/* =========================================================
   客钰来 · 官网首页样式
   蓝色系 / 现代 SaaS 风格
   结构：1.令牌  2.基础  3.通用组件  4.头部  5.首屏
        6.功能  7.行业  8.软硬  9.服务  10.资讯  11.CTA
        12.页脚  13.动效  14.响应式
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --blue-50:  #f0f6ff;
  --blue-100: #dfeaff;
  --blue-200: #c3d8ff;
  --blue-300: #98beff;
  --blue-400: #6a9bff;
  --blue-500: #3d7bfd;
  --blue-600: #1a5cf5;
  --blue-700: #1347cc;
  --blue-800: #12389e;
  --blue-900: #0d2a75;

  --ink:       #0b1a2e;
  --ink-2:     #22344c;
  --muted:     #5a6c85;
  --muted-2:   #8595a9;
  --line:      #e5ecf7;
  --line-2:    #d3e0f2;
  --bg:        #ffffff;
  --bg-soft:   #f5f9ff;
  --dark:      #071426;

  --radius-sm: 10px;
  --radius:    16px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 8px rgba(16, 42, 84, .05);
  --shadow:    0 12px 30px -14px rgba(16, 42, 84, .16);
  --shadow-lg: 0 30px 60px -28px rgba(16, 42, 84, .28);

  --nav-h: 76px;
  --container: 1200px;

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

/* ---------- 2. 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system,
               BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 { margin: 0; color: var(--ink); font-weight: 700; line-height: 1.3; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; border: 0; background: none; cursor: pointer; }
input { font: inherit; }

::selection { background: var(--blue-200); color: var(--ink); }

.svg-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.ic {
  width: 1.15em; height: 1.15em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: 0 0 auto;
}

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

/* ---------- 3. 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  white-space: nowrap;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease),
              background-color .22s var(--ease), color .22s var(--ease),
              border-color .22s var(--ease);
}
.btn .ic { width: 17px; height: 17px; transition: transform .22s var(--ease); }
.btn:hover .ic { transform: translateX(3px); }

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, #2f6fff 0%, var(--blue-700) 100%);
  box-shadow: 0 10px 22px -10px rgba(19, 71, 204, .75);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px -12px rgba(19, 71, 204, .85);
}

.btn-outline {
  color: var(--ink-2);
  background: #fff;
  border: 1px solid var(--line-2);
}
.btn-outline:hover {
  color: var(--blue-700);
  border-color: var(--blue-300);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-ghost { color: var(--ink-2); }
.btn-ghost:hover { color: var(--blue-700); background: var(--blue-50); }

.btn-white {
  color: var(--blue-700);
  background: #fff;
  box-shadow: 0 10px 24px -12px rgba(2, 12, 40, .5);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -14px rgba(2, 12, 40, .6); }

.btn-lg { height: 52px; padding: 0 26px; font-size: 16px; border-radius: 12px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--blue-700);
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
}
.eyebrow .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(61, 123, 253, .18);
}
.eyebrow--light {
  color: #cfe0ff;
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .14);
}

.section { padding: 96px 0; position: relative; }
.section-soft {
  background:
    radial-gradient(1000px 380px at 50% 0%, #eaf3ff 0%, transparent 70%),
    linear-gradient(180deg, #f6faff 0%, #eef5ff 100%);
  border-top: 1px solid #eaf1fb;
  border-bottom: 1px solid #eaf1fb;
}

.section-head { max-width: 760px; margin: 0 auto 52px; text-align: center; }
.section-head .h2 { margin-top: 18px; }
.h2 {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.28;
}
.section-desc {
  margin-top: 16px;
  font-size: 16.5px;
  color: var(--muted);
  line-height: 1.8;
}
.section-head--row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  max-width: none;
  text-align: left;
}
.section-head--row .h2 { margin-top: 16px; }
.section-head--light .h2 { color: #fff; }
.section-head--light .section-desc { color: #a9c1e6; }

.check-list { display: grid; gap: 12px; margin-top: 24px; }
.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--ink-2);
}
.check-list .ic {
  width: 20px; height: 20px;
  margin-top: 3px;
  color: var(--blue-600);
  stroke-width: 2.4;
}

