/* ==========================================================================
   富沃科讯官网 · 主样式
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  --teal-900: #052f2f;
  --teal-800: #07403e;
  --teal-700: #0a5f5c;
  --teal-600: #0b7b77;
  --teal-500: #0d938d;
  --teal-400: #17b0a8;
  --teal-300: #6ad3ca;
  --teal-100: #d8f3f0;
  --teal-50: #eefaf8;

  --orange-600: #e07c05;
  --orange-500: #f7941d;
  --orange-400: #ffa53d;
  --orange-100: #fff1dd;

  --ink-900: #08201f;
  --ink-800: #102b2a;
  --ink-700: #1b3d3c;
  --ink-600: #335653;
  --muted: #5d7c7a;
  --muted-2: #7d9795;
  --line: #dcecea;
  --line-strong: #c7e0dd;
  --bg: #f7fbfa;
  --bg-soft: #eff7f5;
  --white: #fff;

  --radius-xl: 30px;
  --radius-lg: 24px;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-xs: 8px;

  --shadow-xs: 0 1px 2px rgba(8, 48, 46, .06);
  --shadow-sm: 0 4px 14px -6px rgba(8, 48, 46, .14);
  --shadow: 0 20px 50px -28px rgba(8, 48, 46, .42);
  --shadow-lg: 0 44px 90px -40px rgba(8, 48, 46, .5);
  --shadow-teal: 0 18px 40px -18px rgba(13, 147, 141, .55);

  --container: 1200px;
  --gutter: clamp(18px, 4vw, 32px);
  --header-h: 78px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", ui-monospace, Consolas, monospace;

  --ease: cubic-bezier(.22, .78, .3, 1);
}

/* ---------- 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) + 16px);
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink-600);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
h1, h2, h3, h4 {
  margin: 0;
  color: var(--ink-900);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: .005em;
}
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--teal-200, #b9ece7); color: var(--teal-900); }

:focus-visible {
  outline: 2px solid var(--teal-500);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 999;
  padding: 10px 18px;
  background: var(--teal-700);
  color: #fff;
  border-radius: 0 0 10px 10px;
  transition: top .2s;
}
.skip-link:focus { top: 0; }

.ico {
  display: inline-block;
  vertical-align: -.16em;
  flex: none;
}

.container {
  width: min(var(--container), 100% - var(--gutter) * 2);
  margin-inline: auto;
}

/* ---------- 按钮 ---------- */
.btn {
  --btn-bg: var(--teal-600);
  --btn-fg: #fff;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, color .25s, border-color .25s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(135deg, #12a49c, #07706c);
  box-shadow: var(--shadow-teal), inset 0 1px 0 rgba(255, 255, 255, .22);
}
.btn-primary:hover { box-shadow: 0 22px 46px -18px rgba(13, 147, 141, .7), inset 0 1px 0 rgba(255, 255, 255, .22); }

.btn-outline {
  background: rgba(255, 255, 255, .7);
  border-color: var(--line-strong);
  color: var(--ink-800);
}
.btn-outline:hover { border-color: var(--teal-400); color: var(--teal-700); background: #fff; }

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--ink-700);
}
.btn-ghost:hover { background: var(--teal-50); color: var(--teal-700); }

.btn-light {
  background: #fff;
  color: var(--teal-800);
  box-shadow: 0 18px 40px -22px rgba(0, 0, 0, .6);
}
.btn-light:hover { background: #f4fffd; }

.btn-outline-light {
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .45);
  color: #fff;
}
.btn-outline-light:hover { background: rgba(255, 255, 255, .16); }

.btn-sm { padding: 9px 16px; font-size: 13.5px; }
.btn-lg { padding: 16px 30px; font-size: 16.5px; }
.btn-block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--teal-600);
  font-size: 14px;
  font-weight: 700;
  transition: gap .2s, color .2s;
}
.link-arrow:hover { color: var(--teal-700); gap: 10px; }

/* ---------- 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, .55);
  border-bottom: 1px solid transparent;
  transition: background .3s, box-shadow .3s, border-color .3s, height .3s;
}
.site-header.is-scrolled {
  height: 66px;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom-color: var(--line);
  box-shadow: 0 10px 30px -26px rgba(8, 48, 46, .6);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand { display: flex; align-items: center; flex: none; }
.brand-logo {
  display: block;
  height: 42px;
  width: auto;
  transition: height .3s;
}
.site-header.is-scrolled .brand-logo { height: 36px; }

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-link {
  position: relative;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--ink-700);
  font-size: 15px;
  font-weight: 600;
  transition: color .2s, background .2s;
}
.nav-link:hover { color: var(--teal-700); background: rgba(13, 147, 141, .07); }
.nav-link.is-active { color: var(--teal-700); }
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 5px;
  height: 5px;
  margin-left: -2.5px;
  border-radius: 50%;
  background: var(--orange-500);
}

/* 二级导航 */
.nav-item { position: relative; }
.nav-item .nav-link { display: inline-flex; align-items: center; gap: 4px; }
.nav-caret-ico { transform: rotate(90deg); opacity: .55; transition: transform .2s; }
.nav-item:hover .nav-caret-ico,
.nav-item:focus-within .nav-caret-ico { transform: rotate(-90deg); }
.subnav {
  position: absolute;
  left: 0;
  top: calc(100% + 8px);
  min-width: 190px;
  padding: 10px;
  margin: 0;
  list-style: none;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 24px 50px -28px rgba(8, 48, 46, .45), 0 2px 8px rgba(8, 48, 46, .06);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .18s, transform .18s, visibility .18s;
  z-index: 30;
}
.subnav::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -10px;
  height: 10px;
}
.nav-item:hover .subnav,
.nav-item:focus-within .subnav {
  opacity: 1;
  visibility: visible;
  transform: none;
}
.subnav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  border-radius: 10px;
  color: var(--ink-700);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  transition: background .18s, color .18s;
}
.subnav a .ico { color: var(--teal-500); opacity: 0; transform: translateX(-4px); transition: opacity .18s, transform .18s; }
.subnav a:hover { background: var(--teal-50); color: var(--teal-700); }
.subnav a:hover .ico { opacity: 1; transform: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 6px;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--ink-800);
  cursor: pointer;
}

