/* ==========================================================================
   湖北壹点启航科技有限公司官网 - 主样式
   设计语言：深空蓝 · 清爽科技 · 轻量化商务
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  --navy-950: #041226;
  --navy-900: #071c3a;
  --navy-800: #0b2a52;
  --navy-700: #10407a;
  --blue: #1769ff;
  --blue-600: #0b55e8;
  --blue-700: #0a44bd;
  --blue-tint: #8fb6ff;
  /* 配色已收敛为深蓝 / 蓝 / 白三色系；保留变量名兼容既有引用 */
  --cyan: #1769ff;
  --ink: #13283f;
  --ink-2: #3d5068;
  --muted: #6b7c93;
  --line: #e3eaf3;
  --bg: #f4f7fb;
  --bg-soft: #eef3fa;
  --white: #fff;
  --danger: #d93026;
  --success: #15a05f;

  --grad-primary: linear-gradient(135deg, #1769ff 0%, #0b55e8 100%);
  --grad-navy: linear-gradient(150deg, #0b2a52 0%, #071c3a 55%, #041226 100%);
  --shadow-sm: 0 4px 14px rgba(9, 34, 66, .06);
  --shadow-md: 0 14px 40px rgba(9, 34, 66, .10);
  --shadow-lg: 0 24px 70px rgba(6, 24, 48, .16);
  --radius: 14px;
  --radius-lg: 20px;
  --header-h: 72px;
  --topbar-h: 36px;
  --container: 1200px;
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: clip; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body.page-inner { padding-top: calc(var(--topbar-h) + var(--header-h)); }
h1, h2, h3, h4 { margin: 0; font-weight: 700; color: var(--navy-900); line-height: 1.35; }
p { margin: 0; }
a { color: var(--blue-600); text-decoration: none; transition: color .2s; }
a:hover { color: var(--blue-700); }
img { max-width: 100%; display: block; border: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 4px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.narrow-body { max-width: 860px; }
.narrow-body-sm { max-width: 640px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--blue); color: #fff; padding: 10px 18px; border-radius: 0 0 8px 8px;
}
.skip-link:focus { left: 16px; }

.ico { width: 22px; height: 22px; flex: none; }
.ico-sm { width: 16px; height: 16px; }

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 26px; border-radius: 10px; font-size: 15px; font-weight: 600;
  letter-spacing: .5px; white-space: nowrap; transition: all .25s ease;
  border: 1.5px solid transparent;
}
.btn-lg { padding: 14px 34px; font-size: 16px; border-radius: 12px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--grad-primary); color: #fff; box-shadow: 0 10px 26px rgba(23, 105, 255, .32); }
.btn-primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 16px 34px rgba(23, 105, 255, .4); }
.btn-ghost { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .55); color: #fff; backdrop-filter: blur(4px); }
.btn-ghost:hover { background: rgba(255, 255, 255, .22); color: #fff; }
.btn-outline { border-color: var(--line); color: var(--navy-800); background: #fff; }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.btn-outline-light { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,.12); color: #fff; }

/* ---------- 区块标题 ---------- */
.section { padding: 88px 0; }
.section-tint { background: var(--bg); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 44px; }
.section-head.center { justify-content: center; text-align: center; }
.section-head.center > div { max-width: 720px; }
.section-eyebrow {
  font-size: 13px; font-weight: 700; letter-spacing: 3.5px;
  color: var(--blue); text-transform: uppercase; margin-bottom: 12px;
}
.section-eyebrow.text-light { color: var(--blue); }
.section-title { font-size: clamp(26px, 3vw, 34px); letter-spacing: .5px; }
.section-title.left { text-align: left; }
.section-sub { margin-top: 14px; color: var(--muted); font-size: 16px; }
.head-more { display: inline-flex; align-items: center; gap: 6px; color: var(--blue-600); font-weight: 600; font-size: 15px; flex: none; }
.head-more:hover { gap: 10px; }
.plain-paragraph { color: var(--ink-2); font-size: 16.5px; margin-top: 20px; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--blue-600); font-weight: 600; font-size: 15px;
}
.link-arrow .ico { transition: transform .2s; }
.link-arrow:hover .ico { transform: translateX(4px); }

/* ---------- 顶部条 ---------- */
.topbar {
  background: var(--navy-950);
  color: rgba(255, 255, 255, .78);
  font-size: 13px; height: var(--topbar-h);
  position: relative; z-index: 200;
}
.topbar-inner { display: flex; align-items: center; gap: 28px; height: var(--topbar-h); }
.topbar-item { display: inline-flex; align-items: center; gap: 6px; }
.topbar .ico { color: var(--blue-tint); }