/* ---------- 4. 头部导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background-color .3s var(--ease), box-shadow .3s var(--ease),
              backdrop-filter .3s var(--ease), height .3s var(--ease);
}
.site-header.is-scrolled {
  height: 68px;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 1px 0 rgba(16, 42, 84, .07), 0 8px 24px -18px rgba(16, 42, 84, .3);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
}

.logo { display: inline-flex; align-items: center; gap: 10px; }
.logo-mark {
  width: 38px; height: 38px;
  color: var(--blue-600);
  transition: transform .3s var(--ease);
}
.logo:hover .logo-mark { transform: rotate(-6deg) scale(1.04); }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--ink);
}
.logo-text em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--muted-2);
}
.logo--light .logo-text strong { color: #fff; }
.logo--light .logo-text em { color: rgba(255, 255, 255, .5); }
.logo--light .logo-mark { color: #2f6fff; }

.main-nav { margin-left: auto; }
.main-nav > ul { display: flex; align-items: center; gap: 4px; }
.main-nav > ul > li > a {
  position: relative;
  display: block;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  transition: color .2s, background-color .2s;
}
.main-nav > ul > li > a::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--blue-600);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .28s var(--ease);
}
.main-nav > ul > li > a:hover { color: var(--blue-700); background: var(--blue-50); }
.main-nav > ul > li > a:hover::after { transform: scaleX(1); }

.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: 8px; }
.nav-tel {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-right: 6px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--blue-700);
  font-variant-numeric: tabular-nums;
}
.nav-tel .ic { width: 16px; height: 16px; }

.nav-actions-mobile { display: none; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  border-radius: 10px;
  color: var(--ink);
  border: 1px solid var(--line-2);
  background: #fff;
}
.nav-toggle .ic { width: 22px; height: 22px; }
.nav-toggle .ic-close { display: none; }
.nav-toggle.is-open .ic-menu { display: none; }
.nav-toggle.is-open .ic-close { display: block; }

/* ---------- 5. 首屏 ---------- */
.hero {
  position: relative;
  padding-top: calc(var(--nav-h) + 74px);
  padding-bottom: 0;
  overflow: visible;
}
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: -1;
  background:
    radial-gradient(900px 520px at 78% 8%, rgba(106, 155, 255, .22) 0%, transparent 62%),
    radial-gradient(760px 460px at 6% 0%, rgba(152, 190, 255, .18) 0%, transparent 58%),
    linear-gradient(180deg, #f7faff 0%, #ffffff 72%);
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .55;
}
.orb-1 {
  width: 460px; height: 460px;
  top: -140px; right: 6%;
  background: radial-gradient(circle, rgba(61, 123, 253, .5) 0%, rgba(61, 123, 253, 0) 68%);
}
.orb-2 {
  width: 380px; height: 380px;
  top: 120px; left: -120px;
  background: radial-gradient(circle, rgba(128, 176, 255, .42) 0%, rgba(128, 176, 255, 0) 70%);
}
.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26, 92, 245, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 92, 245, .055) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(880px 520px at 50% 24%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(880px 520px at 50% 24%, #000 0%, transparent 78%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.02fr 1fr;
  align-items: center;
  gap: 56px;
}

.hero-copy .eyebrow { animation: riseIn .7s var(--ease) both; }
.hero-copy h1 {
  margin: 22px 0 0;
  font-size: clamp(32px, 4.1vw, 54px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.025em;
  animation: riseIn .7s .08s var(--ease) both;
}
.hl {
  position: relative;
  display: inline-block;
  color: var(--blue-600);
  background: linear-gradient(96deg, var(--blue-600) 0%, #4f8bff 52%, #16b6d8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hl::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 2px;
  height: 10px;
  border-radius: 4px;
  background: linear-gradient(90deg, rgba(61, 123, 253, .22), rgba(22, 182, 216, .16));
  z-index: -1;
}
.hero-desc {
  max-width: 520px;
  margin-top: 22px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
  animation: riseIn .7s .16s var(--ease) both;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
  animation: riseIn .7s .24s var(--ease) both;
}
.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 26px;
  animation: riseIn .7s .3s var(--ease) both;
}
.hero-points li {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  color: var(--muted);
}
.hero-points .ic { width: 16px; height: 16px; color: var(--blue-600); stroke-width: 2.6; }