.mobile-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  padding: 14px var(--gutter) 22px;
  background: rgba(255, 255, 255, .98);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 30px 50px -30px rgba(8, 48, 46, .5);
  animation: menu-in .28s var(--ease) both;
}
.mobile-menu[hidden] { display: none; }
@keyframes menu-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}
.mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-800);
  font-size: 16px;
  font-weight: 600;
}
.mobile-link.is-active { color: var(--teal-600); }
.mobile-link .ico { color: var(--muted-2); }
.mobile-sub {
  list-style: none;
  margin: 0 0 6px;
  padding: 2px 4px 8px 14px;
  border-bottom: 1px solid var(--line);
}
.mobile-sub a {
  display: block;
  padding: 9px 0;
  color: var(--muted);
  font-size: 14px;
}
.mobile-sub a:hover { color: var(--teal-700); }

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  padding: clamp(30px, 5vw, 66px) 0 26px;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 12% 0%, #eafaf7 0%, rgba(234, 250, 247, 0) 58%),
    radial-gradient(90% 80% at 92% 8%, #fdf1e3 0%, rgba(253, 241, 227, 0) 55%),
    linear-gradient(180deg, #fbfffe 0%, #ffffff 70%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .55;
}
.glow-a {
  width: 520px; height: 520px;
  left: -180px; top: -140px;
  background: radial-gradient(circle, rgba(23, 176, 168, .5), transparent 70%);
}
.glow-b {
  width: 460px; height: 460px;
  right: -120px; top: 40px;
  background: radial-gradient(circle, rgba(247, 148, 29, .32), transparent 70%);
}
.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(11, 123, 119, .06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 123, 119, .06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(80% 70% at 40% 30%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(80% 70% at 40% 30%, #000 20%, transparent 80%);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  align-items: center;
  gap: clamp(28px, 5vw, 64px);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  padding: 7px 15px 7px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, .75);
  color: var(--teal-700);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
}
.kicker-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange-500);
  box-shadow: 0 0 0 4px rgba(247, 148, 29, .16);
}

.hero-title {
  font-size: clamp(34px, 4.6vw, 62px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -.005em;
  margin-bottom: 20px;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(100deg, #0b7b77 10%, #17b0a8 55%, #f7941d 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}
.hero-desc {
  max-width: 33em;
  color: var(--ink-600);
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.85;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.hero-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  color: var(--muted);
  font-size: 13.5px;
}
.hero-note .ico { color: var(--teal-500); }

.hero-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: clamp(34px, 5vw, 62px);
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.hero-stat { padding-right: 12px; }
.stat-value {
  display: block;
  color: var(--ink-900);
  font-size: clamp(24px, 2.4vw, 32px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
}
.stat-value small {
  font-size: .5em;
  font-weight: 700;
  color: var(--teal-600);
  margin-left: 2px;
}
.stat-label {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

/* ---------- 收银台示意 ---------- */
.hero-visual { position: relative; }
.mock {
  position: relative;
  border-radius: 20px;
  background: linear-gradient(165deg, #10322f 0%, #0a2325 55%, #081d20 100%);
  border: 1px solid rgba(255, 255, 255, .1);
  box-shadow: 0 50px 90px -40px rgba(4, 30, 30, .75), 0 0 0 1px rgba(255, 255, 255, .04) inset;
  overflow: visible;
  transform: perspective(1400px) rotateY(-3.5deg) rotateX(1.5deg);
  transition: transform .6s var(--ease);
  animation: mock-float 7s ease-in-out infinite;
}
.mock:hover { transform: perspective(1400px) rotateY(0) rotateX(0); }
@keyframes mock-float {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -8px; }
}
.mock-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.mock-bar .dot { width: 9px; height: 9px; border-radius: 50%; }
.dot-r { background: #ff6b5e; }
.dot-y { background: #ffc442; }
.dot-g { background: #38d39f; }
.mock-title {
  margin-left: 10px;
  color: rgba(255, 255, 255, .8);
  font-size: 11.5px;
  letter-spacing: .04em;
}
.mock-clock {
  margin-left: auto;
  color: rgba(255, 255, 255, .35);
  font-size: 11px;
  font-family: var(--mono);
}
.mock-body {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) 132px;
  gap: 10px;
  padding: 12px;
  min-height: 258px;
}
.mock-side {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px 6px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .04);
}
.ms {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 7px;
  border-radius: 8px;
  color: rgba(255, 255, 255, .5);
  font-size: 10.5px;
  white-space: nowrap;
}
.msi {
  width: 12px; height: 12px;
  border-radius: 4px;
  border: 1.5px solid currentColor;
  opacity: .8;
}
.ms.is-active {
  background: linear-gradient(135deg, rgba(23, 176, 168, .3), rgba(23, 176, 168, .1));
  color: #8df0e6;
  box-shadow: inset 0 0 0 1px rgba(141, 240, 230, .3);
}
.mock-main { display: flex; flex-direction: column; gap: 9px; min-width: 0; }
.mock-search {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 30px;
  padding: 0 10px;
  border-radius: 9px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .08);
}
.msk-line { width: 9px; height: 9px; border-radius: 3px; border: 1.5px solid rgba(141, 240, 230, .7); }
.msk-key { color: rgba(255, 255, 255, .38); font-size: 10px; }
.mock-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.mock-tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .06);
}
.thumb {
  display: block;
  height: 30px;
  border-radius: 7px;
  opacity: .85;
}
.t1 { background: linear-gradient(135deg, #2f9e8f, #1b6f66); }
.t2 { background: linear-gradient(135deg, #4a8be0, #2c5fa8); }
.t3 { background: linear-gradient(135deg, #f0a33c, #c9761a); }
.mock-tile b {
  color: rgba(255, 255, 255, .78);
  font-size: 9.5px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mock-tile em {
  color: #7fe6dc;
  font-size: 9.5px;
  font-style: normal;
  font-family: var(--mono);
}
.mock-cart {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .055);
  border: 1px solid rgba(255, 255, 255, .07);
  font-size: 10px;
}
.mock-cart-head {
  padding-bottom: 7px;
  border-bottom: 1px dashed rgba(255, 255, 255, .16);
  color: rgba(255, 255, 255, .8);
  font-weight: 700;
  font-size: 10.5px;
}
.mock-line {
  display: flex;
  justify-content: space-between;
  gap: 6px;
  color: rgba(255, 255, 255, .55);
}
.mock-line b { color: rgba(255, 255, 255, .8); font-family: var(--mono); font-weight: 500; }
.mock-total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px dashed rgba(255, 255, 255, .16);
  color: rgba(255, 255, 255, .6);
}
.mock-total b { color: #8df0e6; font-size: 15px; font-family: var(--mono); }
.mock-pay {
  padding: 8px;
  border-radius: 8px;
  background: linear-gradient(135deg, #17b0a8, #0b7b77);
  color: #fff;
  font-weight: 700;
  text-align: center;
  font-size: 10.5px;
  box-shadow: 0 6px 14px -8px rgba(23, 176, 168, .9);
}
.mock-pay-alt {
  background: rgba(255, 255, 255, .1);
  color: rgba(255, 255, 255, .75);
  box-shadow: none;
}
.mock-float {
  position: absolute;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(255, 255, 255, .9);
  box-shadow: 0 24px 50px -26px rgba(8, 48, 46, .6);
  backdrop-filter: blur(10px);
  animation: float-in .8s .3s var(--ease) both;
}
@keyframes float-in {
  from { opacity: 0; translate: 0 12px; }
  to { opacity: 1; translate: 0 0; }
}
.float-a { left: -26px; bottom: 26px; }
.float-b { right: -14px; top: -16px; flex-direction: row; align-items: center; gap: 7px; color: var(--teal-700); font-size: 11.5px; font-weight: 700; }
.mf-label { color: var(--muted); font-size: 10.5px; }
.mf-value { color: var(--ink-900); font-size: 19px; font-weight: 800; font-family: var(--mono); }
.mf-trend { color: #d9760a; font-size: 10.5px; font-weight: 700; }
.mf-dot { width: 7px; height: 7px; border-radius: 50%; background: #17b0a8; box-shadow: 0 0 0 4px rgba(23, 176, 168, .18); }

