-hl b { color: var(--blue); }
.cmp-table .col-hl-head { background: linear-gradient(180deg,#1B6BFF,#0F4FD8) !important; color: #fff !important; }
.cmp-table .col-hl-head .sub { display: block; font-size: 11px; font-weight: 500; opacity: .8; }
.cmp-table .feat-name { color: var(--text); font-weight: 600; }
.cmp-table .yes { color: #0B8F66; font-weight: 600; }
.cmp-table .no { color: var(--text-muted); }

/* ---------------------------------------------------------- 16 合规卡片 */
.policy-card {
  position: relative; overflow: hidden; border-radius: var(--radius-lg); padding: 30px;
  border: 1px solid var(--line); background: #fff; height: 100%;
  display: flex; flex-direction: column;
}
.policy-card .pc-flag { font-size: 12px; font-weight: 700; letter-spacing: .06em; color: var(--text-muted); margin-bottom: 14px; }
.policy-card h3 { font-size: 21px; margin-bottom: 6px; }
.policy-card .pc-code { font-family: var(--mono); font-size: 13px; color: var(--blue); margin-bottom: 16px; }
.policy-card p { font-size: 14px; color: var(--text-mid); margin-bottom: 18px; flex: 1 1 auto; }
.policy-card .pc-deadline {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700;
  padding: 7px 14px; border-radius: 999px; align-self: flex-start; margin-bottom: 18px;
}
.policy-card.cn .pc-deadline { background: var(--red-soft); color: #B62B30; }
.policy-card.eu .pc-deadline { background: var(--blue-soft); color: var(--blue); }
.policy-card .pc-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------------------------------------------------------- 17 数据与案例 */
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat {
  text-align: center; padding: 28px 16px; border-radius: var(--radius-lg);
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
}
.stat b { display: block; font-size: 40px; font-weight: 800; letter-spacing: -.03em; line-height: 1.1; color: #fff; }
.stat b em { font-style: normal; font-size: 20px; margin-left: 2px; color: #8FD0FF; }
.stat span { font-size: 13px; color: rgba(255,255,255,.66); }

.stat-strip-light .stat { background: #fff; border-color: var(--line); }
.stat-strip-light .stat b { color: var(--text); }
.stat-strip-light .stat b em { color: var(--blue); }
.stat-strip-light .stat span { color: var(--text-muted); }

.case-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 26px; height: 100%; display: flex; flex-direction: column; transition: all .25s var(--ease);
}
.case-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: #BCD2F2; }
.case-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.case-card h3 { font-size: 17px; margin-bottom: 12px; }
.case-block { margin-bottom: 12px; }
.case-block dt { font-size: 11px; font-weight: 700; color: var(--text-muted); letter-spacing: .06em; margin-bottom: 3px; }
.case-block dd { margin: 0; font-size: 14px; color: var(--text-mid); }
.case-result {
  margin-top: auto; padding-top: 16px; border-top: 1px dashed var(--line);
}
.case-result dl { display: grid; grid-template-columns: repeat(auto-fit,minmax(90px,1fr)); gap: 12px; }
.case-result dd { margin: 0; }
.case-result b { display: block; font-size: 20px; font-weight: 800; color: var(--blue); letter-spacing: -.02em; }
.case-result small { font-size: 11.5px; color: var(--text-muted); }

