/* ==========================================================================
   聚付宝 官网样式表
   纯静态、零外部依赖（不引用任何 CDN / 外链字体），适合国内备案环境部署
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  /* 品牌色 */
  --brand: #1554f0;
  --brand-600: #0e3fbf;
  --brand-700: #0a3096;
  --brand-50: #eef3ff;
  --brand-100: #dfe8ff;

  /* 辅助色 */
  --accent: #00c08b;
  --accent-50: #e6faf3;
  --warn: #ff8a3d;
  --danger: #f0453a;

  /* 中性色 */
  --ink: #0a1633;
  --ink-2: #46536b;
  --ink-3: #7a8699;
  --ink-4: #a9b3c4;
  --line: #e6eaf2;
  --line-soft: #eff2f8;
  --bg: #ffffff;
  --bg-soft: #f6f8fc;
  --bg-dark: #061229;

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

  /* 阴影 */
  --shadow-xs: 0 1px 2px rgba(10, 22, 51, .06);
  --shadow-sm: 0 4px 14px rgba(10, 22, 51, .07);
  --shadow: 0 10px 34px rgba(10, 22, 51, .09);
  --shadow-lg: 0 24px 60px rgba(10, 22, 51, .14);
  --shadow-brand: 0 12px 30px rgba(21, 84, 240, .28);

  /* 布局 */
  --container: 1200px;
  --header-h: 72px;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 基础重置 ---------- */
* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 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; }

::selection { background: var(--brand-100); color: var(--brand-700); }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-soft); }
::-webkit-scrollbar-thumb { background: #c8d1e0; border-radius: 8px; border: 2px solid var(--bg-soft); }
::-webkit-scrollbar-thumb:hover { background: #a9b3c4; }

/* ---------- 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 96px 0; position: relative; }
.section--soft { background: var(--bg-soft); }
.section--tight { padding: 72px 0; }
.section--dark { background: var(--bg-dark); color: #fff; }

.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-head--left { margin-left: 0; text-align: left; }
.section-head h2 {
  font-size: clamp(26px, 3.4vw, 40px);
  margin-bottom: 16px;
}
.section-head p {
  color: var(--ink-2);
  font-size: 17px;
}
.section--dark .section-head p { color: rgba(255, 255, 255, .7); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--brand);
  background: var(--brand-50);
  border: 1px solid var(--brand-100);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand);
}
.section--dark .eyebrow {
  color: #8fb4ff;
  background: rgba(21, 84, 240, .16);
  border-color: rgba(21, 84, 240, .34);
}
.section--dark .eyebrow::before { background: #8fb4ff; }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 26px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: transform .18s var(--ease), box-shadow .22s var(--ease),
              background-color .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}
.btn:active { transform: translateY(1px) scale(.99); }

.btn--primary {
  background: linear-gradient(135deg, var(--brand) 0%, #2d6bff 100%);
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(21, 84, 240, .36);
}

.btn--ghost {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-xs);
}
.btn--ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn--light {
  background: rgba(255, 255, 255, .1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .24);
  backdrop-filter: blur(8px);
}
.btn--light:hover { background: rgba(255, 255, 255, .18); transform: translateY(-2px); }

.btn--sm { height: 40px; padding: 0 18px; font-size: 14px; }
.btn--block { width: 100%; }
.btn .arrow { transition: transform .22s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- 头部导航 ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0);
  transition: background-color .28s var(--ease), box-shadow .28s var(--ease),
              border-color .28s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.is-scrolled {
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom-color: var(--line);
  box-shadow: 0 1px 20px rgba(10, 22, 51, .06);
}