/* ---------- 行业条 ---------- */
.section { padding: clamp(58px, 8vw, 104px) 0; }
.page-intro + .section,
.section-industries { padding: 26px 0 6px; }

.industries {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 16px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fff, #fbfefd);
  box-shadow: var(--shadow-xs);
}
.industries-label {
  flex: none;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .1em;
  padding-right: 20px;
  border-right: 1px solid var(--line);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--teal-50);
  border: 1px solid rgba(13, 147, 141, .14);
  color: var(--teal-800);
  font-size: 13px;
  white-space: nowrap;
  transition: background .2s, transform .2s;
}
.chip:hover { background: var(--teal-100); transform: translateY(-1px); }

/* ---------- 区块标题 ---------- */
.section-head {
  max-width: 760px;
  margin: 0 auto clamp(34px, 4.5vw, 56px);
  text-align: center;
}
.section-head .kicker { margin-bottom: 16px; }
.section-title {
  font-size: clamp(26px, 3.2vw, 42px);
  line-height: 1.25;
  letter-spacing: -.01em;
  margin-bottom: 16px;
}
.section-desc {
  color: var(--muted);
  font-size: clamp(14.5px, 1.1vw, 16.5px);
  line-height: 1.85;
}
.section-head-left { margin-left: 0; text-align: left; }
.section-head-left .section-desc { margin-bottom: 26px; }

/* ---------- 应用卡片 ---------- */
.app-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.app-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-xs);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
  overflow: hidden;
}
.app-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--teal-400), var(--teal-600) 60%, transparent);
  opacity: 0;
  transition: opacity .35s;
}
.app-card:hover {
  transform: translateY(-6px);
  border-color: rgba(13, 147, 141, .35);
  box-shadow: var(--shadow);
}
.app-card:hover::before { opacity: 1; }

.app-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
}
.app-icon {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--teal-50);
  box-shadow: inset 0 0 0 1px rgba(13, 147, 141, .12);
  overflow: hidden;
}
.app-icon img { width: 56px; height: 56px; object-fit: contain; }
.tag {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: .02em;
}
.tag-cat { background: var(--teal-50); color: var(--teal-700); margin-left: auto; }
.tag-ver { background: var(--orange-100); color: #b46a06; }
.app-name { font-size: 18.5px; margin-bottom: 4px; }
.app-name a::after { content: ""; position: absolute; inset: 0; }
.app-sub { color: var(--teal-700); font-size: 12.5px; font-weight: 600; }
.app-intro {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.8;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.app-plat {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}
.app-plat li {
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--muted);
  font-size: 11px;
  background: var(--bg);
}
.app-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  padding-top: 20px;
}
.app-card .app-foot .btn { position: relative; z-index: 1; }
.app-card .app-foot .link-arrow { position: relative; z-index: 1; }

.app-card-more {
  align-items: flex-start;
  justify-content: center;
  gap: 10px;
  border-style: dashed;
  border-color: var(--line-strong);
  background: linear-gradient(160deg, #fbfefd, #f4fbfa);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}
.app-card-more:hover { border-color: var(--teal-400); background: #fff; }
.app-card-more b { color: var(--ink-800); font-size: 15.5px; }
.app-card-more .link-arrow { margin-top: 6px; }
.more-plus {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  background: #fff;
  border: 1px dashed var(--line-strong);
  color: var(--teal-600);
  margin-bottom: 6px;
}