/* ---------------------------------------------------------- 18 表单 */
.lead-form { display: flex; flex-direction: column; gap: 15px; }
.form-row { display: flex; flex-direction: column; gap: 6px; }
.form-row label { font-size: 13px; font-weight: 600; color: var(--text); }
.form-row label i { color: var(--red); font-style: normal; margin-left: 2px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line-strong); border-radius: 10px;
  background: #fff; color: var(--text); font-size: 14px; transition: all .18s var(--ease);
}
.form-row input::placeholder, .form-row textarea::placeholder { color: #A9B6C9; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(27,107,255,.13);
}
.form-row input.is-error, .form-row select.is-error { border-color: var(--red); box-shadow: 0 0 0 3px rgba(229,72,77,.12); }
.form-row .err-msg { font-size: 12px; color: var(--red); display: none; }
.form-row.has-error .err-msg { display: block; }
.form-row textarea { resize: vertical; min-height: 96px; }
.form-hint { font-size: 12.5px; color: var(--text-muted); text-align: center; line-height: 1.6; }
.form-consent { display: flex; gap: 9px; align-items: flex-start; font-size: 12.5px; color: var(--text-muted); }
.form-consent input { width: 15px; height: 15px; margin-top: 3px; flex: none; accent-color: var(--blue); }
.form-status { font-size: 13.5px; border-radius: 10px; padding: 0; transition: all .25s var(--ease); }
.form-status:not(:empty) { padding: 12px 15px; }
.form-status.ok { background: var(--green-soft); color: #0B7A58; border: 1px solid #B6E8D5; }
.form-status.err { background: var(--red-soft); color: #B62B30; border: 1px solid #F5C9CA; }
.form-status.info { background: var(--blue-soft); color: var(--blue-dark); border: 1px solid #C6DBFF; }
.form-status a { font-weight: 700; text-decoration: underline; }

.form-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 15px; }

.lead-form-inline {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow); color: var(--text); min-width: 0;
}

.cta-band {
  background: var(--navy); color: #fff; padding: 72px 0;
  background-image: radial-gradient(760px 380px at 8% 0%, rgba(27,107,255,.4), transparent 62%),
                    radial-gradient(640px 360px at 96% 100%, rgba(14,165,198,.26), transparent 62%);
}
.cta-band-inner { display: grid; grid-template-columns: 1fr 460px; gap: 52px; align-items: center; }
.cta-band-eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .05em;
  color: #8FD0FF; border: 1px solid rgba(143,208,255,.34); padding: 5px 14px;
  border-radius: 999px; margin-bottom: 18px;
}
.cta-band h2 { font-size: 34px; margin-bottom: 16px; }
.cta-band-sub { color: rgba(255,255,255,.76); font-size: 16px; margin-bottom: 22px; }
.cta-band-sub strong { color: #fff; }
.cta-band-points { display: flex; flex-direction: column; gap: 10px; }
.cta-band-points li { display: flex; align-items: center; gap: 10px; font-size: 14.5px; color: rgba(255,255,255,.86); }
.cta-band-points li::before {
  content: ""; width: 18px; height: 18px; border-radius: 50%; flex: none;
  background: rgba(16,185,129,.2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2334D399' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/11px no-repeat;
}

/* ---------------------------------------------------------- 19 FAQ */
.faq-list { display: flex; flex-direction: column; gap: 12px; max-width: 900px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: all .22s var(--ease); }
.faq-item.is-open { border-color: #B9D2F7; box-shadow: var(--shadow-sm); }
.faq-q {
  display: flex; align-items: center; gap: 14px; width: 100%; text-align: left;
  padding: 19px 22px; background: none; border: 0; font-size: 16px; font-weight: 600; color: var(--text);
}
.faq-q:hover { color: var(--blue); }
.faq-q .q-mark {
  flex: none; width: 24px; height: 24px; border-radius: 7px; background: var(--blue-soft);
  color: var(--blue); font-size: 12px; display: grid; place-items: center; font-weight: 800;
}
.faq-q span { flex: 1 1 auto; }
.faq-q .q-caret { flex: none; color: var(--text-muted); transition: transform .25s var(--ease); }
.faq-item.is-open .q-caret { transform: rotate(180deg); }
.faq-a { display: none; padding: 0 22px 20px 60px; color: var(--text-mid); font-size: 14.5px; }
.faq-item.is-open .faq-a { display: block; }
.faq-a p + p { margin-top: 10px; }
.faq-a ul { display: flex; flex-direction: column; gap: 6px; margin-top: 10px; }
.faq-a li { display: flex; gap: 8px; }
.faq-a li::before { content: "▸"; color: var(--blue); font-size: 11px; line-height: 1.9; }