/* 透明状态（页面顶部、悬浮于深色 Hero 上）：文字反白，滚动后恢复深色 */
.header:not(.is-scrolled) .logo { color: #fff; }
.header:not(.is-scrolled) .logo__text small { color: rgba(255, 255, 255, .55); }
.header:not(.is-scrolled) .nav__link { color: rgba(255, 255, 255, .8); }
.header:not(.is-scrolled) .nav__link:hover { color: #fff; background: rgba(255, 255, 255, .1); }
.header:not(.is-scrolled) .nav__link.is-active { color: #fff; }
.header:not(.is-scrolled) .nav__link.is-active::after { background: #fff; }
.header:not(.is-scrolled) .header__phone { color: rgba(255, 255, 255, .85); }
.header:not(.is-scrolled) .header__phone:hover { color: #fff; }
.header:not(.is-scrolled) .burger span { background: #fff; }
.header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  width: 100%;
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.02em;
  flex-shrink: 0;
  transition: color .28s var(--ease);
}
.logo__mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand) 0%, #4a86ff 100%);
  display: grid;
  place-items: center;
  box-shadow: 0 6px 16px rgba(21, 84, 240, .32);
  flex-shrink: 0;
}
.logo__mark svg { width: 19px; height: 19px; }
.logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.logo__text small {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--ink-3);
  text-transform: uppercase;
  transition: color .28s var(--ease);
}

/* 导航菜单 */
.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav__link {
  position: relative;
  display: inline-block;
  padding: 9px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  border-radius: 8px;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}
.nav__link:hover { color: var(--ink); background: var(--bg-soft); }
.nav__link.is-active { color: var(--brand); font-weight: 600; }
.nav__link.is-active::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand);
}

/* 下拉 */
.nav__item { position: relative; }
.nav__caret {
  display: inline-block;
  width: 8px; height: 8px;
  margin-left: 5px;
  border-right: 1.6px solid currentColor;
  border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform .22s var(--ease);
}
.nav__item:hover .nav__caret { transform: rotate(225deg) translate(-1px, -1px); }

.dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 260px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
}
.nav__item:hover .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown__link {
  display: flex;
  gap: 12px;
  padding: 11px 12px;
  border-radius: 9px;
  transition: background-color .18s var(--ease);
}
.dropdown__link:hover { background: var(--brand-50); }
.dropdown__ico {
  flex-shrink: 0;
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--brand-50);
  color: var(--brand);
  display: grid;
  place-items: center;
}
.dropdown__link:hover .dropdown__ico { background: #fff; }
.dropdown__ico svg { width: 17px; height: 17px; }
.dropdown__t { display: block; font-size: 14.5px; font-weight: 600; color: var(--ink); }
.dropdown__d { display: block; margin-top: 4px; font-size: 12.5px; color: var(--ink-3); line-height: 1.5; }

.header__cta { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.header__phone {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-2);
  transition: color .2s;
}
.header__phone:hover { color: var(--brand); }
.header__phone svg { width: 16px; height: 16px; }

/* 汉堡按钮 */
.burger {
  display: none;
  width: 44px; height: 44px;
  margin-left: auto;
  border-radius: 10px;
  place-items: center;
  transition: background-color .2s;
}
.burger:hover { background: var(--bg-soft); }
.burger span {
  display: block;
  width: 20px; height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform .28s var(--ease), opacity .2s, background-color .28s var(--ease);
}
.burger span + span { margin-top: 5px; }
.burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端抽屉 */
.mobile-nav {
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  bottom: 0;
  z-index: 99;
  background: #fff;
  padding: 20px 24px 40px;
  overflow-y: auto;
  transform: translateY(-12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .26s var(--ease), transform .26s var(--ease), visibility .26s;
}
.mobile-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-nav__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 4px;
  font-size: 16.5px;
  font-weight: 600;
  border-bottom: 1px solid var(--line-soft);
}
.mobile-nav__link.is-active { color: var(--brand); }
.mobile-nav__sub { padding: 6px 0 10px 4px; border-bottom: 1px solid var(--line-soft); }
.mobile-nav__sub a {
  display: block;
  padding: 9px 0 9px 14px;
  font-size: 14.5px;
  color: var(--ink-2);
  border-left: 2px solid var(--line);
}
.mobile-nav__sub a:hover { color: var(--brand); border-left-color: var(--brand); }
.mobile-nav .btn { margin-top: 24px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 84px) 0 100px;
  background:
    radial-gradient(1000px 520px at 78% -10%, rgba(45, 107, 255, .38) 0%, rgba(45, 107, 255, 0) 60%),
    radial-gradient(760px 460px at 6% 8%, rgba(0, 192, 139, .2) 0%, rgba(0, 192, 139, 0) 62%),
    linear-gradient(160deg, #051024 0%, #071a3d 48%, #0b2a63 100%);
  color: #fff;
  overflow: hidden;
}
/* 网格纹理 */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 78%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 64px;
  align-items: center;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 15px 7px 9px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .16);
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, .86);
  margin-bottom: 26px;
  backdrop-filter: blur(8px);
}
.hero__badge b {
  background: rgba(0, 192, 139, .2);
  color: #5ce6bd;
  font-size: 11.5px;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
  letter-spacing: .02em;
}
.hero h1 {
  font-size: clamp(32px, 4.6vw, 56px);
  line-height: 1.16;
  letter-spacing: -.025em;
  margin-bottom: 22px;
}
.hero h1 .hl {
  background: linear-gradient(100deg, #7aa9ff 0%, #4ce0b3 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__desc {
  font-size: 17.5px;
  line-height: 1.75;
  color: rgba(255, 255, 255, .76);
  max-width: 560px;
  margin-bottom: 36px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 42px; }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  max-width: 560px;
}
.hero__stat b {
  display: block;
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.1;
  color: #fff;
}
.hero__stat b .unit { font-size: .58em; font-weight: 600; margin-left: 2px; color: rgba(255,255,255,.8); }
.hero__stat span {
  display: block;
  margin-top: 7px;
  font-size: 13px;
  color: rgba(255, 255, 255, .58);
}