@keyframes riseIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}

/* --- 收银台界面模拟 --- */
.hero-visual {
  position: relative;
  animation: riseIn .9s .18s var(--ease) both;
}
.app-window {
  position: relative;
  border-radius: 18px;
  background: #fff;
  border: 1px solid #e8eefb;
  box-shadow:
    0 40px 80px -40px rgba(13, 42, 117, .38),
    0 10px 28px -16px rgba(13, 42, 117, .2);
  overflow: hidden;
}
.app-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 42px;
  padding: 0 14px;
  background: #fbfcff;
  border-bottom: 1px solid #eef3fb;
}
.app-bar .dots { display: inline-flex; gap: 5px; }
.app-bar .dots i {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #dde6f4;
}
.app-bar .dots i:nth-child(1) { background: #ff9f97; }
.app-bar .dots i:nth-child(2) { background: #ffd27d; }
.app-bar .dots i:nth-child(3) { background: #8bdcae; }
.app-title { font-size: 12.5px; font-weight: 600; color: var(--ink-2); }
.app-tag {
  margin-left: auto;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  color: #0f9d58;
  background: #e9f9f0;
}

.app-body {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) 196px;
  height: 336px;
}

.app-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 14px 0;
  background: #fbfcff;
  border-right: 1px solid #eef3fb;
}
.side-item {
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border-radius: 9px;
  color: #9aabc2;
}
.side-item .ic { width: 17px; height: 17px; }
.side-item.is-active {
  color: #fff;
  background: linear-gradient(135deg, #2f6fff, var(--blue-700));
  box-shadow: 0 6px 14px -6px rgba(26, 92, 245, .8);
}

.app-main { padding: 14px; min-width: 0; }
.app-search {
  height: 32px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  border-radius: 8px;
  font-size: 11.5px;
  color: #a4b3c7;
  background: #f5f8fe;
  border: 1px solid #eaf0fa;
}
.app-goods {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 12px;
}
.goods-item {
  padding: 10px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid #eef3fb;
  transition: border-color .2s, box-shadow .2s;
}
.goods-item.is-sel {
  border-color: var(--blue-400);
  box-shadow: 0 0 0 3px rgba(61, 123, 253, .12);
}
.goods-thumb {
  display: grid;
  place-items: center;
  height: 44px;
  border-radius: 8px;
  margin-bottom: 8px;
}
.goods-thumb .ic { width: 18px; height: 18px; }
.goods-thumb.t1 { color: #2f8fd6; background: #e8f4fd; }
.goods-thumb.t2 { color: #d4741f; background: #fdf1e5; }
.goods-thumb.t3 { color: #7a5cd6; background: #f0ecfd; }
.goods-thumb.t4 { color: #1a9c6b; background: #e6f7f0; }
.goods-item b {
  display: block;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--ink-2);
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.goods-item em {
  display: block;
  font-style: normal;
  font-size: 11.5px;
  font-weight: 700;
  color: var(--blue-700);
  font-variant-numeric: tabular-nums;
}

.app-cart {
  display: flex;
  flex-direction: column;
  padding: 14px;
  background: #fbfcff;
  border-left: 1px solid #eef3fb;
}
.cart-member {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 12px;
  border-bottom: 1px dashed #e2eaf6;
}
.cart-member .avatar {
  display: grid;
  place-items: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #4f8bff, var(--blue-700));
}
.cart-member b { display: block; font-size: 12px; color: var(--ink); }
.cart-member em {
  display: block;
  font-style: normal;
  font-size: 10.5px;
  color: var(--muted-2);
}
.cart-list { display: grid; gap: 8px; margin: 12px 0; }
.cart-list li {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 11.5px;
  color: var(--ink-2);
}
.cart-list li b { font-weight: 600; font-variant-numeric: tabular-nums; }
.cart-list li b.minus { color: #1a9c6b; }
.cart-total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed #e2eaf6;
  font-size: 11.5px;
  color: var(--muted);
}
.cart-total strong {
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}
.cart-actions { display: grid; grid-template-columns: 1fr auto; gap: 6px; margin-top: 10px; }
.pay-btn {
  display: grid;
  place-items: center;
  height: 32px;
  border-radius: 8px;
  font-size: 11.5px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #2f6fff, var(--blue-700));
}
.pay-btn.ghost {
  padding: 0 10px;
  color: var(--ink-2);
  background: #fff;
  border: 1px solid #e2eaf6;
}