/* ---------- 功能网格 ---------- */
.section-features { background: linear-gradient(180deg, #fff, var(--bg) 22%, var(--bg) 78%, #fff); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.feature-card {
  padding: 26px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(13, 147, 141, .3);
  box-shadow: var(--shadow-sm);
}
.feature-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 16px;
  border-radius: 13px;
  background: linear-gradient(150deg, var(--teal-100), #f2fcfa);
  color: var(--teal-700);
  box-shadow: inset 0 0 0 1px rgba(13, 147, 141, .16);
}
.feature-card:nth-child(4n+2) .feature-icon { background: linear-gradient(150deg, #e8f3ff, #f5faff); color: #2f6db5; }
.feature-card:nth-child(4n+3) .feature-icon { background: linear-gradient(150deg, var(--orange-100), #fffaf2); color: #c0780c; }
.feature-card:nth-child(4n+4) .feature-icon { background: linear-gradient(150deg, #e9f8ee, #f6fdf8); color: #23854f; }
.feature-card h3 { font-size: 16.5px; margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* ---------- 三端 ---------- */
.trio {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.trio-card {
  position: relative;
  padding: 30px 26px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}
.trio-card::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(23, 176, 168, .1), transparent 70%);
}
.trio-label {
  display: inline-block;
  margin-bottom: 18px;
  padding: 3px 11px;
  border-radius: 999px;
  background: var(--teal-50);
  color: var(--teal-700);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .08em;
}
.trio-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 16px;
  border-radius: 15px;
  background: linear-gradient(150deg, #0e847f, #075b58);
  color: #fff;
  box-shadow: 0 16px 30px -18px rgba(8, 64, 62, .8);
}
.trio-card h3 { font-size: 20px; margin-bottom: 8px; }
.trio-card > p { color: var(--muted); font-size: 13.5px; line-height: 1.8; }
.trio-points { margin: 18px 0 20px; display: grid; gap: 9px; }
.trio-points li {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  color: var(--ink-600);
  font-size: 13px;
  line-height: 1.6;
}
.trio-points .ico { color: var(--teal-500); margin-top: 4px; }

/* ---------- 流程 ---------- */
.flow-wrap {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: clamp(30px, 6vw, 80px);
  align-items: start;
}
.flow { position: relative; display: grid; gap: 12px; }
.flow::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 24px;
  bottom: 24px;
  width: 1px;
  background: repeating-linear-gradient(to bottom, var(--line-strong) 0 6px, transparent 6px 12px);
}
.flow-item {
  position: relative;
  display: flex;
  gap: 20px;
  padding: 18px 20px 18px 0;
  border-radius: var(--radius);
  transition: background .3s;
}
.flow-item:hover { background: var(--bg); }
.flow-num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  flex: none;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line-strong);
  color: var(--teal-700);
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  box-shadow: var(--shadow-xs);
}
.flow-item:hover .flow-num { background: var(--teal-600); border-color: var(--teal-600); color: #fff; }
.flow-item h3 { font-size: 16.5px; margin-bottom: 4px; }
.flow-item p { color: var(--muted); font-size: 13.5px; line-height: 1.75; }

/* ---------- 深色数据带 ---------- */
.band {
  position: relative;
  padding: 0 0 clamp(20px, 4vw, 40px);
}
.band-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 60px);
  align-items: center;
  padding: clamp(32px, 4.5vw, 56px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(247, 148, 29, .22), transparent 55%),
    radial-gradient(80% 120% at 0% 100%, rgba(23, 176, 168, .28), transparent 55%),
    linear-gradient(135deg, #0a3331, #062322 60%, #071c1e);
  color: rgba(255, 255, 255, .72);
  overflow: hidden;
}
.band-inner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(60% 100% at 80% 0%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(60% 100% at 80% 0%, #000, transparent 75%);
  pointer-events: none;
}
.band-copy h2 {
  color: #fff;
  font-size: clamp(22px, 2.6vw, 34px);
  margin-bottom: 12px;
}
.band-copy p { font-size: 14px; line-height: 1.85; max-width: 34em; }
.band-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding-left: clamp(0px, 3vw, 32px);
  border-left: 1px solid rgba(255, 255, 255, .12);
}
.band-stats b {
  display: block;
  color: #fff;
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 800;
  line-height: 1.15;
  font-family: var(--mono);
  letter-spacing: -.02em;
}
.band-stats span { display: block; margin-top: 4px; color: rgba(255, 255, 255, .55); font-size: 12px; }

/* ---------- CTA ---------- */
.section-cta { padding-top: 0; }
.cta-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: clamp(30px, 4.5vw, 56px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(70% 140% at 90% 10%, rgba(247, 148, 29, .34), transparent 60%),
    linear-gradient(120deg, #0a6f6a, #0b8a83 55%, #0d7f7a);
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-card::before {
  content: "";
  position: absolute;
  left: -80px;
  bottom: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .16);
}
.cta-copy { position: relative; flex: 1 1 auto; max-width: 640px; }
.cta-copy h2 { color: #fff; font-size: clamp(22px, 2.6vw, 34px); margin-bottom: 10px; }
.cta-copy p { color: rgba(255, 255, 255, .82); font-size: 14.5px; line-height: 1.8; }
.cta-actions { position: relative; display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: clamp(40px, 6vw, 80px);
  padding: clamp(44px, 6vw, 72px) 0 0;
  background:
    radial-gradient(60% 80% at 10% 0%, rgba(23, 176, 168, .14), transparent 60%),
    #061b1c;
  color: rgba(255, 255, 255, .62);
  font-size: 13.5px;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 56px);
  padding-bottom: clamp(30px, 4vw, 52px);
}
.footer-logo img { height: 40px; width: auto; }
.footer-desc { margin-top: 14px; max-width: 30em; line-height: 1.85; color: rgba(255, 255, 255, .55); font-size: 13px; }
.footer-title { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 16px; letter-spacing: .04em; }
.footer-links { display: grid; gap: 10px; }
.footer-links a, .footer-links span { color: rgba(255, 255, 255, .6); transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-contact li { display: flex; align-items: center; gap: 8px; }
.footer-contact .ico { color: var(--teal-300); }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, .09);
  color: rgba(255, 255, 255, .42);
  font-size: 12.5px;
}
.footer-legal { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-legal a:hover { color: #fff; }