/* Hero 右侧：交易看板 */
.hero__visual { position: relative; }
.panel {
  position: relative;
  background: linear-gradient(165deg, rgba(255, 255, 255, .14) 0%, rgba(255, 255, 255, .04) 100%);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  box-shadow:
    0 30px 70px rgba(0, 0, 0, .42),
    inset 0 1px 0 rgba(255, 255, 255, .2);
}
.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.panel__title { font-size: 14px; font-weight: 600; color: rgba(255, 255, 255, .92); }
.panel__live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  font-weight: 600;
  color: #5ce6bd;
  background: rgba(0, 192, 139, .14);
  border: 1px solid rgba(0, 192, 139, .3);
  padding: 3px 10px;
  border-radius: 999px;
}
.panel__live i {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #22d39a;
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 211, 154, .7); }
  70% { box-shadow: 0 0 0 7px rgba(34, 211, 154, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 211, 154, 0); }
}

.panel__amount {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.15;
  background: linear-gradient(92deg, #ffffff 30%, #a9c4ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.panel__amount small { font-size: 14px; font-weight: 500; color: rgba(255, 255, 255, .55); margin-left: 6px; }
.panel__delta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 8px;
  font-size: 12.5px;
  font-weight: 600;
  color: #5ce6bd;
}
.panel__chart { margin: 18px 0 6px; }
.panel__chart svg { width: 100%; height: 92px; overflow: visible; }

.panel__rows { margin-top: 18px; display: grid; gap: 10px; }
.panel__row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 13px;
  border-radius: 11px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .1);
}
.panel__row-ico {
  width: 30px; height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}
.panel__row-name { font-size: 13px; color: rgba(255, 255, 255, .82); font-weight: 500; }
.panel__row-sub { font-size: 11px; color: rgba(255, 255, 255, .45); }
.panel__row-val {
  margin-left: auto;
  font-size: 13.5px;
  font-weight: 700;
  color: #fff;
}
.panel__bar {
  height: 4px;
  border-radius: 4px;
  background: rgba(255, 255, 255, .14);
  overflow: hidden;
  margin-top: 6px;
}
.panel__bar i {
  display: block;
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, #3d7bff, #4ce0b3);
}

/* 浮动小卡片：深色玻璃风，与看板统一 */
.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 13px;
  background: linear-gradient(160deg, rgba(17, 34, 76, .88) 0%, rgba(10, 22, 52, .82) 100%);
  border: 1px solid rgba(255, 255, 255, .18);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow:
    0 18px 44px rgba(0, 0, 0, .4),
    inset 0 1px 0 rgba(255, 255, 255, .12);
  animation: floaty 5.5s ease-in-out infinite;
}
.float-card--tl { top: -22px; left: -30px; }
.float-card--br { bottom: -26px; right: -22px; animation-delay: -2.6s; }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-11px); }
}
.float-card__ico {
  width: 34px; height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.float-card__ico svg { width: 17px; height: 17px; }
.float-card b { display: block; font-size: 14px; color: #fff; line-height: 1.25; }
.float-card span { font-size: 11.5px; color: rgba(255, 255, 255, .55); }