.float-card {
  position: absolute;
  padding: 12px 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(10px);
  border: 1px solid #e9eff9;
  box-shadow: 0 18px 40px -22px rgba(13, 42, 117, .4);
  animation: floatY 5s ease-in-out infinite;
}
.fc-1 { top: -36px; left: -36px; }
.fc-2 {
  right: -30px; bottom: 116px;
  display: flex;
  align-items: center;
  gap: 10px;
  animation-delay: -2.4s;
}
.fc-label { display: block; font-size: 11.5px; color: var(--muted-2); }
.float-card strong {
  display: block;
  font-size: 20px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
  line-height: 1.3;
}
.float-card strong em { font-style: normal; font-size: 12px; font-weight: 600; color: var(--muted); }
.fc-trend {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  font-weight: 700;
  color: #0f9d58;
}
.fc-trend .ic { width: 12px; height: 12px; transform: rotate(-45deg); stroke-width: 2.6; }
.fc-icon {
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border-radius: 10px;
  color: var(--blue-700);
  background: var(--blue-50);
}
.fc-icon .ic { width: 17px; height: 17px; }

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-9px); }
}

/* --- 首屏底部信任条 --- */
.trust-bar {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 84px;
  margin-bottom: -44px;
  padding: 22px 8px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid #eaf1fb;
  box-shadow: 0 26px 50px -34px rgba(13, 42, 117, .35);
}
.trust-bar li {
  position: relative;
  padding: 0 26px;
}
.trust-bar li + li::before {
  content: "";
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 1px;
  background: var(--line);
}
.trust-bar b {
  display: block;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}
.trust-bar span {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  color: var(--muted-2);
}

/* ---------- 6. 核心功能 ---------- */
#features { padding-top: 118px; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 24px 22px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease),
              border-color .28s var(--ease);
}
.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(160deg, rgba(61, 123, 253, .05), transparent 46%);
  opacity: 0;
  transition: opacity .28s var(--ease);
  pointer-events: none;
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--blue-200);
  box-shadow: 0 24px 44px -28px rgba(13, 42, 117, .35);
}
.feature-card:hover::before { opacity: 1; }

.f-icon {
  display: grid;
  place-items: center;
  width: 46px; height: 46px;
  border-radius: 13px;
  color: var(--blue-600);
  background: linear-gradient(150deg, var(--blue-50), #e8f1ff);
  border: 1px solid #e2ecfd;
  transition: transform .28s var(--ease), color .28s, background .28s;
}
.f-icon .ic { width: 22px; height: 22px; }
.feature-card:hover .f-icon {
  color: #fff;
  background: linear-gradient(140deg, #2f6fff, var(--blue-700));
  border-color: transparent;
  transform: translateY(-2px) scale(1.04);
}
.feature-card h3 {
  margin-top: 18px;
  font-size: 17px;
  font-weight: 700;
}
.feature-card p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.f-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--blue-700);
  opacity: .82;
  transition: gap .22s var(--ease), opacity .22s;
}
.f-more .ic { width: 15px; height: 15px; }
.f-more:hover { gap: 8px; opacity: 1; }

.feature-card--cta {
  justify-content: center;
  color: #fff;
  border: 0;
  background:
    radial-gradient(320px 200px at 100% 0%, rgba(255, 255, 255, .22), transparent 70%),
    linear-gradient(150deg, #2f6fff 0%, var(--blue-800) 100%);
  box-shadow: 0 22px 42px -26px rgba(13, 42, 117, .7);
}
.feature-card--cta h3 { color: #fff; font-size: 18px; }
.feature-card--cta p { color: rgba(255, 255, 255, .78); }
.feature-card--cta .btn { margin-top: 18px; align-self: flex-start; height: 40px; font-size: 14px; }
.feature-card--cta:hover { transform: translateY(-6px); }