/* ---------- 通用页面头 ---------- */
.page-head {
  position: relative;
  padding: clamp(34px, 5vw, 64px) 0 clamp(24px, 3vw, 36px);
  background:
    radial-gradient(80% 100% at 0% 0%, #eafaf7, transparent 60%),
    radial-gradient(60% 90% at 100% 0%, #fdf3e6, transparent 55%),
    linear-gradient(180deg, #fbfffe, #fff);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.page-head h1 {
  font-size: clamp(28px, 4vw, 46px);
  margin-bottom: 14px;
  letter-spacing: -.01em;
}
.page-head p.lead {
  max-width: 46em;
  color: var(--muted);
  font-size: clamp(14.5px, 1.15vw, 16.5px);
  line-height: 1.85;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
  color: var(--muted-2);
  font-size: 12.5px;
}
.breadcrumb a:hover { color: var(--teal-600); }
.breadcrumb .ico { opacity: .6; transform: rotate(-90deg); }

/* ---------- 下载中心 ---------- */
.dl-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
}
.filter-chip {
  padding: 8px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #fff;
  color: var(--ink-700);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all .2s;
}
.filter-chip:hover { border-color: var(--teal-400); color: var(--teal-700); }
.filter-chip.is-active {
  background: var(--teal-700);
  border-color: var(--teal-700);
  color: #fff;
  box-shadow: 0 10px 24px -14px rgba(10, 95, 92, .9);
}

.dl-list { display: grid; gap: 22px; }
.dl-group {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-xs);
  overflow: hidden;
  transition: box-shadow .3s, border-color .3s;
}
.dl-group:hover { box-shadow: var(--shadow-sm); border-color: var(--line-strong); }
.dl-head {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 24px 26px;
  background: linear-gradient(180deg, #fbfefd, #fff);
}
.dl-head .app-icon { flex: none; }
.dl-title { min-width: 0; flex: 1; }
.dl-title h2 { font-size: 20px; margin-bottom: 4px; }
.dl-title h2 a:hover { color: var(--teal-700); }
.dl-title p { color: var(--muted); font-size: 13px; line-height: 1.7; }
.dl-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 8px;
  color: var(--muted-2);
  font-size: 12px;
}
.dl-meta span { display: inline-flex; align-items: center; gap: 5px; }
.dl-meta .ico { color: var(--teal-500); }
.dl-head .btn { flex: none; align-self: center; }

.dl-pkgs { border-top: 1px solid var(--line); }
.dl-pkg {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 26px;
  border-bottom: 1px dashed var(--line);
}
.dl-pkg:last-child { border-bottom: 0; }
.dl-pkg:hover { background: #fbfefd; }
.pkg-ext {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: none;
  border-radius: 11px;
  background: var(--teal-50);
  border: 1px solid rgba(13, 147, 141, .16);
  color: var(--teal-700);
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: uppercase;
}
.dl-pkg-body { flex: 1; min-width: 0; }
.dl-pkg-body b { display: block; color: var(--ink-800); font-size: 14.5px; font-weight: 700; }
.dl-pkg-body small { display: block; margin-top: 2px; color: var(--muted-2); font-size: 12px; line-height: 1.6; }
.dl-pkg .btn { flex: none; }
.dl-pkg.is-missing .pkg-ext { background: #f4f6f6; border-color: var(--line); color: var(--muted-2); }
.dl-pkg.is-missing .btn { opacity: .5; pointer-events: none; }

.notice {
  display: flex;
  gap: 12px;
  margin-top: 26px;
  padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--teal-50);
  border: 1px solid rgba(13, 147, 141, .16);
  color: var(--teal-800);
  font-size: 13.5px;
  line-height: 1.8;
}
.notice .ico { color: var(--teal-600); margin-top: 3px; }
.notice-warn { background: var(--orange-100); border-color: rgba(247, 148, 29, .25); color: #8a5305; }
.notice-warn .ico { color: var(--orange-600); }

/* ---------- 应用详情 ---------- */
.app-hero {
  position: relative;
  padding: clamp(28px, 4vw, 52px) 0 clamp(26px, 3vw, 40px);
  background:
    radial-gradient(70% 100% at 0% 0%, #eafaf7, transparent 60%),
    linear-gradient(180deg, #fbfffe, #fff);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.app-hero-inner {
  display: flex;
  align-items: flex-start;
  gap: clamp(18px, 3vw, 32px);
}
.app-hero-icon {
  flex: none;
  width: 92px;
  height: 92px;
  border-radius: 24px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.app-hero-icon img { width: 100%; height: 100%; object-fit: cover; }
.app-hero-copy { min-width: 0; flex: 1; }
.app-hero-copy .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.app-hero-copy h1 { font-size: clamp(26px, 3.4vw, 40px); margin-bottom: 8px; }
.app-hero-copy .sub { color: var(--teal-700); font-size: 15px; font-weight: 600; }
.app-hero-copy .intro { max-width: 52em; margin-top: 14px; color: var(--muted); font-size: 14.5px; line-height: 1.85; }
.app-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

.app-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
  padding: clamp(34px, 5vw, 56px) 0 clamp(40px, 6vw, 80px);
}
.prose h2 { font-size: 22px; margin: 0 0 16px; }
.prose h3 { font-size: 16.5px; margin: 26px 0 8px; }
.prose p { color: var(--ink-600); font-size: 14.5px; line-height: 1.9; }
.prose + .prose { margin-top: 34px; }
.hl-list { display: grid; gap: 12px; margin-top: 6px; }
.hl-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink-700);
  font-size: 14px;
  line-height: 1.7;
  box-shadow: var(--shadow-xs);
}
.hl-list .ico { color: var(--teal-500); margin-top: 3px; }
.steps-list { counter-reset: step; display: grid; gap: 14px; }
.steps-list li {
  position: relative;
  display: flex;
  gap: 14px;
  color: var(--ink-600);
  font-size: 14px;
  line-height: 1.8;
}
.steps-list li::before {
  counter-increment: step;
  content: counter(step);
  flex: none;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--teal-50);
  border: 1px solid rgba(13, 147, 141, .2);
  color: var(--teal-700);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
}
.side-card {
  position: sticky;
  top: calc(var(--header-h) + 16px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.side-card-head { padding: 20px 22px 16px; border-bottom: 1px solid var(--line); }
.side-card-head h2 { font-size: 16px; }
.side-card-head p { color: var(--muted); font-size: 12.5px; margin-top: 4px; }
.spec-list { padding: 6px 22px; }
.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 13px;
}
.spec-list li:last-child { border-bottom: 0; }
.spec-list dt, .spec-list span.k { color: var(--muted); }
.spec-list span.v { color: var(--ink-800); font-weight: 600; text-align: right; }
.side-dl { display: grid; gap: 8px; padding: 16px 22px 20px; }
.side-dl .btn { justify-content: flex-start; }
.side-docs { padding: 0 22px 20px; display: grid; gap: 8px; }
.side-docs a {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--teal-700);
  font-size: 13px;
  font-weight: 600;
}
.side-note { padding: 14px 22px; background: var(--bg); border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; line-height: 1.7; }