/* ---------- 客户 / 通道 合作条 ---------- */
.partners { padding: 44px 0 8px; border-top: 1px solid var(--line-soft); }
.partners__label {
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--ink-4);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.partners__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px 18px;
}
.partner {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-2);
  box-shadow: var(--shadow-xs);
  transition: transform .2s var(--ease), box-shadow .24s var(--ease),
              border-color .24s var(--ease), color .24s var(--ease);
}
.partner:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
  border-color: var(--brand-100);
  color: var(--ink);
}
.partner__dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ---------- 卡片 ---------- */
.card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px 28px;
  transition: transform .26s var(--ease), box-shadow .26s var(--ease),
              border-color .26s var(--ease);
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .34s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--brand-100);
}
.card:hover::after { transform: scaleX(1); }

.card__ico {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  background: var(--brand-50);
  color: var(--brand);
  transition: transform .26s var(--ease);
}
.card:hover .card__ico { transform: scale(1.06) rotate(-3deg); }
.card__ico svg { width: 25px; height: 25px; }
.card h3 { font-size: 18.5px; margin-bottom: 10px; }
.card p { color: var(--ink-2); font-size: 14.8px; line-height: 1.75; }
.card__list { margin-top: 18px; display: grid; gap: 9px; }
.card__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--ink-2);
}
.card__list li::before {
  content: "";
  position: absolute;
  left: 2px; top: 8px;
  width: 12px; height: 7px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

/* 卡片配色变体 */
.card--green .card__ico { background: var(--accent-50); color: #00a377; }
.card--orange .card__ico { background: #fff2e8; color: #f0701f; }
.card--purple .card__ico { background: #f2efff; color: #6b4bf0; }
.card--cyan .card__ico { background: #e6f7ff; color: #0a7fc4; }
.card--pink .card__ico { background: #ffeff5; color: #d6337a; }

/* ---------- 架构图 ---------- */
.arch {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 34px 28px;
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
}
.arch svg { width: 100%; min-width: 720px; height: auto; }
.arch__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-top: 26px;
  font-size: 13px;
  color: var(--ink-2);
}
.arch__legend span { display: inline-flex; align-items: center; gap: 7px; }
.arch__legend i { width: 11px; height: 11px; border-radius: 3px; display: block; }

/* ---------- 场景 Tab ---------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
}
.tab {
  padding: 11px 22px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line);
  transition: all .22s var(--ease);
}
.tab:hover { border-color: var(--brand-100); color: var(--brand); }
.tab.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeUp .4s var(--ease); }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.scene {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.scene h3 { font-size: clamp(21px, 2.4vw, 28px); margin-bottom: 14px; }
.scene > div > p { color: var(--ink-2); font-size: 15.5px; line-height: 1.8; margin-bottom: 22px; }
.scene__points { display: grid; gap: 14px; }
.scene__point {
  display: flex;
  gap: 13px;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .22s, box-shadow .22s;
}
.scene__point:hover { border-color: var(--brand-100); box-shadow: var(--shadow-xs); }
.scene__point-ico {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 8px;
  background: var(--brand-50);
  color: var(--brand);
  display: grid;
  place-items: center;
}
.scene__point-ico svg { width: 15px; height: 15px; }
.scene__point b { display: block; font-size: 14.5px; margin-bottom: 3px; }
.scene__point span { font-size: 13.5px; color: var(--ink-3); line-height: 1.6; }

/* 场景可视化 */
.scene__visual {
  position: relative;
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, #f3f7ff 0%, #e8f1ff 100%);
  border: 1px solid var(--brand-100);
  padding: 30px;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}
.flow-step {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 15px 17px;
  box-shadow: var(--shadow-xs);
  position: relative;
}
.flow-step__no {
  width: 28px; height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--brand), #3d7bff);
  color: #fff;
  font-size: 12.5px;
  font-weight: 700;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.flow-step__t { font-size: 14px; font-weight: 600; }
.flow-step__d { font-size: 12px; color: var(--ink-3); }
.flow-step__badge {
  margin-left: auto;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--accent-50);
  color: #00a377;
  white-space: nowrap;
}

