/* ==========================================================================
   驰联信 Chriplink 官网首页 · 全新设计系统
   风格：深藏青零信任安全风（Trust & Authority）
   原则：无障碍达标（对比度 ≥ 4.5:1）、SVG 图标、响应式、prefers-reduced-motion
   ========================================================================== */

:root {
  /* 色板 */
  --navy-950: #070c1a;
  --navy-900: #0a1122;
  --navy-800: #101a33;
  --navy-700: #16233f;

  --ink: #10192e;
  --text: #33415c;
  --muted: #5b6b84;
  --faint: #8a97ad;

  --line: #e4e9f2;
  --line-strong: #d3dbe8;
  --bg: #ffffff;
  --bg-tint: #f4f7fb;

  --brand-700: #0552a4;
  --brand-600: #0866c6;
  --brand-500: #1178e0;
  --accent: #4cc3ff;      /* 深色背景上的强调色 */
  --accent-soft: #7fd8ff;

  --ok: #2fbf8f;
  --warn: #f5a524;

  --shadow-sm: 0 1px 2px rgba(16, 25, 46, .06), 0 2px 8px rgba(16, 25, 46, .06);
  --shadow-md: 0 6px 24px rgba(16, 25, 46, .1);
  --shadow-lg: 0 20px 50px rgba(7, 12, 26, .35);

  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 18px;

  --header-h: 72px;

  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Microsoft YaHei",
               -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 基础 ---------- */

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

h1, h2, h3, h4 {
  color: var(--ink);
  line-height: 1.3;
  font-weight: 700;
}

svg {
  flex-shrink: 0;
}

.container {
  width: min(1200px, 100% - 48px);
  margin-inline: auto;
}

/* 可见焦点（键盘导航） */
:focus-visible {
  outline: 3px solid rgba(8, 102, 198, .65);
  outline-offset: 2px;
  border-radius: 4px;
}

.hero :focus-visible,
.section--dark :focus-visible,
.site-footer :focus-visible,
.mobile-drawer :focus-visible {
  outline-color: rgba(76, 195, 255, .85);
}

.skip-link {
  position: fixed;
  top: -60px;
  left: 16px;
  z-index: 2000;
  padding: 10px 18px;
  background: var(--navy-900);
  color: #fff;
  border-radius: 0 0 10px 10px;
  transition: top .2s;
}

.skip-link:focus {
  top: 0;
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease,
              border-color .2s ease, color .2s ease, filter .2s ease;
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn-lg {
  padding: 14px 30px;
  font-size: 16px;
  border-radius: 12px;
}

.btn-sm {
  padding: 9px 18px;
  font-size: 14px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
  color: #fff;
  box-shadow: 0 8px 22px rgba(8, 102, 198, .32);
}

.btn-primary:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(8, 102, 198, .4);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-ghost {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .32);
  background: rgba(255, 255, 255, .04);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .5);
}

.btn-light {
  background: #fff;
  color: var(--brand-700);
}

.btn-light:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(3, 12, 32, .35);
}

.btn-ghost-light {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .38);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, .1);
}

.btn-outline {
  color: var(--brand-600);
  border: 1px solid var(--brand-600);
  background: transparent;
}

.btn-outline:hover {
  background: var(--brand-600);
  color: #fff;
  transform: translateY(-1px);
}

/* ---------- 头部导航 ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(7, 12, 26, .78);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand-logo {
  height: 42px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: .95;
}

.main-nav {
  margin-left: auto;
}

.main-nav > ul {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav > ul > li {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 26px 14px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(230, 239, 250, .8);
  position: relative;
  transition: color .2s;
}

.nav-link:hover {
  color: #fff;
}

.nav-link.is-active {
  color: #fff;
  font-weight: 600;
}

.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 18px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--brand-500));
}

.caret {
  width: 15px;
  height: 15px;
  opacity: .7;
  transition: transform .25s;
}

.has-sub:hover .caret,
.has-sub:focus-within .caret {
  transform: rotate(180deg);
}

/* 下拉面板 */
.dropdown {
  position: absolute;
  top: calc(100% - 6px);
  left: 50%;
  translate: -50% 0;
  width: 320px;
  padding: 10px;
  background: rgba(10, 17, 34, .96);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .22s ease, transform .22s ease, visibility .22s;
}