/* ---------- 关于 / 联系 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}
.about-text p { color: var(--ink-600); font-size: 15px; line-height: 1.95; margin-bottom: 16px; }
.about-text p:last-child { margin-bottom: 0; }
.value-cards { display: grid; gap: 12px; }
.value-card {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-xs);
}
.value-card b { display: block; color: var(--ink-900); font-size: 15px; margin-bottom: 4px; }
.value-card span { color: var(--muted); font-size: 13px; line-height: 1.75; }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.contact-card {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-xs);
  transition: transform .3s var(--ease), box-shadow .3s;
}
.contact-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.contact-card .ico { color: var(--teal-600); margin-bottom: 12px; }
.contact-card b { display: block; color: var(--ink-900); font-size: 14px; margin-bottom: 4px; }
.contact-card span, .contact-card a { color: var(--muted); font-size: 13px; line-height: 1.7; word-break: break-all; }
.contact-card a:hover { color: var(--teal-700); }

.cta-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 26px;
  padding: 24px 28px;
  border-radius: var(--radius);
  border: 1px dashed var(--line-strong);
  background: var(--teal-50);
}
.cta-inline p { color: var(--teal-800); font-size: 14px; font-weight: 600; }

/* ---------- 入场动画 ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  transition-delay: calc(var(--i, 0) * 70ms);
}
.js .reveal.is-in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .app-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .contact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .app-layout { grid-template-columns: minmax(0, 1fr) 300px; }
  .float-a { left: -12px; }
  .float-b { right: -4px; }
}

@media (max-width: 980px) {
  .nav, .header-login { display: none; }
  .nav-toggle { display: inline-flex; }
  .hero-inner { grid-template-columns: minmax(0, 1fr); }
  .hero-visual { margin-top: 12px; }
  .mock { transform: none; max-width: 620px; }
  .hero-stats { margin-top: 36px; }
  .trio { grid-template-columns: minmax(0, 1fr); }
  .flow-wrap { grid-template-columns: minmax(0, 1fr); }
  .band-inner { grid-template-columns: minmax(0, 1fr); }
  .band-stats { border-left: 0; border-top: 1px solid rgba(255, 255, 255, .12); padding: 20px 0 0; }
  .cta-card { flex-direction: column; align-items: flex-start; }
  .app-layout { grid-template-columns: minmax(0, 1fr); }
  .side-card { position: static; }
  .about-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 8px; }
  .mock-body { grid-template-columns: 58px minmax(0, 1fr); }
  .mock-cart { display: none; }
  .mock-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .footer-brand { order: -1; }
}

@media (max-width: 640px) {
  :root { --header-h: 66px; }
  body { font-size: 15px; }
  .brand-logo { height: 34px; }
  .app-grid { grid-template-columns: minmax(0, 1fr); }
  .feature-grid { grid-template-columns: minmax(0, 1fr); }
  .contact-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-actions .btn { flex: 1 1 auto; }
  .industries { flex-direction: column; align-items: flex-start; gap: 14px; padding: 16px 18px; }
  .industries-label { border-right: 0; padding-right: 0; }
  .dl-head { flex-wrap: wrap; padding: 20px; }
  .dl-head .btn { width: 100%; }
  .dl-pkg { flex-wrap: wrap; padding: 16px 20px; }
  .dl-pkg .btn { width: 100%; }
  .app-hero-inner { flex-direction: column; }
  .app-hero-icon { width: 74px; height: 74px; border-radius: 20px; }
  .float-a, .float-b { display: none; }
  .mock { border-radius: 16px; }
  .mock-body { min-height: 210px; padding: 10px; gap: 8px; }
  .ms { font-size: 9.5px; padding: 5px; gap: 5px; }
  .mock-side { padding: 6px 4px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .cta-inline { padding: 20px; }
}

@media (max-width: 400px) {
  .hero-title { font-size: 30px; }
  .stat-value { font-size: 21px; }
  .mock-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .btn { padding: 12px 18px; }
  .btn-lg { padding: 14px 20px; font-size: 15px; }
}

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

/* ---------- 打印 ---------- */
@media print {
  .site-header, .site-footer, .hero-visual, .cta-card, .band { display: none !important; }
  body { color: #000; }
  .section { padding: 12px 0; }
}

/* ==========================================================================
   关于我们 / 联系表单
   ========================================================================== */

.tags { display: flex; flex-wrap: wrap; gap: 8px; }

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: clamp(30px, 5vw, 64px);
  align-items: start;
}

.about-grid .prose p { margin-bottom: 16px; }
.about-grid .prose h2 { margin-top: 28px; }

.about-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.about-side { display: grid; gap: 14px; }

.about-card {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-18, 18px);
  background: #fff;
  box-shadow: var(--shadow-xs, 0 1px 2px rgba(8, 32, 31, .04));
}
.about-card h3 { font-size: 15.5px; margin-bottom: 6px; color: var(--ink-800, #0f2c2a); }
.about-card p { color: var(--muted); font-size: 13.5px; line-height: 1.8; }

.about-card-brand {
  background: linear-gradient(160deg, var(--teal-50, #eef9f7), #fff 70%);
  border-color: rgba(13, 147, 141, .18);
}
.about-card-brand img { height: 46px; width: auto; margin-bottom: 10px; }
.about-card-brand p { color: var(--teal-700, #0b7b77); font-weight: 700; font-size: 15px; margin-bottom: 2px; }
.about-card-brand span { font-family: var(--mono, ui-monospace, monospace); font-size: 11.5px; letter-spacing: .18em; color: var(--muted-2, #8aa6a4); }