/* ---------------------------------------------------------- 20 内页通用 */
.page-hero {
  position: relative; padding: 56px 0 52px; background: var(--bg-alt);
  border-bottom: 1px solid var(--line); overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; right: -120px; top: -160px; width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(27,107,255,.12), transparent 66%); pointer-events: none;
}
.page-hero-inner { position: relative; z-index: 1; max-width: 860px; }
.page-hero h1 { font-size: 38px; margin-bottom: 16px; letter-spacing: -.02em; }
.page-hero .page-sub { font-size: 17px; color: var(--text-mid); }
.page-hero .btn-row { margin-top: 26px; }
.page-hero-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

.crumbs { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); margin-bottom: 20px; }
.crumbs a { color: var(--text-muted); }
.crumbs a:hover { color: var(--blue); }
.crumbs .sep { opacity: .5; }
.crumbs .cur { color: var(--text); font-weight: 600; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; }
.split.reverse .split-visual { order: -1; }
.split h2 { font-size: 30px; margin-bottom: 16px; }
.split p { color: var(--text-mid); margin-bottom: 14px; }

.check-list { display: flex; flex-direction: column; gap: 12px; }
.check-list li { display: flex; gap: 11px; align-items: flex-start; font-size: 15px; color: var(--text-mid); }
.check-list li b { color: var(--text); font-weight: 600; }
.check-list li::before {
  content: ""; flex: none; width: 20px; height: 20px; margin-top: 2px; border-radius: 50%;
  background: var(--green-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2310B981' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/12px no-repeat;
}

.warn-list li::before {
  background: var(--amber-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23F59E0B' stroke-width='2.6' stroke-linecap='round'%3E%3Cpath d='M12 8v5M12 16.5v.01'/%3E%3C/svg%3E") center/14px no-repeat;
}

.kv-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(170px,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.kv { background: #fff; padding: 20px 22px; }
.kv dt { font-size: 12px; color: var(--text-muted); margin-bottom: 5px; }
.kv dd { margin: 0; font-size: 17px; font-weight: 700; letter-spacing: -.01em; }
.kv dd small { font-size: 12px; font-weight: 600; color: var(--text-muted); }

.soft-panel {
  background: var(--bg-alt); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px;
}
.note {
  display: flex; gap: 12px; padding: 16px 20px; border-radius: var(--radius);
  background: var(--amber-soft); border: 1px solid #F7DFAE; font-size: 13.5px; color: #8A5A08;
}
.note.blue { background: var(--blue-soft); border-color: #C6DBFF; color: var(--blue-dark); }
.note.green { background: var(--green-soft); border-color: #B6E8D5; color: #0B7A58; }
.note svg { flex: none; margin-top: 2px; }

.inner-cta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 20px; justify-content: space-between;
  background: linear-gradient(96deg, #EAF2FF, #E6F6FB); border: 1px solid #CFE2FF;
  border-radius: var(--radius-lg); padding: 26px 30px;
}
.inner-cta h3 { font-size: 20px; margin-bottom: 5px; }
.inner-cta p { font-size: 14px; color: var(--text-mid); }

/* ---------------------------------------------------------- 21 时间线 */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; left: 9px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(180deg, var(--blue), var(--cyan));
}
.tl-item { position: relative; padding-bottom: 30px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -30px; top: 6px; width: 12px; height: 12px;
  border-radius: 50%; background: #fff; border: 3px solid var(--blue);
}
.tl-item.is-past::before { border-color: var(--green); background: var(--green); }
.tl-item.is-future::before { border-color: var(--line-strong); }
.tl-date { font-family: var(--mono); font-size: 13px; font-weight: 700; color: var(--blue); margin-bottom: 5px; }
.tl-item.is-past .tl-date { color: #0B7A66; }
.tl-item.is-future .tl-date { color: var(--text-muted); }
.tl-item h3, .tl-item h4 { font-size: 16px; margin-bottom: 6px; }
.tl-item p { font-size: 14px; color: var(--text-mid); }