.dropdown--sm {
  width: 264px;
}

.has-sub:hover .dropdown,
.has-sub:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: 11px 14px;
  border-radius: 10px;
  transition: background-color .18s;
}

.dropdown a b {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: rgba(238, 245, 253, .94);
}

.dropdown a span {
  display: block;
  margin-top: 1px;
  font-size: 12.5px;
  color: rgba(180, 200, 224, .62);
}

.dropdown a:hover {
  background: rgba(76, 195, 255, .1);
}

.header-cta {
  display: flex;
  align-items: center;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  color: #fff;
  margin-left: auto;
}

.menu-toggle svg {
  width: 26px;
  height: 26px;
}

.menu-toggle .icon-close {
  display: none;
}

body.nav-open .menu-toggle .icon-menu {
  display: none;
}

body.nav-open .menu-toggle .icon-close {
  display: block;
}

/* ---------- 移动端抽屉 ---------- */

.drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background: rgba(4, 8, 18, .62);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity .28s;
}

.drawer-backdrop.is-open {
  opacity: 1;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 1200;
  width: min(330px, 88vw);
  padding: calc(var(--header-h) + 12px) 26px 32px;
  background: var(--navy-900);
  border-left: 1px solid rgba(255, 255, 255, .08);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform .3s cubic-bezier(.32, .72, .3, 1);
}

.mobile-drawer.is-open {
  transform: translateX(0);
}

.drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 15px 2px;
  font-size: 16px;
  font-weight: 500;
  color: rgba(233, 241, 251, .92);
  border-bottom: 1px solid rgba(255, 255, 255, .07);
  text-align: left;
}

.drawer-toggle .caret {
  transition: transform .25s;
}

.drawer-group.is-open .drawer-toggle .caret {
  transform: rotate(180deg);
}

.drawer-sub {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .3s ease;
}

.drawer-group.is-open .drawer-sub {
  grid-template-rows: 1fr;
}

.drawer-sub-inner {
  overflow: hidden;
  min-height: 0;
}

.drawer-sub-inner a {
  display: block;
  padding: 11px 0 11px 16px;
  font-size: 14.5px;
  color: rgba(197, 214, 235, .75);
  border-left: 2px solid rgba(76, 195, 255, .25);
  margin-left: 4px;
}

.drawer-sub-inner a:first-child {
  padding-top: 6px;
}

.drawer-sub-inner a:last-child {
  padding-bottom: 14px;
}

.drawer-cta {
  width: 100%;
  margin-top: 26px;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: calc(var(--header-h) + 84px) 0 96px;
  background:
    radial-gradient(900px 460px at 82% -10%, rgba(56, 189, 248, .16), transparent 65%),
    radial-gradient(760px 520px at 6% 108%, rgba(37, 99, 235, .22), transparent 62%),
    linear-gradient(180deg, #0a1122 0%, #0b1329 58%, #0a1122 100%);
  color: #fff;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(148, 197, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 197, 255, .055) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(ellipse 82% 72% at 50% 32%, #000 26%, transparent 76%);
  mask-image: radial-gradient(ellipse 82% 72% at 50% 32%, #000 26%, transparent 76%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}

.hero-glow--cyan {
  top: -140px;
  right: 6%;
  width: 460px;
  height: 460px;
  background: rgba(56, 189, 248, .17);
}

.hero-glow--blue {
  bottom: -180px;
  left: -80px;
  width: 520px;
  height: 520px;
  background: rgba(37, 99, 235, .22);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.06fr .94fr;
  align-items: center;
  gap: 56px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(76, 195, 255, .34);
  background: rgba(76, 195, 255, .09);
  color: var(--accent-soft);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: .04em;
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

.hero-title {
  margin: 26px 0 20px;
  font-size: clamp(38px, 4.6vw, 58px);
  line-height: 1.18;
  letter-spacing: .01em;
  color: #fff;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(92deg, var(--accent-soft) 8%, #b7e6ff 52%, var(--accent) 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-desc {
  max-width: 560px;
  font-size: 16.5px;
  color: rgba(222, 233, 247, .78);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, auto);
  justify-content: start;
  gap: 40px;
  margin-top: 52px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}

.stat dt {
  font-size: 30px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.stat dt .stat-num {
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, #fff, #9fd8ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat dd {
  margin-top: 2px;
  font-size: 13px;
  color: rgba(197, 214, 235, .68);
}