/* ---------- 优势 / 数据 ---------- */
.stat-card {
  text-align: center;
  padding: 34px 20px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .055);
  border: 1px solid rgba(255, 255, 255, .12);
  transition: transform .26s var(--ease), background-color .26s var(--ease);
}
.stat-card:hover { transform: translateY(-5px); background: rgba(255, 255, 255, .09); }
.stat-card b {
  display: block;
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1.1;
  background: linear-gradient(120deg, #fff 20%, #7aa9ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-card b .unit { font-size: .5em; -webkit-text-fill-color: rgba(255,255,255,.75); }
.stat-card span { display: block; margin-top: 10px; font-size: 14px; color: rgba(255, 255, 255, .62); }

.feature {
  display: flex;
  gap: 15px;
  padding: 22px;
  border-radius: var(--radius);
  transition: background-color .24s var(--ease);
}
.feature:hover { background: #fff; box-shadow: var(--shadow-xs); }
.feature__ico {
  flex-shrink: 0;
  width: 40px; height: 40px;
  border-radius: 11px;
  background: var(--brand-50);
  color: var(--brand);
  display: grid;
  place-items: center;
}
.feature__ico svg { width: 19px; height: 19px; }
.feature h4 { font-size: 15.5px; margin-bottom: 6px; }
.feature p { font-size: 14px; color: var(--ink-2); line-height: 1.7; }

/* ---------- 接入流程 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  position: relative;
}
.step {
  position: relative;
  padding: 30px 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform .26s var(--ease), box-shadow .26s var(--ease);
}
.step:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.step__no {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -.04em;
  line-height: 1;
  background: linear-gradient(160deg, var(--brand-100) 0%, var(--brand) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}
.step h4 { font-size: 16.5px; margin-bottom: 9px; }
.step p { font-size: 14px; color: var(--ink-2); line-height: 1.7; }
.step__tag {
  display: inline-block;
  margin-top: 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand);
  background: var(--brand-50);
  padding: 4px 11px;
  border-radius: 999px;
}

/* ---------- FAQ ---------- */
.faq { max-width: 880px; margin: 0 auto; display: grid; gap: 12px; }
.faq__item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.faq__item.is-open { border-color: var(--brand-100); box-shadow: var(--shadow-sm); }
.faq__q {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.faq__q:hover { color: var(--brand); }
.faq__q span { flex: 1; }
.faq__sign {
  position: relative;
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--bg-soft);
  transition: background-color .24s var(--ease), transform .3s var(--ease);
}
.faq__sign::before,
.faq__sign::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 9px; height: 2px;
  border-radius: 2px;
  background: var(--ink-2);
  transform: translate(-50%, -50%);
  transition: transform .3s var(--ease), background-color .24s;
}
.faq__sign::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq__item.is-open .faq__sign { background: var(--brand); transform: rotate(180deg); }
.faq__item.is-open .faq__sign::before,
.faq__item.is-open .faq__sign::after { background: #fff; }
.faq__item.is-open .faq__sign::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .36s var(--ease);
}
.faq__a-inner {
  padding: 0 24px 22px 62px;
  font-size: 14.8px;
  color: var(--ink-2);
  line-height: 1.82;
}