/* ---------------------------------------------------------- 22 数据表格 */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 16px 18px; margin-bottom: 20px; box-shadow: var(--shadow-xs);
}
.search-box { position: relative; flex: 1 1 280px; min-width: 200px; }
.search-box svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); }
.search-box input {
  width: 100%; padding: 11px 14px 11px 42px; border: 1px solid var(--line-strong);
  border-radius: 10px; font-size: 14px; background: #fff;
}
.search-box input:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(27,107,255,.13); }
.filter-chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chip {
  padding: 8px 15px; border-radius: 999px; border: 1px solid var(--line-strong); background: #fff;
  font-size: 13px; font-weight: 600; color: var(--text-mid); transition: all .18s var(--ease);
}
.chip:hover { border-color: var(--blue); color: var(--blue); }
.chip.is-active { background: var(--blue); border-color: var(--blue); color: #fff; }
.filter-count { font-size: 13px; color: var(--text-muted); margin-bottom: 14px; }
.filter-count b { color: var(--blue); font-weight: 700; }

.data-table { min-width: 860px; font-size: 13.5px; }
.data-table th, .data-table td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line); }
.data-table thead th {
  background: var(--bg-alt); font-size: 13px; font-weight: 700; white-space: nowrap;
  position: sticky; top: 0; z-index: 2;
}
.data-table tbody tr:hover { background: #FAFCFF; }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table .t-brand { font-weight: 700; color: var(--text); white-space: nowrap; }
.data-table .t-model { font-family: var(--mono); font-size: 12.5px; color: var(--text-mid); }
.iface-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.iface-tag {
  font-family: var(--mono); font-size: 11px; padding: 2px 7px; border-radius: 5px;
  background: var(--blue-soft); color: var(--blue-dark);
}
.status-dot { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 600; white-space: nowrap; }
.status-dot i { width: 7px; height: 7px; border-radius: 50%; flex: none; font-style: normal; }
.status-dot.done { color: #0B8F66; } .status-dot.done i { background: var(--green); }
.status-dot.testing { color: #B4740A; } .status-dot.testing i { background: var(--amber); }
.status-dot.dev { color: var(--blue); } .status-dot.dev i { background: var(--blue); }
.empty-row td { text-align: center; padding: 46px 16px !important; color: var(--text-muted); }

/* ---------------------------------------------------------- 23 计算器 */
.calc { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: #fff; }
.calc-inputs { padding: 30px; }
.calc-output {
  padding: 30px; color: #fff; display: flex; flex-direction: column;
  background: linear-gradient(160deg, #0B1F3A, #16457A);
}
.calc-field { margin-bottom: 22px; }
.calc-field:last-child { margin-bottom: 0; }
.calc-field-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.calc-field-top label { font-size: 14px; font-weight: 600; }
.calc-field-top output { font-family: var(--mono); font-size: 15px; font-weight: 700; color: var(--blue); }
.calc-range { width: 100%; -webkit-appearance: none; appearance: none; height: 5px; border-radius: 3px; background: var(--line); outline: none; }
.calc-range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 20px; height: 20px; border-radius: 50%;
  background: var(--blue); border: 3px solid #fff; box-shadow: 0 2px 8px rgba(27,107,255,.4); cursor: pointer;
}
.calc-range::-moz-range-thumb {
  width: 20px; height: 20px; border-radius: 50%; background: var(--blue);
  border: 3px solid #fff; box-shadow: 0 2px 8px rgba(27,107,255,.4); cursor: pointer;
}
.calc-seg { display: flex; gap: 8px; flex-wrap: wrap; }
.calc-seg button {
  padding: 8px 15px; border-radius: 9px; border: 1px solid var(--line-strong);
  background: #fff; font-size: 13px; font-weight: 600; color: var(--text-mid); transition: all .18s var(--ease);
}
.calc-seg button.is-active { background: var(--blue); border-color: var(--blue); color: #fff; }
.calc-amount { font-size: 46px; font-weight: 800; letter-spacing: -.03em; line-height: 1.08; margin: 6px 0 4px; }
.calc-amount small { font-size: 17px; font-weight: 600; opacity: .7; margin-left: 4px; }
.calc-amount-note { font-size: 13px; color: rgba(255,255,255,.66); margin-bottom: 24px; }
.calc-breakdown { display: flex; flex-direction: column; gap: 11px; margin-bottom: 26px; }
.calc-breakdown div { display: flex; justify-content: space-between; font-size: 13.5px; color: rgba(255,255,255,.76); }
.calc-breakdown div b { color: #fff; font-family: var(--mono); }
.calc-breakdown hr { border-top-color: rgba(255,255,255,.14); margin: 4px 0; }
.calc-output .btn { margin-top: auto; }
.calc-tip { font-size: 11.5px; color: rgba(255,255,255,.5); margin-top: 14px; text-align: center; }