/* ---------- 7. 行业方案 ---------- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.industry-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 24px 20px 20px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid #e7eefa;
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease),
              border-color .3s var(--ease), background .3s var(--ease);
}
.industry-card::after {
  content: "";
  position: absolute;
  right: -46px; top: -46px;
  width: 110px; height: 110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61, 123, 253, .14), transparent 68%);
  opacity: 0;
  transition: opacity .3s var(--ease), transform .5s var(--ease);
}
.industry-card:hover {
  transform: translateY(-6px);
  border-color: var(--blue-300);
  box-shadow: 0 26px 46px -30px rgba(13, 42, 117, .4);
}
.industry-card:hover::after { opacity: 1; transform: scale(1.5); }

.i-icon {
  display: grid;
  place-items: center;
  width: 44px; height: 44px;
  border-radius: 12px;
  color: var(--blue-700);
  background: linear-gradient(150deg, #eef5ff, #e2ecff);
  border: 1px solid #dce8fb;
  transition: color .3s, background .3s, transform .3s var(--ease);
}
.i-icon .ic { width: 21px; height: 21px; }
.industry-card:hover .i-icon {
  color: #fff;
  background: linear-gradient(140deg, #2f6fff, var(--blue-800));
  border-color: transparent;
  transform: scale(1.05);
}
.industry-card h3 {
  margin-top: 16px;
  font-size: 16.5px;
  font-weight: 700;
}
.i-tags {
  margin-top: 7px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted-2);
}
.i-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue-700);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .28s var(--ease), transform .28s var(--ease);
}
.i-link .ic { width: 14px; height: 14px; }
.industry-card:hover .i-link { opacity: 1; transform: none; }

/* ---------- 8. 软硬协同 ---------- */
.hw-tabs {
  display: inline-flex;
  gap: 4px;
  padding: 5px;
  margin: 0 auto 40px;
  border-radius: 999px;
  background: #f3f7fe;
  border: 1px solid #e8effa;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}
.hw-tab {
  padding: 9px 26px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--muted);
  transition: color .22s, background .22s, box-shadow .22s;
}
.hw-tab:hover { color: var(--blue-700); }
.hw-tab.is-active {
  color: #fff;
  background: linear-gradient(135deg, #2f6fff, var(--blue-700));
  box-shadow: 0 8px 18px -10px rgba(26, 92, 245, .9);
}

.hw-panel { display: none; }
.hw-panel.is-active { display: block; animation: fadeUp .45s var(--ease) both; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: none; }
}

.hw-panel {
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 44px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(700px 320px at 100% 0%, #eaf2ff 0%, transparent 66%),
    linear-gradient(180deg, #fbfdff, #f7fbff);
  border: 1px solid #e8f0fb;
}
.hw-panel.is-active { display: grid; }
.hw-copy h3 {
  font-size: clamp(21px, 2.2vw, 26px);
  font-weight: 800;
  letter-spacing: -.01em;
}
.hw-copy p {
  margin-top: 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

.hw-devices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.device-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 22px 12px 18px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid #e9f0fb;
  box-shadow: 0 12px 26px -22px rgba(13, 42, 117, .4);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease);
}
.device-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 22px 38px -26px rgba(13, 42, 117, .45);
}
.device-ico {
  display: grid;
  place-items: center;
  width: 52px; height: 52px;
  border-radius: 14px;
  color: var(--blue-600);
  background: linear-gradient(150deg, #eef5ff, #e3edff);
  border: 1px solid #dce8fb;
}
.device-ico .ic { width: 24px; height: 24px; }
.device-card b { margin-top: 14px; font-size: 14.5px; font-weight: 700; color: var(--ink); }
.device-card em {
  margin-top: 4px;
  font-style: normal;
  font-size: 12px;
  color: var(--muted-2);
  line-height: 1.5;
}

/* ---------- 9. 服务保障（深色区） ---------- */
.section-dark {
  color: #d7e3f7;
  background:
    radial-gradient(900px 420px at 80% 0%, rgba(47, 111, 255, .30), transparent 66%),
    radial-gradient(700px 400px at 4% 100%, rgba(22, 182, 216, .16), transparent 62%),
    linear-gradient(165deg, #071426 0%, #0a1f45 52%, #0d2a75 100%);
}
.section-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(900px 500px at 50% 0%, #000, transparent 82%);
  -webkit-mask-image: radial-gradient(900px 500px at 50% 0%, #000, transparent 82%);
  pointer-events: none;
}
.section-dark .container { position: relative; z-index: 1; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 60px;
  padding: 34px 10px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .09);
  backdrop-filter: blur(6px);
}
.stat-item { text-align: center; }
.stat-item strong {
  display: block;
  font-size: clamp(30px, 3.4vw, 42px);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, #ffffff 20%, #8fb6ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat-item span {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  color: #9db4d6;
}