/* ---------- CTA ---------- */
.cta {
  position: relative;
  border-radius: var(--radius-xl);
  padding: 60px 56px;
  background:
    radial-gradient(700px 340px at 88% 0%, rgba(45, 107, 255, .5) 0%, rgba(45, 107, 255, 0) 62%),
    linear-gradient(140deg, #061229 0%, #0a2050 60%, #113a86 100%);
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 70% 100% at 100% 0%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 100% 0%, #000, transparent 70%);
}
.cta__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
}
.cta h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 14px; }
.cta p { color: rgba(255, 255, 255, .74); font-size: 16px; max-width: 520px; }
.cta__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 联系表单 ---------- */
.form-wrap {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 56px;
}
.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 38px 34px;
  box-shadow: var(--shadow);
}
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: 8px;
}
.field label .req { color: var(--danger); margin-left: 3px; }
.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--ink);
  font-size: 15px;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease),
              background-color .2s var(--ease);
  outline: none;
}
.field textarea { min-height: 116px; resize: vertical; line-height: 1.7; }
.field input:focus,
.field textarea:focus,
.field select:focus {
  background: #fff;
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(21, 84, 240, .11);
}
.field input::placeholder,
.field textarea::placeholder { color: var(--ink-4); }
.field.is-error input,
.field.is-error textarea { border-color: var(--danger); background: #fff6f5; }
.field__err {
  display: none;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--danger);
}
.field.is-error .field__err { display: block; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-consent {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.6;
  margin: 6px 0 22px;
}
.form-consent input { width: 16px; height: 16px; margin-top: 3px; accent-color: var(--brand); flex-shrink: 0; }
.form-note { margin-top: 16px; font-size: 12.5px; color: var(--ink-4); text-align: center; }

/* 联系方式列表 */
.contact-list { display: grid; gap: 8px; margin-top: 34px; }
.contact-item {
  display: flex;
  gap: 15px;
  padding: 18px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  transition: border-color .22s, box-shadow .22s, transform .22s var(--ease);
}
.contact-item:hover { border-color: var(--brand-100); box-shadow: var(--shadow-xs); transform: translateX(3px); }
.contact-item__ico {
  flex-shrink: 0;
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--brand-50);
  color: var(--brand);
  display: grid;
  place-items: center;
}
.contact-item__ico svg { width: 18px; height: 18px; }
.contact-item b { display: block; font-size: 14.5px; margin-bottom: 3px; }
.contact-item span { font-size: 13.5px; color: var(--ink-2); line-height: 1.6; }
.contact-item a { color: var(--brand); font-weight: 600; }
.contact-item a:hover { text-decoration: underline; }

/* ---------- 页头（内页） ---------- */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 70px) 0 66px;
  background:
    radial-gradient(760px 380px at 82% -16%, rgba(45, 107, 255, .3) 0%, rgba(45, 107, 255, 0) 62%),
    linear-gradient(160deg, #051024 0%, #08193a 60%, #0b2352 100%);
  color: #fff;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 86% 100% at 50% 0%, #000 20%, transparent 76%);
  -webkit-mask-image: radial-gradient(ellipse 86% 100% at 50% 0%, #000 20%, transparent 76%);
}
.page-hero__inner { position: relative; max-width: 780px; }
.page-hero h1 {
  font-size: clamp(28px, 4vw, 46px);
  margin-bottom: 18px;
  letter-spacing: -.025em;
}
.page-hero p {
  font-size: 17px;
  color: rgba(255, 255, 255, .72);
  line-height: 1.75;
  max-width: 660px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  color: rgba(255, 255, 255, .5);
  margin-bottom: 20px;
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-style: normal; opacity: .5; }

/* ---------- 关于我们 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-grid h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 20px; }
.about-grid p { color: var(--ink-2); font-size: 15.5px; line-height: 1.85; margin-bottom: 16px; }

/* 公司简介：导语 + 亮点数据卡 */
.about-grid .lead {
  font-size: 16.5px;
  font-weight: 500;
  color: var(--ink);
  padding-left: 16px;
  border-left: 3px solid var(--brand);
  margin-bottom: 20px;
  line-height: 1.8;
}
.about-grid .lead b { color: var(--brand); font-weight: 700; }

.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.about-stat {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px 20px;
  overflow: hidden;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.about-stat::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--brand), var(--accent));
}
.about-stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--brand-100);
}
.about-stat b { display: block; font-size: 32px; letter-spacing: -.02em; line-height: 1.1; }
.about-stat b small { font-size: .55em; font-weight: 600; color: var(--ink-3); }
.about-stat > span { display: block; margin-top: 8px; font-size: 13.5px; color: var(--ink-2); }