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.contact-list { display: grid; gap: 18px; }
.contact-list li { display: flex; gap: 12px; align-items: flex-start; }
.contact-list .ico {
  flex: none;
  width: 40px;
  height: 40px;
  padding: 10px;
  border-radius: 12px;
  background: var(--teal-50, #eef9f7);
  color: var(--teal-600, #0d938d);
}
.contact-list div { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.contact-list span { font-size: 12px; color: var(--muted-2, #8aa6a4); letter-spacing: .02em; }
.contact-list a, .contact-list b { font-size: 15px; font-weight: 700; color: var(--ink-800, #0f2c2a); }
.contact-list a:hover { color: var(--teal-600, #0d938d); }

.contact-tip {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-top: 26px;
  padding: 14px 16px;
  border: 1px dashed rgba(13, 147, 141, .3);
  border-radius: 14px;
  background: var(--teal-50, #eef9f7);
}
.contact-tip .ico { color: var(--teal-600, #0d938d); margin-top: 2px; }
.contact-tip p { font-size: 12.5px; line-height: 1.7; color: #2a5c58; }

.contact-form {
  display: grid;
  gap: 14px;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: var(--shadow-sm, 0 12px 30px -22px rgba(8, 32, 31, .35));
}

.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field > span { font-size: 12.5px; font-weight: 700; color: #34524f; }
.field > span i { color: var(--orange-600, #e07b00); font-style: normal; }
.field input,
.field textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line-strong, #cfe2df);
  border-radius: 11px;
  background: #fbfdfd;
  font-family: inherit;
  font-size: 14px;
  color: var(--ink-800, #0f2c2a);
  line-height: 1.6;
  transition: border-color .16s, box-shadow .16s, background .16s;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input::placeholder, .field textarea::placeholder { color: #a9bfbd; }
.field input:focus, .field textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--teal-500, #17b0a8);
  box-shadow: 0 0 0 3px rgba(13, 147, 141, .14);
}

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-note { font-size: 12px; color: var(--muted-2, #8aa6a4); text-align: center; line-height: 1.6; }

.flash {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  border-radius: 11px;
  font-size: 13.5px;
  font-weight: 600;
}
.flash-ok { background: #e4f6ef; color: #0c6b4f; border: 1px solid #bfe9da; }
.flash-err { background: #fdecea; color: #a52a21; border: 1px solid #f6cdc9; }

@media (max-width: 980px) {
  .about-grid { grid-template-columns: minmax(0, 1fr); }
  .contact-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 640px) {
  .field-row { grid-template-columns: minmax(0, 1fr); }
  .about-side { grid-template-columns: minmax(0, 1fr); }
}

/* ==========================================================================
   404
   ========================================================================== */

.page-head-404 { text-align: center; padding-bottom: clamp(20px, 3vw, 34px); }
.page-head-404 .breadcrumb { justify-content: center; }
.page-head-404 h1 { margin-bottom: 12px; }
.page-head-404 .lead { margin-left: auto; margin-right: auto; }
.page-head-404 .hero-actions { margin-top: 26px; }

.err-code {
  font-size: clamp(72px, 13vw, 132px);
  line-height: .9;
  font-weight: 900;
  letter-spacing: -.04em;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--teal-600, #0d938d) 10%, var(--teal-300, #4fd0c6) 52%, var(--orange-500, #f7941d) 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: var(--mono, ui-monospace, monospace);
}

@media (max-width: 640px) {
  .page-head-404 .hero-actions { flex-direction: column; align-items: stretch; }
}

/* ---------- 定制方案 ---------- */
.section-custom { padding-top: clamp(10px, 2vw, 20px); }
.custom-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(26px, 4vw, 64px);
  align-items: center;
  padding: clamp(30px, 4.5vw, 58px);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(80% 130% at 100% 0%, rgba(247, 148, 29, .26), transparent 58%),
    radial-gradient(90% 130% at 0% 100%, rgba(23, 176, 168, .3), transparent 60%),
    linear-gradient(135deg, #08302f, #05211f 62%, #061c1e);
  color: rgba(255, 255, 255, .74);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.custom-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(70% 100% at 20% 0%, #000, transparent 78%);
  -webkit-mask-image: radial-gradient(70% 100% at 20% 0%, #000, transparent 78%);
  pointer-events: none;
}
.custom-main { position: relative; }
.kicker-light {
  background: rgba(255, 255, 255, .1);
  border-color: rgba(255, 255, 255, .16);
  color: #b8efe9;
}
.kicker-light .kicker-dot { background: var(--orange-500); }
.custom-title {
  color: #fff;
  font-size: clamp(23px, 2.9vw, 38px);
  line-height: 1.28;
  letter-spacing: -.02em;
  margin: 14px 0 12px;
  max-width: 15em;
}
.custom-sub { font-size: 14.5px; line-height: 1.9; max-width: 32em; color: rgba(255, 255, 255, .7); }
.custom-price {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 20px 0 24px;
  padding: 14px 18px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .12);
}
.custom-price b { color: #fff; font-size: 16px; font-weight: 800; }
.custom-price span { color: rgba(255, 255, 255, .6); font-size: 12.5px; }
.custom-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.custom-steps li {
  padding: 18px 18px 16px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .055);
  border: 1px solid rgba(255, 255, 255, .1);
}
.custom-num {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--orange-400, #ffb066);
  letter-spacing: .08em;
  margin-bottom: 8px;
}
.custom-steps h3 { color: #fff; font-size: 15.5px; margin-bottom: 5px; }
.custom-steps p { font-size: 13px; line-height: 1.75; color: rgba(255, 255, 255, .64); }
.custom-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 16px;
  color: var(--ink-600);
  font-size: 13px;
  line-height: 1.7;
}
.custom-note .ico { color: var(--teal-500); flex: none; margin-top: 3px; }

/* ---------- 在线服务条 ---------- */
.online-strip {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  margin-bottom: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--teal-200, #b9ece7);
  background: linear-gradient(120deg, var(--teal-50), #ffffff 70%);
}
.online-strip-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: none;
  border-radius: 14px;
  background: linear-gradient(150deg, var(--teal-100), #f2fcfa);
  color: var(--teal-700);
}
.online-strip-body { flex: 1; min-width: 0; }
.online-strip-body b { display: block; color: var(--ink-900); font-size: 15.5px; margin-bottom: 4px; }
.online-strip-body p { color: var(--ink-600); font-size: 13px; line-height: 1.7; }
.online-strip-body .mono { font-family: var(--mono); font-weight: 700; color: var(--teal-700); }
.online-strip-actions { display: flex; align-items: center; gap: 14px; flex: none; }
.online-strip .link-arrow { font-size: 13px; }