/* ---------------------------------------------------------- 24 文档中心 */
.docs-layout { display: grid; grid-template-columns: 236px 1fr; gap: 44px; align-items: start; }
.docs-nav { position: sticky; top: calc(var(--header-h) + 28px); }
.docs-nav h4 { font-size: 12px; letter-spacing: .08em; color: var(--text-muted); margin-bottom: 12px; text-transform: uppercase; }
.docs-nav ul { display: flex; flex-direction: column; gap: 2px; margin-bottom: 24px; }
.docs-nav a {
  display: block; padding: 8px 13px; border-radius: 8px; font-size: 14px;
  color: var(--text-mid); border-left: 2px solid transparent;
}
.docs-nav a:hover { background: var(--bg-alt); color: var(--text); }
.docs-nav a.is-active { color: var(--blue); background: var(--blue-soft); border-left-color: var(--blue); font-weight: 600; }
.docs-body { min-width: 0; }
.docs-body h2 { font-size: 26px; margin: 0 0 14px; padding-top: 6px; }
.docs-body h3 { font-size: 19px; margin: 34px 0 12px; }
.docs-body h4 { font-size: 16px; margin: 24px 0 10px; }
.docs-body p { color: var(--text-mid); margin-bottom: 14px; }
.docs-body ul { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.docs-body ul li { display: flex; gap: 9px; color: var(--text-mid); font-size: 14.5px; }
.docs-body ul li::before { content: "·"; color: var(--blue); font-weight: 700; }
.docs-body section { padding-bottom: 30px; border-bottom: 1px dashed var(--line); margin-bottom: 34px; }
.docs-body section:last-child { border-bottom: 0; }

.code-block {
  background: #0C1E36; border-radius: var(--radius); overflow: hidden; margin-bottom: 18px;
  border: 1px solid #1B3355;
}
.code-head {
  display: flex; align-items: center; justify-content: space-between; padding: 9px 15px;
  background: rgba(255,255,255,.04); border-bottom: 1px solid rgba(255,255,255,.07);
}
.code-head span { font-size: 12px; color: rgba(255,255,255,.6); font-family: var(--mono); }
.copy-btn {
  background: rgba(255,255,255,.08); border: 0; color: rgba(255,255,255,.7);
  font-size: 11.5px; padding: 4px 11px; border-radius: 6px; transition: all .18s;
}
.copy-btn:hover { background: rgba(255,255,255,.18); color: #fff; }
.code-block pre { margin: 0; padding: 17px 19px; overflow-x: auto; }
.code-block code {
  font-family: var(--mono); font-size: 12.8px; line-height: 1.75; color: #C9E1FF; white-space: pre;
}
.code-block code .k { color: #7FD4FF; }
.code-block code .s { color: #A7F3D0; }
.code-block code .c { color: #6A89AD; }

.api-table { min-width: 700px; font-size: 13.5px; }
.api-table th, .api-table td { padding: 12px 15px; text-align: left; border-bottom: 1px solid var(--line); }
.api-table thead th { background: var(--bg-alt); font-size: 12.5px; white-space: nowrap; }
.api-table .method {
  font-family: var(--mono); font-size: 11px; font-weight: 700; padding: 2px 8px;
  border-radius: 5px; color: #fff; white-space: nowrap;
}
.method.get { background: #0B8F66; } .method.post { background: var(--blue); }
.method.put { background: #B4740A; } .method.del { background: var(--red); }
.api-table code { font-family: var(--mono); font-size: 12.5px; color: var(--text); }