.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 8px; bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--brand), var(--accent));
  border-radius: 2px;
  opacity: .28;
}
.tl-item { position: relative; padding-bottom: 32px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -30px; top: 5px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--brand);
  box-shadow: 0 0 0 4px rgba(21, 84, 240, .1);
}
.tl-item__year {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--brand);
  background: var(--brand-50);
  padding: 3px 11px;
  border-radius: 999px;
  margin-bottom: 9px;
  letter-spacing: .02em;
}
.tl-item h4 { font-size: 16.5px; margin-bottom: 7px; }
.tl-item p { font-size: 14.2px; color: var(--ink-2); line-height: 1.75; }

.value-card {
  padding: 28px 26px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform .26s var(--ease), box-shadow .26s var(--ease), border-color .26s;
}
.value-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: var(--brand-100); }
.value-card__no {
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: .1em;
  margin-bottom: 14px;
}
.value-card h4 { font-size: 17px; margin-bottom: 10px; }
.value-card p { font-size: 14.2px; color: var(--ink-2); line-height: 1.75; }

.team-card {
  text-align: center;
  padding: 32px 22px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform .26s var(--ease), box-shadow .26s var(--ease);
}
.team-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.team-card__avatar {
  width: 62px; height: 62px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), #4a86ff);
}
.team-card h4 { font-size: 16px; margin-bottom: 4px; }
.team-card .role { font-size: 13px; color: var(--brand); font-weight: 600; margin-bottom: 10px; }
.team-card p { font-size: 13.5px; color: var(--ink-3); line-height: 1.7; }

.qual-list { display: grid; gap: 14px; }
.qual-item {
  display: flex;
  gap: 15px;
  align-items: flex-start;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.qual-item__ico {
  flex-shrink: 0;
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--accent-50);
  color: #00a377;
  display: grid;
  place-items: center;
}
.qual-item__ico svg { width: 18px; height: 18px; }
.qual-item b { display: block; font-size: 14.5px; margin-bottom: 4px; }
.qual-item span { font-size: 13.5px; color: var(--ink-2); line-height: 1.65; }

/* ---------- 产品详情 ---------- */
.product-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.product-block--reverse .product-block__visual { order: -1; }
.product-block__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}
.chip {
  font-size: 12.5px;
  font-weight: 600;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--brand-50);
  color: var(--brand);
  border: 1px solid var(--brand-100);
}
.product-block h3 { font-size: clamp(21px, 2.6vw, 30px); margin-bottom: 14px; }
.product-block > div > p { color: var(--ink-2); font-size: 15.5px; line-height: 1.82; margin-bottom: 22px; }
.product-block__visual {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(155deg, #f7faff 0%, #eef4ff 100%);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}
.mock-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 15px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 11px;
  font-size: 13.5px;
  box-shadow: var(--shadow-xs);
}
.mock-row + .mock-row { margin-top: 10px; }
.mock-row__k { color: var(--ink-3); font-size: 12.5px; }
.mock-row__v { margin-left: auto; font-weight: 700; color: var(--ink); }
.mock-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.mock-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.mock-head b { font-size: 14.5px; }
.mock-head span {
  font-size: 11.5px;
  font-weight: 600;
  color: #00a377;
  background: var(--accent-50);
  padding: 3px 10px;
  border-radius: 999px;
}

/* 规格表 */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 14.5px;
}
.spec-table th,
.spec-table td {
  padding: 15px 20px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
}
.spec-table th {
  background: var(--bg-soft);
  font-weight: 600;
  color: var(--ink);
  font-size: 14px;
  white-space: nowrap;
}
.spec-table td { color: var(--ink-2); }
.spec-table tr:last-child td { border-bottom: none; }
.spec-table tbody tr:hover { background: #fbfcff; }

/* ---------- 页脚 ---------- */
.footer {
  background: #050f22;
  color: rgba(255, 255, 255, .62);
  padding: 68px 0 0;
  font-size: 14px;
}
.footer__top {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 48px;
  padding-bottom: 52px;
}
.footer .logo { color: #fff; margin-bottom: 18px; }
.footer .logo__text small { color: rgba(255, 255, 255, .4); }
.footer__about { max-width: 320px; line-height: 1.8; font-size: 13.8px; }
.footer__col h5 {
  color: #fff;
  font-size: 14.5px;
  font-weight: 600;
  margin-bottom: 20px;
}
.footer__col ul { display: grid; gap: 12px; }
.footer__col a {
  font-size: 13.8px;
  color: rgba(255, 255, 255, .6);
  transition: color .2s, padding-left .2s;
}
.footer__col a:hover { color: #fff; padding-left: 3px; }