@media (max-width: 980px) {
  .custom-card { grid-template-columns: 1fr; gap: 26px; }
  .online-strip { flex-wrap: wrap; }
  .online-strip-actions { width: 100%; }
}
@media (max-width: 560px) {
  .custom-steps { grid-template-columns: 1fr; }
  .custom-price { flex-direction: column; align-items: flex-start; }
}
.spec-list span.k { white-space: nowrap; flex: none; }
.spec-list span.v { min-width: 0; word-break: break-word; }
.custom-steps { grid-auto-rows: 1fr; }@media (max-width: 640px) {
  .online-strip { align-items: flex-start; padding: 16px; gap: 12px; }
  .online-strip-icon { width: 38px; height: 38px; border-radius: 12px; }
  .online-strip-actions { flex-direction: column; align-items: stretch; gap: 10px; }
  .online-strip-actions .link-arrow { justify-content: center; }
}
/* ---------- 图片展示（应用详情） ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 14px;
  margin-top: 6px;
}
.gallery-item {
  position: relative;
  display: block;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #f2f7f6;
  overflow: hidden;
  cursor: zoom-in;
  aspect-ratio: 4 / 3;
  transition: transform .25s var(--ease), box-shadow .25s, border-color .25s;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .45s var(--ease);
}
.gallery-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(6, 32, 31, .38));
  opacity: 0;
  transition: opacity .25s;
}
.gallery-item:hover { transform: translateY(-2px); box-shadow: 0 20px 40px -30px rgba(8, 48, 46, .55); border-color: rgba(13, 147, 141, .35); }
.gallery-item:hover img { transform: scale(1.04); }
.gallery-item:hover::after { opacity: 1; }
.gallery-item:focus-visible { outline: 2px solid var(--teal-500); outline-offset: 3px; }

/* ---------- 灯箱 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px 56px;
  background: rgba(5, 24, 23, .9);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  animation: lb-in .22s ease both;
}
.lightbox[hidden] { display: none; }
@keyframes lb-in { from { opacity: 0; } to { opacity: 1; } }
.lightbox-figure {
  margin: 0;
  max-width: min(1100px, 94vw);
  text-align: center;
}
.lightbox-figure img {
  display: block;
  max-width: 100%;
  max-height: 82vh;
  margin: 0 auto;
  border-radius: 14px;
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .8);
  background: #fff;
}
.lightbox-figure figcaption {
  margin-top: 14px;
  color: rgba(255, 255, 255, .82);
  font-size: 14px;
}
.lightbox-btn {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 50%;
  background: rgba(255, 255, 255, .12);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: background .2s, transform .2s;
}
.lightbox-btn:hover { background: rgba(255, 255, 255, .24); }
.lightbox-close { top: 18px; right: 18px; font-size: 26px; }
.lightbox-prev { left: 16px; top: 50%; margin-top: -23px; }
.lightbox-next { right: 16px; top: 50%; margin-top: -23px; }
.lightbox-count {
  position: absolute;
  left: 50%;
  bottom: 20px;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, .7);
  font-size: 13px;
  letter-spacing: .04em;
}
body.lb-open { overflow: hidden; }

@media (max-width: 820px) {
  .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lightbox-prev { left: 8px; }
  .lightbox-next { right: 8px; }
}
@media (max-width: 560px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .lightbox-btn { width: 40px; height: 40px; }
}
/* 筛选隐藏（覆盖 flex/grid 的 display） */
[hidden] { display: none !important; }
/* ---------- 功能可编辑 ---------- */
.section-editable { padding-top: clamp(6px, 1.4vw, 18px); }
.editable-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}
.edit-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 20px 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
}
.edit-card:hover {
  transform: translateY(-3px);
  border-color: #c7e3de;
  box-shadow: 0 22px 42px -30px rgba(8, 48, 46, .45);
}
.edit-icon {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: var(--teal-50);
  color: var(--teal-700);
}
.edit-body h3 { margin: 2px 0 6px; font-size: 15.5px; font-weight: 700; color: var(--ink-900); }
.edit-body p { margin: 0; font-size: 13.5px; line-height: 1.65; color: var(--muted); }
.editable-tip {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--muted);
}
.editable-tip .ico { color: var(--teal-500); flex: none; }

/* ---------- 一次授权，永久使用 ---------- */
.section-license { padding-top: clamp(10px, 2vw, 26px); }
.license-card {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: clamp(26px, 3.4vw, 44px);
  border: 1px solid #cfe8e3;
  border-radius: 26px;
  background:
    radial-gradient(90% 120% at 0% 0%, #eafaf7 0%, rgba(234, 250, 247, 0) 62%),
    radial-gradient(80% 120% at 100% 100%, #fdf3e6 0%, rgba(253, 243, 230, 0) 58%),
    #fbfffe;
}
.license-title {
  margin: 12px 0 0;
  font-size: clamp(24px, 2.9vw, 34px);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink-900);
}
.license-desc {
  margin: 14px 0 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-700);
}
.license-main .btn { margin-top: 20px; }
.license-points { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.license-points li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, .78);
  border: 1px solid #dcecea;
  border-radius: 15px;
}
.license-badge {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--teal-500);
  color: #fff;
}
.license-points b { display: block; font-size: 14.5px; color: var(--ink-900); }
.license-points li > div > span { display: block; margin-top: 4px; font-size: 13px; line-height: 1.6; color: var(--muted); }
.license-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}
.license-note .ico { margin-top: 2px; color: var(--teal-500); flex: none; }

@media (max-width: 980px) {
  .editable-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .license-card { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .editable-grid { grid-template-columns: 1fr; gap: 12px; margin-top: 24px; }
  .edit-card { padding: 16px; }
  .license-points li { padding: 12px 14px; }
}