/* ---------------------------------------------------------- 25 页脚 */
.site-footer { background: var(--navy); color: rgba(255,255,255,.72); padding: 60px 0 28px; font-size: 13.5px; margin-bottom: 0; }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr 1fr; gap: 36px; padding-bottom: 40px; }
.footer-col h4 { font-size: 14px; color: #fff; margin-bottom: 16px; font-weight: 700; }
.footer-col ul { display: flex; flex-direction: column; gap: 9px; }
.footer-col a { color: rgba(255,255,255,.68); font-size: 13.5px; }
.footer-col a:hover { color: #fff; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-desc { color: rgba(255,255,255,.6); line-height: 1.75; margin-bottom: 18px; font-size: 13.5px; }
.footer-contact { display: flex; flex-direction: column; gap: 7px; }
.footer-contact li { color: rgba(255,255,255,.6); font-size: 13px; }
.footer-contact a { color: rgba(255,255,255,.9); font-weight: 600; }
.footer-links-bar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px;
  padding: 18px 0; border-top: 1px solid rgba(255,255,255,.1); font-size: 12.5px;
}
.footer-links-title { color: rgba(255,255,255,.45); }
.footer-links-bar a { color: rgba(255,255,255,.6); }
.footer-links-bar a:hover { color: #fff; }
.footer-bottom {
  padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1);
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: center;
}
.copyright { color: rgba(255,255,255,.55); font-size: 12.5px; }
.copyright a { color: rgba(255,255,255,.7); }
.copyright a:hover { color: #fff; }
.copyright .sep { opacity: .35; margin: 0 4px; }
.footer-tip { color: rgba(255,255,255,.34); font-size: 11.5px; }

/* ---------------------------------------------------------- 26 悬浮条与移动 CTA */
.float-bar {
  position: fixed; right: 18px; bottom: 96px; z-index: 48;
  display: flex; flex-direction: column; gap: 8px;
}
.float-item { position: relative; }
.float-btn {
  width: 52px; height: 52px; border-radius: 14px; background: #fff; border: 1px solid var(--line);
  box-shadow: var(--shadow); display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 1px; color: var(--text-mid);
  font-size: 10.5px; font-weight: 600; transition: all .2s var(--ease);
}
.float-btn:hover { background: var(--blue); border-color: var(--blue); color: #fff; transform: translateY(-2px); }
.float-qr:hover .float-pop { opacity: 1; visibility: visible; transform: translateX(0); }
.float-pop {
  position: absolute; right: calc(100% + 12px); top: 50%; transform: translateY(-50%) translateX(8px);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow-lg); text-align: center; width: 176px;
  opacity: 0; visibility: hidden; transition: all .22s var(--ease); pointer-events: none;
}
.float-pop img { border-radius: 8px; margin-bottom: 9px; }
.float-pop p { font-size: 13px; font-weight: 700; color: var(--text); }
.float-pop .qr-sub { font-size: 11.5px; font-weight: 400; color: var(--text-muted); margin-top: 3px; }
.float-top { padding: 0; }

.mobile-cta-bar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 49;
  background: rgba(255,255,255,.96); backdrop-filter: blur(12px);
  border-top: 1px solid var(--line); padding: 9px 14px calc(9px + env(safe-area-inset-bottom));
  gap: 10px;
}
.mobile-cta-call {
  flex: none; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1px; font-size: 11px; color: var(--text-mid); width: 74px;
}
.mobile-cta-main {
  flex: 1 1 auto; display: flex; align-items: center; justify-content: center;
  background: var(--blue); color: #fff; font-weight: 700; font-size: 15px;
  border-radius: 11px; height: 46px; box-shadow: var(--shadow-blue);
}

/* ---------------------------------------------------------- 27 其他 */
.err-page { padding: 120px 0; text-align: center; }
.err-code { font-size: 96px; font-weight: 800; letter-spacing: -.04em; line-height: 1;
  background: linear-gradient(120deg, var(--blue), var(--cyan)); -webkit-background-clip: text;
  background-clip: text; color: transparent; margin-bottom: 12px; }
.err-page h1 { font-size: 26px; margin-bottom: 12px; }
.err-page p { color: var(--text-mid); margin-bottom: 26px; }

/* 入场动画仅在 JS 可用时启用，避免脚本失效导致内容不可见（SEO 与健壮性） */
.no-js .reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .js .reveal { opacity: 1; transform: none; transition: none; }
  .stage-card, .notice-dot, .ps-live i { animation: none !important; }
  html { scroll-behavior: auto; }
}