.sla-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.sla-item {
  padding: 26px 22px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .08);
  transition: transform .3s var(--ease), background .3s, border-color .3s;
}
.sla-item:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, .075);
  border-color: rgba(143, 182, 255, .34);
}
.sla-ico {
  display: grid;
  place-items: center;
  width: 44px; height: 44px;
  border-radius: 12px;
  color: #a8c6ff;
  background: rgba(47, 111, 255, .18);
  border: 1px solid rgba(143, 182, 255, .22);
}
.sla-ico .ic { width: 21px; height: 21px; }
.sla-item h4 { margin-top: 16px; font-size: 16px; color: #fff; font-weight: 700; }
.sla-item p { margin-top: 8px; font-size: 13.5px; line-height: 1.75; color: #a2b8d8; }

/* ---------- 10. 资讯 ---------- */
.news-layout {
  display: grid;
  grid-template-columns: 1.06fr 1fr;
  gap: 28px;
  align-items: start;
}
.news-hero {
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.news-hero:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 50px -34px rgba(13, 42, 117, .4);
}
.news-cover {
  position: relative;
  height: 190px;
  background:
    radial-gradient(420px 200px at 82% 12%, rgba(106, 155, 255, .55), transparent 68%),
    linear-gradient(140deg, #13379f 0%, #2f6fff 62%, #16b6d8 100%);
  overflow: hidden;
}
.news-badge {
  position: absolute;
  top: 16px; left: 16px;
  z-index: 2;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, .19);
  border: 1px solid rgba(255, 255, 255, .3);
  backdrop-filter: blur(4px);
}
.cover-art { position: absolute; inset: 0; }
.cover-art span {
  position: absolute;
  border-radius: 12px;
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .22);
  backdrop-filter: blur(2px);
}
.cover-art span:nth-child(1) { width: 116px; height: 70px; left: 12%; bottom: 22%; }
.cover-art span:nth-child(2) { width: 84px; height: 110px; left: 34%; bottom: 14%; background: rgba(255, 255, 255, .24); }
.cover-art span:nth-child(3) { width: 136px; height: 62px; right: 10%; bottom: 28%; }

.news-body { padding: 24px 26px 26px; }
.news-body time { font-size: 12.5px; color: var(--muted-2); font-variant-numeric: tabular-nums; }
.news-body h3 {
  margin-top: 8px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.45;
}
.news-body p {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}
.news-body .f-more { margin-top: 14px; }

.news-list { display: grid; gap: 12px; }
.news-item {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas: "date tag" "title title";
  gap: 6px 14px;
  padding: 20px 22px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line);
  transition: transform .26s var(--ease), border-color .26s, box-shadow .26s;
}
.news-item:hover {
  transform: translateX(4px);
  border-color: var(--blue-200);
  box-shadow: 0 16px 30px -26px rgba(13, 42, 117, .45);
}
.news-item time { grid-area: date; font-size: 12.5px; color: var(--muted-2); font-variant-numeric: tabular-nums; }
.news-item h4 {
  grid-area: title;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-2);
}
.news-item:hover h4 { color: var(--blue-700); }
.news-tag {
  grid-area: tag;
  align-self: start;
  padding: 2px 9px;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--blue-700);
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
}