/* 身份星轨视觉 */
.hero-visual {
  display: flex;
  justify-content: center;
}

.orbit {
  position: relative;
  width: min(470px, 100%);
  aspect-ratio: 1;
}

.orbit-ring {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.orbit-ring--1 {
  inset: 12%;
  border: 1px dashed rgba(148, 197, 255, .3);
}

.orbit-ring--2 {
  inset: 0;
  border: 1px solid rgba(148, 197, 255, .12);
}

.orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
  translate: -50% -50%;
  width: 31%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 26%, rgba(76, 195, 255, .32), transparent 58%),
    linear-gradient(160deg, #14224a, #0a1122 78%);
  border: 1px solid rgba(76, 195, 255, .4);
  box-shadow:
    0 0 0 10px rgba(56, 189, 248, .06),
    0 0 60px rgba(56, 189, 248, .28),
    inset 0 0 30px rgba(56, 189, 248, .12);
}

.orbit-core svg {
  width: 44%;
  height: 44%;
  color: var(--accent-soft);
}

.orbit-core-pulse {
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 1px solid rgba(76, 195, 255, .55);
  animation: core-pulse 3.2s ease-out infinite;
}

@keyframes core-pulse {
  0% {
    transform: scale(1);
    opacity: .8;
  }
  70%,
  100% {
    transform: scale(1.75);
    opacity: 0;
  }
}

.orbit-node {
  position: absolute;
  left: var(--x);
  top: var(--y);
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid rgba(140, 200, 255, .34);
  background: rgba(17, 28, 56, .78);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: .06em;
  color: #cfe8ff;
  animation: node-float 6s ease-in-out var(--d, 0s) infinite;
}

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

.float-chip {
  position: absolute;
  left: var(--x);
  top: var(--y);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, .16);
  background: rgba(255, 255, 255, .08);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-size: 13px;
  color: #eaf4ff;
  white-space: nowrap;
  box-shadow: 0 12px 30px rgba(4, 10, 24, .45);
  animation: node-float 7s ease-in-out var(--d, 0s) infinite;
}

.float-chip svg {
  width: 17px;
  height: 17px;
}

.float-chip--ok svg {
  color: var(--ok);
}

.float-chip--warn svg {
  color: var(--warn);
}

/* ---------- 行业信任条 ---------- */

.industries {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.industries-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  padding: 22px 0;
}

.industries-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--faint);
}

.industries-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.industries-list li {
  padding: 7px 20px;
  border-radius: 999px;
  background: var(--bg-tint);
  border: 1px solid var(--line);
  font-size: 14px;
  font-weight: 600;
  color: #3c4c68;
}

/* ---------- 通用 Section ---------- */

.section {
  padding: 96px 0;
}

.section--tint {
  background: var(--bg-tint);
}

.section--dark {
  background:
    radial-gradient(720px 420px at 88% 0%, rgba(56, 189, 248, .1), transparent 60%),
    linear-gradient(180deg, #0a1122, #0c152b);
  color: rgba(226, 236, 248, .8);
}

.section--dark h2 {
  color: #fff;
}

.section-head {
  max-width: 680px;
  margin: 0 auto 60px;
  text-align: center;
}

.kicker {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .22em;
  color: var(--brand-600);
  margin-bottom: 12px;
}

.kicker--onDark {
  color: var(--accent);
}

.section-head h2 {
  font-size: clamp(28px, 3.2vw, 38px);
}

.section-head p {
  margin-top: 14px;
  font-size: 16px;
  color: var(--muted);
}

.section--dark .section-head p {
  color: rgba(203, 218, 238, .72);
}

.section-more {
  text-align: center;
  margin-top: 48px;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

/* ---------- 核心优势卡片 ---------- */

.adv-card {
  padding: 34px 30px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.adv-card:hover {
  transform: translateY(-5px);
  border-color: rgba(8, 102, 198, .35);
  box-shadow: var(--shadow-md);
}

.adv-icon {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 15px;
  margin-bottom: 22px;
}

.adv-icon svg {
  width: 28px;
  height: 28px;
}

.adv-icon--cyan {
  background: #e0f6ff;
  color: #0784ad;
}

.adv-icon--blue {
  background: #e3eeff;
  color: var(--brand-600);
}

.adv-icon--deep {
  background: #e9efff;
  color: #3452c9;
}

.adv-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.adv-card p {
  font-size: 14.5px;
  color: var(--muted);
}