/* ---------------------------------------------------------- 28 响应式 */
@media (max-width: 1180px) {
  .hero h1 { font-size: 44px; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; gap: 30px; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 1024px) {
  :root { --header-h: 62px; }
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-actions .btn-ghost { display: none; }

  .main-nav {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: fixed; top: 0; right: 0; bottom: 0; width: min(340px, 88vw);
    background: #fff; z-index: 46; padding: 22px 18px 30px; margin: 0;
    overflow-y: auto; box-shadow: -14px 0 40px rgba(11,31,58,.18);
    transform: translateX(102%); transition: transform .3s var(--ease);
  }
  .main-nav.is-open { transform: none; }
  .nav-item { border-bottom: 1px solid var(--line); }
  .nav-link {
    width: 100%; justify-content: space-between; padding: 15px 6px;
    font-size: 15.5px; border-radius: 0; background: none !important;
  }
  .nav-item.is-active > .nav-link { color: var(--blue); }
  .caret { width: 11px; height: 7px; }
  .nav-menu {
    position: static; transform: none !important; opacity: 1; visibility: visible;
    box-shadow: none; border: 0; padding: 0 0 12px; min-width: 0; display: none;
  }
  .nav-item.is-expanded .nav-menu { display: block; }
  .nav-item.is-expanded .caret { transform: rotate(180deg); }
  .nav-sub { padding: 11px 10px; background: var(--bg-alt); margin-bottom: 6px; }
  .nav-mobile-extra { display: flex; flex-direction: column; gap: 10px; margin-top: 22px; }

  .hero-inner { grid-template-columns: 1fr; gap: 44px; padding-bottom: 52px; }
  .hero h1 { font-size: 40px; }
  .hero-sub { max-width: none; }
  .device-stage { transform: scale(.94); }

  .split { grid-template-columns: 1fr; gap: 34px; }
  .split.reverse .split-visual { order: 0; }
  .cta-band-inner { grid-template-columns: 1fr; gap: 34px; }
  .calc { grid-template-columns: 1fr; }
  .docs-layout { grid-template-columns: 1fr; gap: 28px; }
  .docs-nav { position: static; display: flex; flex-wrap: wrap; gap: 16px; }
  .docs-nav ul { flex-direction: row; flex-wrap: wrap; margin-bottom: 0; }
  .docs-nav h4 { width: 100%; margin-bottom: 4px; }
  .g-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .brand-wall { grid-template-columns: repeat(4, 1fr); }
  .section { padding: 62px 0; }
}

@media (max-width: 760px) {
  body { font-size: 14.5px; }
  .container { padding: 0 18px; }
  .section { padding: 50px 0; }
  .section-head { margin-bottom: 30px; }
  .section-head h2 { font-size: 25px; }
  .page-hero { padding: 34px 0 38px; }
  .page-hero h1 { font-size: 27px; }
  .page-hero .page-sub { font-size: 15px; }
  .hero { padding: 42px 0 0; }
  .hero h1 { font-size: 31px; margin-bottom: 16px; }
  .hero-sub { font-size: 15.5px; }
  .hero-micro { flex-direction: column; gap: 7px; font-size: 12.5px; }
  .btn-lg { padding: 13px 22px; font-size: 15px; width: 100%; }
  .btn-row .btn { flex: 1 1 auto; }
  .hero .btn-row .btn { width: 100%; }
  .trust-inner { grid-template-columns: repeat(2, 1fr); gap: 16px 8px; padding: 18px 0; }
  .trust-item { border-left: 0 !important; justify-content: flex-start; }
  .quote-grid { grid-template-columns: 1fr; }
  .quote { font-size: 15px; padding: 17px 18px; }
  .quote-wide { font-size: 15.5px; }
  .g-2, .g-3, .g-4 { grid-template-columns: 1fr; }
  .brand-wall { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .brand-chip { font-size: 12px; padding: 11px 5px; }
  .proto-3col { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat b { font-size: 30px; }
  .cta-band { padding: 46px 0; }
  .cta-band h2 { font-size: 24px; }
  .lead-form-inline { padding: 20px; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .stage-card { display: none; }
  .device-stage { transform: none; }
  .phone { width: min(300px, 88vw); }
  .arch-head { flex-wrap: wrap; gap: 10px; padding: 15px 16px; }
  .arch-badge { width: 56px; font-size: 12px; }
  .arch-chips { display: none; }
  .arch-body { padding: 0 16px 16px; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px; }
  .footer-brand { grid-column: 1 / -1; }
  .site-footer { padding: 42px 0 96px; }
  .float-bar { display: none; }
  .mobile-cta-bar { display: flex; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .inner-cta { padding: 20px; }
  .timeline { padding-left: 26px; }
  .tl-item::before { left: -25px; width: 10px; height: 10px; }
  .calc-inputs, .calc-output { padding: 22px; }
  .calc-amount { font-size: 34px; }
  .notice-text { font-size: 12px; white-space: normal; line-height: 1.45; }
  .notice-link { display: none; }
  .notice-inner { padding-top: 8px; padding-bottom: 8px; }
  .faq-a { padding-left: 22px; }
}