/* ---------- 11. CTA ---------- */
.cta-band {
  position: relative;
  padding: 0 0 96px;
  background: #fff;
}
.cta-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding: 56px 52px;
  border-radius: 28px;
  overflow: hidden;
  background:
    radial-gradient(620px 320px at 88% 6%, rgba(120, 190, 255, .38), transparent 66%),
    linear-gradient(135deg, #1247cc 0%, #1a5cf5 46%, #0b3bb0 100%);
  box-shadow: 0 40px 70px -44px rgba(13, 42, 117, .8);
}
.cta-bg { position: absolute; inset: 0; overflow: hidden; }
.orb-3 {
  width: 420px; height: 420px;
  right: -90px; top: -160px;
  background: radial-gradient(circle, rgba(255, 255, 255, .32), transparent 66%);
  opacity: .8;
}
.cta-copy h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 800;
  color: #fff;
  letter-spacing: -.02em;
}
.cta-copy p {
  margin-top: 14px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .82);
  max-width: 440px;
}
.cta-form { position: relative; }
.form-row { display: flex; gap: 10px; }
.form-row input {
  flex: 1;
  min-width: 0;
  height: 52px;
  padding: 0 18px;
  border-radius: 12px;
  font-size: 15px;
  color: var(--ink);
  background: rgba(255, 255, 255, .96);
  border: 1px solid rgba(255, 255, 255, .5);
  outline: none;
  transition: box-shadow .2s, border-color .2s;
}
.form-row input::placeholder { color: #94a3b8; }
.form-row input:focus {
  border-color: #fff;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, .22);
}
.form-row .btn { flex: 0 0 auto; }
.form-agree {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-size: 12.5px;
  color: rgba(255, 255, 255, .72);
  cursor: pointer;
}
.form-agree input {
  width: 15px; height: 15px;
  accent-color: #fff;
  cursor: pointer;
}
.form-tip {
  margin-top: 10px;
  font-size: 13px;
  min-height: 20px;
  color: #ffe08a;
  font-weight: 600;
}
.form-tip.is-ok { color: #b7f7d8; }
.cta-contact {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, .7);
}
.cta-contact a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 700;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.cta-contact .ic { width: 15px; height: 15px; }

/* ---------- 12. 页脚 ---------- */
.site-footer {
  padding: 64px 0 26px;
  color: #93a6c2;
  background:
    radial-gradient(700px 300px at 12% 0%, rgba(47, 111, 255, .16), transparent 68%),
    #071426;
  border-top: 1px solid rgba(255, 255, 255, .06);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 56px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-slogan {
  margin-top: 18px;
  max-width: 300px;
  font-size: 13.5px;
  line-height: 1.8;
  color: #8195b3;
}
.footer-contact { display: grid; gap: 10px; margin-top: 22px; }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: #a9bcd8;
}
.footer-contact .ic { width: 15px; height: 15px; color: #6b84a8; }
.footer-contact a:hover { color: #fff; }

.footer-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul { display: grid; gap: 10px; }
.footer-col a {
  font-size: 13.5px;
  color: #8ca0bd;
  transition: color .2s, padding-left .2s;
}
.footer-col a:hover { color: #fff; padding-left: 3px; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 22px;
  font-size: 12.5px;
  color: #6b81a0;
}
.footer-icp a:hover { color: #fff; }

.mobile-consult {
  display: none;
  position: fixed;
  right: 18px; bottom: 18px;
  z-index: 90;
  width: 50px; height: 50px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, #2f6fff, var(--blue-700));
  box-shadow: 0 14px 26px -12px rgba(26, 92, 245, .9);
}
.mobile-consult .ic { width: 22px; height: 22px; }

/* ---------- 13. 滚动动效 ---------- */
/* 用独立的 translate 属性做位移，避免与卡片 hover 的 transform 冲突 */
.reveal {
  opacity: 0;
  translate: 0 24px;
  transition: opacity .7s var(--ease), translate .7s var(--ease);
  will-change: opacity, translate;
}
.reveal.is-visible { opacity: 1; translate: none; }

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

/* ---------- 14. 响应式 ---------- */
@media (max-width: 1180px) {
  .hero-inner { gap: 40px; }
  .float-card { display: none; }
  .industry-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 1024px) {
  .main-nav > ul { gap: 0; }
  .main-nav > ul > li > a { padding: 8px 10px; font-size: 14.5px; }
  .nav-tel { display: none; }
  .section { padding: 80px 0; }

  .hero { padding-top: calc(var(--nav-h) + 56px); }
  .hero-inner { grid-template-columns: 1fr; gap: 56px; }
  .hero-copy { max-width: 640px; }
  .hero-desc { max-width: none; }
  .app-body { height: 320px; }