/* ---------- 产品矩阵 Bento ---------- */

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

.p-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.p-card:hover {
  transform: translateY(-5px);
  border-color: rgba(8, 102, 198, .32);
  box-shadow: var(--shadow-md);
}

.p-card--wide {
  grid-column: span 2;
  flex-direction: row;
  align-items: stretch;
}

.p-card--wide .p-card-body {
  flex: 1.05;
  justify-content: center;
}

.p-card--wide .p-card-media {
  flex: 1;
  min-height: 100%;
}

.p-card-media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.p-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.p-card:hover .p-card-media img {
  transform: scale(1.045);
}

.p-card-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 26px 26px 28px;
}

.p-tag {
  padding: 4px 12px;
  border-radius: 999px;
  background: #e3eeff;
  color: var(--brand-600);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
}

.p-card h3 {
  font-size: 20px;
}

.p-card-body > p {
  font-size: 14.5px;
  color: var(--muted);
}

.p-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-600);
}

.p-link svg {
  width: 16px;
  height: 16px;
  transition: transform .22s ease;
}

.p-link:hover svg {
  transform: translateX(4px);
}

/* CTA 磁贴 */
.p-card--cta {
  justify-content: center;
  gap: 12px;
  padding: 30px 28px;
  background:
    radial-gradient(340px 220px at 90% -10%, rgba(56, 189, 248, .28), transparent 65%),
    linear-gradient(165deg, #12234d, #0a1122 72%);
  border: 1px solid rgba(255, 255, 255, .1);
  color: rgba(222, 233, 247, .8);
}

.p-card--cta h3 {
  color: #fff;
  font-size: 19px;
}

.p-card--cta p {
  font-size: 13.5px;
  color: rgba(203, 218, 238, .72);
}

.p-card--cta .btn {
  margin-top: 8px;
}

/* ---------- 解决方案（深色） ---------- */

.sol-card {
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .09);
  transition: transform .25s ease, border-color .25s ease, background-color .25s ease;
}

.sol-card:hover {
  transform: translateY(-5px);
  border-color: rgba(76, 195, 255, .42);
  background: rgba(255, 255, 255, .065);
}

.sol-icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 14px;
  margin-bottom: 20px;
  background: rgba(76, 195, 255, .13);
  color: var(--accent);
}

.sol-icon svg {
  width: 26px;
  height: 26px;
}

.sol-card h3 {
  color: #fff;
  font-size: 19px;
  margin-bottom: 10px;
}

.sol-card > p {
  font-size: 14.5px;
  color: rgba(203, 218, 238, .72);
}

.sol-list {
  margin-top: 16px;
  display: grid;
  gap: 8px;
}

.sol-list li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  color: rgba(203, 218, 238, .78);
}

.sol-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.sol-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-soft);
}

.sol-link svg {
  width: 16px;
  height: 16px;
  transition: transform .22s ease;
}

.sol-link:hover svg {
  transform: translateX(4px);
}

/* ---------- 成功案例 ---------- */

.case-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.case-card:hover {
  transform: translateY(-5px);
  border-color: rgba(8, 102, 198, .32);
  box-shadow: var(--shadow-md);
}

.case-media {
  position: relative;
  aspect-ratio: 551 / 306;
  overflow: hidden;
}

.case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.case-card:hover .case-media img {
  transform: scale(1.04);
}

.case-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(8, 17, 34, .72);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: #9fdcff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
}

.case-body {
  padding: 24px 26px 28px;
}

.case-body h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.case-body p {
  font-size: 14px;
  color: var(--muted);
}

/* ---------- CTA 横幅 ---------- */

.cta-band {
  position: relative;
  padding: 76px 0;
  background:
    radial-gradient(560px 300px at 12% 0%, rgba(56, 189, 248, .22), transparent 62%),
    radial-gradient(620px 340px at 92% 110%, rgba(37, 99, 235, .3), transparent 60%),
    linear-gradient(120deg, #0a1122, #0d2b66);
  color: #fff;
  overflow: hidden;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  flex-wrap: wrap;
}

.cta-band h2 {
  color: #fff;
  font-size: clamp(24px, 3vw, 32px);
}

.cta-band p {
  margin-top: 10px;
  color: rgba(213, 228, 246, .78);
  font-size: 15.5px;
}