@media (max-width: 380px) {
  .brand-wall { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
}

@media print {
  .site-header, .notice-bar, .float-bar, .mobile-cta-bar, .cta-band, .site-footer { display: none; }
  body { font-size: 12px; }
  .panel, .card { break-inside: avoid; }
}

/* ---------------------------------------------------------- 25 定价方案 */
.plan-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; align-items: stretch; }
.plan {
  position: relative; display: flex; flex-direction: column; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px 24px;
  transition: all .25s var(--ease);
}
.plan:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.plan.is-featured { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(27,107,255,.09); }
.plan-flag {
  position: absolute; top: -11px; left: 24px; font-size: 11px; font-weight: 700;
  padding: 3px 11px; border-radius: 999px; background: var(--blue); color: #fff;
}
.plan-name { font-size: 17px; margin-bottom: 5px; }
.plan-desc { font-size: 13px; color: var(--text-muted); min-height: 40px; line-height: 1.6; }
.plan-price { font-family: var(--mono); font-size: 31px; font-weight: 800; letter-spacing: -.03em; margin: 14px 0 2px; }
.plan-price small { font-size: 14px; font-weight: 600; color: var(--text-muted); }
.plan-unit { font-size: 12.5px; color: var(--text-muted); margin-bottom: 18px; }
.plan-list { display: flex; flex-direction: column; gap: 9px; font-size: 13.5px; color: var(--text-mid); flex: 1; }
.plan-list li { display: flex; gap: 8px; align-items: flex-start; line-height: 1.55; }
.plan-list li::before { content: "✓"; color: var(--green); font-weight: 700; flex: none; }
.plan-list li.no { color: var(--text-muted); }
.plan-list li.no::before { content: "—"; color: #C3CEDC; }
.plan .btn { margin-top: 20px; }
@media (max-width: 1100px) { .plan-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 620px) { .plan-grid { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------- 26 资源 / 关于 */
.res-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.res-card {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 24px; transition: all .25s var(--ease); height: 100%;
}
.res-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: #BCD2F2; }
.res-type { font-size: 11px; font-weight: 700; color: var(--blue); letter-spacing: .06em; margin-bottom: 10px; }
.res-card h3 { font-size: 16.5px; margin-bottom: 8px; line-height: 1.5; }
.res-card p { font-size: 13.5px; color: var(--text-mid); flex: 1; }
.res-foot { margin-top: 16px; font-size: 12.5px; color: var(--text-muted); display: flex; gap: 10px; align-items: center; }
@media (max-width: 980px) { .res-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }
@media (max-width: 620px) { .res-grid { grid-template-columns: 1fr; } }

.about-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.about-cell { background: #fff; padding: 26px 22px; }
.about-cell b { display: block; font-size: 32px; font-weight: 800; letter-spacing: -.03em; color: var(--blue); font-family: var(--mono); }
.about-cell span { font-size: 13px; color: var(--text-muted); }
@media (max-width: 900px) { .about-grid { grid-template-columns: repeat(2, minmax(0,1fr)); } }

.contact-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.value-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
@media (max-width: 900px) { .value-grid { grid-template-columns: 1fr; } }