  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(3, 1fr); }
  .hw-panel { grid-template-columns: 1fr; gap: 34px; padding: 34px; }
  .sla-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-row { grid-template-columns: repeat(2, 1fr); gap: 28px 12px; }
  .news-layout { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; gap: 32px; padding: 44px 36px; }
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .trust-bar { grid-template-columns: repeat(2, 1fr); gap: 20px 0; }
  .trust-bar li:nth-child(3)::before { display: none; }
}

@media (max-width: 860px) {
  :root { --nav-h: 66px; }

  .nav-toggle { display: flex; }
  .nav-actions { display: none; }

  .main-nav {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    margin: 0;
    padding: 16px 24px 26px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px -28px rgba(13, 42, 117, .45);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .26s var(--ease), transform .26s var(--ease), visibility .26s;
  }
  .main-nav.is-open { opacity: 1; transform: none; visibility: visible; }
  .main-nav > ul { flex-direction: column; align-items: stretch; gap: 2px; }
  .main-nav > ul > li > a { padding: 12px 12px; font-size: 16px; border-radius: 10px; }
  .main-nav > ul > li > a::after { display: none; }
  .nav-actions-mobile { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
  .nav-actions-mobile .btn { width: 100%; }

  .section { padding: 68px 0; }
  #features { padding-top: 96px; }
  .section-head { margin-bottom: 36px; }
  .section-head--row { flex-direction: column; align-items: flex-start; }
  .section-desc { font-size: 15.5px; }

  .hero { padding-top: calc(var(--nav-h) + 40px); }
  .hero-copy h1 { font-size: clamp(28px, 7vw, 38px); }
  .hero-desc { font-size: 15.5px; }
  .hero-actions .btn { flex: 1 1 160px; }
  .trust-bar {
    margin-top: 56px;
    margin-bottom: -32px;
    padding: 18px 18px;
    gap: 16px 0;
  }
  .trust-bar li { padding: 0 8px; }
  .trust-bar li:nth-child(odd)::before { display: none; }
  .trust-bar b { font-size: 15px; }
  .trust-bar span { font-size: 12.5px; }

  .app-body { grid-template-columns: 46px minmax(0, 1fr) 168px; height: 300px; }
  .app-cart { padding: 12px; }
  .cart-total strong { font-size: 18px; }

  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .hw-devices { grid-template-columns: 1fr 1fr; }
  .device-card:last-child { display: none; }

  .cta-band { padding-bottom: 68px; }
  .cta-inner { padding: 34px 24px; border-radius: 22px; }
  .form-row { flex-direction: column; }
  .cta-contact { justify-content: flex-start; }

  .footer-nav { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; }

  .mobile-consult { display: flex; }
}

@media (max-width: 560px) {
  .container { padding: 0 18px; }

  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; flex: 0 0 auto; }
  .hero-points { gap: 6px 16px; }
  .hero-points li { font-size: 13px; }

  .app-body { grid-template-columns: 44px minmax(0, 1fr); height: 300px; }
  .app-cart { display: none; }
  .app-goods { grid-template-columns: 1fr 1fr; }

  .feature-grid { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .industry-card { padding: 18px 14px 16px; }
  .industry-card h3 { font-size: 15px; margin-top: 12px; }
  .i-tags { font-size: 11.5px; }
  .i-link { display: none; }
  .i-icon { width: 38px; height: 38px; border-radius: 10px; }
  .i-icon .ic { width: 18px; height: 18px; }

  .hw-tabs { width: 100%; justify-content: space-between; }
  .hw-tab { padding: 8px 12px; font-size: 13.5px; }
  .hw-panel { padding: 24px 18px; }
  .hw-devices { grid-template-columns: 1fr; }
  .device-card { flex-direction: row; text-align: left; gap: 14px; padding: 16px; }
  .device-card:last-child { display: flex; }
  .device-card b { margin-top: 0; }
  .device-ico { width: 44px; height: 44px; }

  .sla-grid { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr 1fr; padding: 26px 8px; }
  .stat-item strong { font-size: 28px; }
  .stat-item span { font-size: 12.5px; }

  .news-cover { height: 150px; }
  .news-body { padding: 20px; }
  .news-body h3 { font-size: 17.5px; }
  .news-item { padding: 16px 18px; }
  .news-item h4 { font-size: 14.5px; }

  .footer-nav { grid-template-columns: 1fr 1fr; }
  .section-head--row .btn { width: 100%; }
}