.cta-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---------- 页脚 ---------- */

.site-footer {
  background: var(--navy-950);
  color: rgba(219, 230, 245, .72);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1.2fr 1fr auto;
  gap: 44px;
  padding: 72px 0 56px;
}

.footer-logo {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
  margin-bottom: 20px;
}

.footer-brand > p {
  max-width: 380px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(197, 214, 235, .6);
}

.footer-contact {
  margin-top: 22px;
  display: grid;
  gap: 12px;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

.footer-contact svg {
  width: 17px;
  height: 17px;
  color: var(--accent);
}

.footer-contact a:hover {
  color: #fff;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-col li + li {
  margin-top: 11px;
}

.footer-col a {
  font-size: 14px;
  color: rgba(197, 214, 235, .62);
  transition: color .2s;
}

.footer-col a:hover {
  color: var(--accent-soft);
}

.footer-app {
  min-width: 0;
}

.footer-qr {
  width: fit-content;
  padding: 7px;
  background: #fff;
  border-radius: 12px;
}

.footer-qr img {
  width: 104px;
  height: 104px;
  display: block;
}

.footer-qr-note {
  margin-top: 10px;
  font-size: 12.5px;
  color: rgba(197, 214, 235, .6);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, .08);
  font-size: 13px;
  color: rgba(170, 190, 216, .5);
}

.footer-bottom a:hover {
  color: var(--accent-soft);
}

/* ---------- 滚动进入动效 ---------- */

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s cubic-bezier(.22, .61, .36, 1) var(--d, 0s),
              transform .7s cubic-bezier(.22, .61, .36, 1) var(--d, 0s);
}

.reveal.in-view {
  opacity: 1;
  transform: none;
}

/* ---------- 无动画偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 1120px) {
  .nav-link {
    padding: 26px 10px;
  }
}

@media (max-width: 1024px) {
  .main-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .hero {
    padding-bottom: 72px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .hero-visual {
    order: 2;
  }

  .hero-stats {
    gap: 28px 40px;
  }

  .bento {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: 1fr;
    max-width: 640px;
    margin-inline: auto;
  }

  .bento .grid-3 {
    max-width: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 44px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  :root {
    --header-h: 64px;
  }

  .brand-logo {
    height: 36px;
  }

  .container {
    width: min(1200px, 100% - 40px);
  }

  .section {
    padding: 68px 0;
  }

  .hero {
    padding-top: calc(var(--header-h) + 56px);
  }

  .hero-title {
    font-size: clamp(32px, 8.4vw, 40px);
  }

  .hero-actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px 24px;
  }

  .stat dt {
    font-size: 25px;
  }

  .orbit {
    width: min(360px, 92%);
  }

  .float-chip {
    font-size: 12px;
    padding: 8px 11px;
  }

  .bento {
    grid-template-columns: 1fr;
  }

  .p-card--wide {
    grid-column: auto;
    flex-direction: column;
  }

  .p-card--wide .p-card-media {
    order: -1;
    aspect-ratio: 16 / 9;
  }

  .industries-inner {
    gap: 14px;
    padding: 18px 0;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-actions {
    width: 100%;
  }

  .cta-actions .btn {
    flex: 1;
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 56px 0 44px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ---------- 产品更新与校验 ---------- */

.release-list {
  display: grid;
  gap: 16px;
}

.release-card {
  padding: 22px 26px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.release-file {
  font-size: 14px;
  color: var(--text);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.release-file-label {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--faint);
}

.release-file code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
  font-size: 14px;
  font-weight: 600;
  word-break: break-all;
  color: var(--ink);
}

.release-hash {
  margin-top: 12px;
  width: fit-content;
  max-width: 100%;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 10px;
  padding: 10px 14px;
  background: var(--bg-tint);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.release-hash-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--muted);
}

.release-hash-value {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
  font-size: 14px;
  color: var(--ink);
  word-break: break-all;
}

.release-copy {
  flex-shrink: 0;
  padding: 4px 14px;
  font-size: 12px;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  cursor: pointer;
  transition: color .2s, border-color .2s;
}

.release-copy:hover {
  color: var(--brand-600);
  border-color: var(--brand-500);
}

.release-copy.is-copied {
  color: var(--ok);
  border-color: var(--ok);
}

@media (max-width: 760px) {
  .release-card {
    padding: 18px 16px;
  }
}