.footer__contact { display: grid; gap: 14px; margin-top: 22px; }
.footer__contact div { display: flex; gap: 10px; align-items: flex-start; font-size: 13.8px; }
.footer__contact svg { width: 15px; height: 15px; flex-shrink: 0; margin-top: 4px; opacity: .6; }

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, .46);
}
.footer__bottom a { color: rgba(255, 255, 255, .6); }
.footer__bottom a:hover { color: #fff; }
.footer__legal { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; }

/* ---------- 返回顶部 / 提示 ---------- */
.to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 90;
  width: 46px; height: 46px;
  border-radius: 13px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .26s var(--ease), transform .26s var(--ease), visibility .26s;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { color: var(--brand); border-color: var(--brand); }
.to-top svg { width: 19px; height: 19px; }

.toast {
  position: fixed;
  top: calc(var(--header-h) + 18px);
  left: 50%;
  z-index: 200;
  transform: translateX(-50%) translateY(-16px);
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 14px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  font-size: 14.5px;
  font-weight: 500;
  opacity: 0;
  visibility: hidden;
  transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s;
  max-width: calc(100vw - 40px);
}
.toast.is-show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.toast__ico {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--accent-50);
  color: #00a377;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.toast__ico svg { width: 12px; height: 12px; }
.toast.is-error .toast__ico { background: #fff0ef; color: var(--danger); }

/* ---------- 滚动入场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .62s var(--ease), transform .62s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }
.reveal[data-delay="5"] { transition-delay: .4s; }
.reveal[data-delay="6"] { transition-delay: .48s; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav, .header__phone { display: none; }
  .burger { display: grid; }
  .header__cta { margin-left: 0; }
  .header__cta .btn { display: none; }
  .hero__inner { grid-template-columns: 1fr; gap: 52px; }
  .hero__visual { max-width: 520px; }
  .float-card--tl { left: 0; }
  .float-card--br { right: 0; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .cta__inner { grid-template-columns: 1fr; }
  .product-block,
  .scene,
  .about-grid,
  .form-wrap { grid-template-columns: 1fr; gap: 40px; }
  .product-block--reverse .product-block__visual { order: 0; }
}

@media (max-width: 720px) {
  :root { --header-h: 64px; }
  .section { padding: 68px 0; }
  .container { padding: 0 18px; }
  .hero { padding: calc(var(--header-h) + 52px) 0 68px; }
  .hero__stats { grid-template-columns: 1fr 1fr; gap: 22px 8px; }
  .hero__actions .btn { flex: 1; min-width: 150px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .cta { padding: 40px 26px; border-radius: var(--radius-lg); }
  .cta__actions { flex-direction: column; }
  .cta__actions .btn { width: 100%; }
  .form-card { padding: 28px 22px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .faq__a-inner { padding-left: 24px; }
  .footer { padding-top: 52px; }
  .footer__top { grid-template-columns: 1fr; gap: 34px; padding-bottom: 38px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .to-top { right: 16px; bottom: 16px; width: 42px; height: 42px; }
  .section-head { margin-bottom: 40px; }
  .float-card { padding: 10px 13px; }
  .float-card--tl { top: -16px; }
  .float-card--br { bottom: -18px; }
  .arch { padding: 20px 16px; border-radius: var(--radius); }
  .spec-table { font-size: 13.5px; }
  .spec-table th, .spec-table td { padding: 12px 14px; }
}

@media (max-width: 420px) {
  .hero__stats { grid-template-columns: 1fr; gap: 18px; }
  .mobile-nav__link { font-size: 15.5px; }
}

/* ---------- 打印 ---------- */
@media print {
  .header, .to-top, .footer, .cta, .hero__actions { display: none !important; }
  body { color: #000; }
  .section { padding: 20px 0; }
  .reveal { opacity: 1 !important; transform: none !important; }
}