/* ---------- 导航栏 ---------- */
.site-header {
  position: fixed; top: var(--topbar-h); left: 0; right: 0; z-index: 150;
  height: var(--header-h);
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  transition: top .25s, background .3s, box-shadow .3s, border-color .3s;
}
.site-header.is-stuck { top: 0; box-shadow: 0 10px 34px rgba(7, 28, 58, .1); }
.home .topbar { position: absolute; top: 0; left: 0; right: 0; background: rgba(3, 14, 29, .42); z-index: 200; }
.home .site-header { position: absolute; background: transparent; border-bottom-color: transparent; }
.home .site-header.is-stuck {
  position: fixed; background: rgba(255, 255, 255, .96);
  border-bottom-color: var(--line); box-shadow: 0 10px 34px rgba(7, 28, 58, .1);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 20px; }

.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--navy-900); }
.brand:hover { color: var(--navy-900); }
.brand-logo { flex: none; display: block; border-radius: 24%; object-fit: cover; filter: drop-shadow(0 6px 14px rgba(23, 105, 255, .3)); }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-name { font-size: 19px; letter-spacing: 1px; }
.brand-slogan { font-size: 11.5px; letter-spacing: 2px; color: var(--muted); margin-top: 4px; white-space: nowrap; }

.main-nav { display: flex; align-items: center; gap: 30px; flex: 1; justify-content: center; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-list a {
  display: block; padding: 9px 13px; font-size: 15.5px; font-weight: 500;
  color: var(--ink-2); border-radius: 8px; position: relative; white-space: nowrap;
}
.nav-list a::after {
  content: ""; position: absolute; left: 13px; right: 13px; bottom: 2px; height: 2px;
  background: var(--grad-primary); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform .25s;
}
.nav-list a:hover { color: var(--blue); }
.nav-list a:hover::after, .nav-list a.active::after { transform: scaleX(1); }
.nav-list a.active { color: var(--blue-700); font-weight: 700; }
.nav-cta { padding: 10px 22px; }

/* 首页透明导航上的浅色文字 */
.home .site-header:not(.is-stuck) .brand-name { color: #fff; }
.home .site-header:not(.is-stuck) .brand-slogan { color: rgba(255, 255, 255, .72); }
.home .site-header:not(.is-stuck) .nav-list a { color: rgba(255, 255, 255, .9); }
.home .site-header:not(.is-stuck) .nav-list a:hover,
.home .site-header:not(.is-stuck) .nav-list a.active { color: #fff; }

.nav-toggle { display: none; width: 44px; height: 44px; position: relative; z-index: 260; padding: 10px; }
.nav-toggle span {
  display: block; width: 24px; height: 2.2px; background: var(--navy-900);
  margin: 5px auto; border-radius: 2px; transition: transform .3s, opacity .3s, background .3s;
}
.home .site-header:not(.is-stuck) .nav-toggle span { background: #fff; }
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7.2px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7.2px) rotate(-45deg); }
body.nav-open .nav-toggle span { background: var(--navy-900) !important; }

/* ==========================================================================
   首页 HERO
   ========================================================================== */
.hero {
  position: relative; min-height: 540px; height: clamp(540px, 74vh, 720px);
  display: flex; align-items: center; overflow: hidden; color: #fff;
  background: var(--navy-950);
}
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center 38%; animation: heroZoom 14s ease-out both; }
@keyframes heroZoom { from { transform: scale(1.06); } to { transform: scale(1); } }
.hero-mask {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 18, 38, .8) 0%, rgba(5, 24, 50, .5) 40%, rgba(5, 24, 50, .06) 68%, rgba(5, 24, 50, .16) 100%),
    linear-gradient(0deg, rgba(4, 18, 38, .55) 0%, rgba(4, 18, 38, .04) 48%, rgba(4, 18, 38, .12) 100%);
}
.hero-grid-lines { display: none; }
.hero-content {
  position: relative; z-index: 2; padding-top: 52px; max-width: 600px;
  margin-left: 0;
  display: flex; flex-direction: column; align-items: flex-start;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 12.5px; letter-spacing: 3px; font-weight: 600; color: #cfe2fb;
  border: 1px solid rgba(159, 204, 255, .35); background: rgba(10, 40, 80, .4);
  padding: 6px 15px; border-radius: 999px; margin-bottom: 20px;
  animation: fadeUp .8s .1s both;
}
.hero-eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue-tint); box-shadow: 0 0 12px var(--blue-tint); }
.hero-title {
  color: #fff; font-size: clamp(27px, 3.2vw, 42px); line-height: 1.3;
  letter-spacing: 1px; font-weight: 700; text-shadow: 0 3px 24px rgba(0,0,0,.28);
  animation: fadeUp .8s .22s both;
}
.hero-subtitle {
  margin-top: 15px; font-size: 16px; line-height: 1.8; color: rgba(235, 244, 255, .88);
  letter-spacing: .5px; max-width: 520px;
  animation: fadeUp .8s .34s both;
}
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; animation: fadeUp .8s .46s both; }
.hero-points {
  display: flex; flex-wrap: wrap; gap: 12px 26px; margin-top: 30px;
  padding-top: 22px; border-top: 1px solid rgba(255,255,255,.22);
  width: 100%; max-width: 560px; animation: fadeUp .8s .58s both;
}
.hero-points li {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; color: rgba(238, 246, 255, .92); letter-spacing: .5px;
}
.hero-points .ico { color: var(--blue-tint); flex: none; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }

/* ==========================================================================
   简介 & 优势
   ========================================================================== */
.section-intro { text-align: center; }
.intro-text {
  max-width: 920px; margin: 18px auto 0;
  font-size: 16.5px; color: var(--ink-2);
}
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 52px; }
.adv-grid-3 { grid-template-columns: repeat(3, 1fr); }
.adv-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 34px 26px 30px; text-align: left;
  transition: transform .3s, box-shadow .3s, border-color .3s;
  overflow: hidden;
}
.adv-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: var(--grad-primary); transform: scaleX(0); transform-origin: left;
  transition: transform .35s;
}
.adv-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: transparent; }
.adv-card:hover::before { transform: scaleX(1); }
.adv-icon {
  display: inline-flex; width: 56px; height: 56px; border-radius: 14px;
  background: rgba(23,105,255,.1);
  color: var(--blue); align-items: center; justify-content: center; margin-bottom: 20px;
}
.adv-icon .ico { width: 28px; height: 28px; }
.adv-card h3 { font-size: 19px; margin-bottom: 10px; }
.adv-card p { color: var(--muted); font-size: 14.5px; }

/* ==========================================================================
   轮播 + 资讯
   ========================================================================== */
.section-showcase { background: var(--bg); }
.showcase-grid { display: grid; grid-template-columns: 7fr 3fr; gap: 24px; align-items: start; }
.showcase-grid > * { min-width: 0; }
/* 桌面端：轮播图偏上、最新资讯偏下 */
@media (min-width: 901px) {
  .showcase-grid .carousel { transform: translateY(-22px); }
  .showcase-grid .news-panel { margin-top: 30px; }
}

.carousel {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-md); background: var(--navy-950);
  width: 100%; max-width: 100%;
}
.carousel-viewport { position: relative; width: 100%; aspect-ratio: 16/9; }
.carousel-slide {
  position: absolute; inset: 0; opacity: 0; visibility: hidden;
  transition: opacity .7s ease, visibility .7s; display: block; color: #fff;
}
.carousel-slide.is-active { opacity: 1; visibility: visible; }
.carousel-slide img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.02); transition: transform 6s ease; }
.carousel-slide.is-active img { transform: scale(1); }
.carousel-mask {
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(3,13,28,.92) 0%, rgba(3,13,28,.35) 42%, transparent 68%);
}
.carousel-caption {
  position: absolute; left: 38px; right: 38px; bottom: 34px; z-index: 2;
  max-width: 78%; display: flex; flex-direction: column;
}
.carousel-index { font-size: 13px; letter-spacing: 2px; color: var(--blue-tint); font-weight: 700; margin-bottom: 8px; }
.carousel-caption strong { font-size: clamp(20px, 2.2vw, 27px); color: #fff; font-weight: 700; text-shadow: 0 2px 14px rgba(0,0,0,.4); }
.carousel-caption em { font-style: normal; color: rgba(235, 244, 255, .85); font-size: 14.5px; margin-top: 8px; }
.carousel-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(8, 26, 52, .42); border: 1px solid rgba(255,255,255,.35); color: #fff;
  display: flex; align-items: center; justify-content: center;
  transition: background .25s, opacity .25s; backdrop-filter: blur(4px);
}
.carousel-arrow:hover { background: var(--blue); border-color: var(--blue); }
.carousel-arrow.prev { left: 18px; }
.carousel-arrow.next { right: 18px; }
.carousel-dots { position: absolute; right: 34px; bottom: 40px; z-index: 3; display: flex; gap: 9px; }
.carousel-dot {
  width: 22px; height: 4px; border-radius: 4px; background: rgba(255,255,255,.4);
  transition: background .25s, width .25s;
}
.carousel-dot.is-active { background: #fff; width: 34px; }

.news-panel {
  background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm);
  padding: 26px 24px 18px; display: flex; flex-direction: column;
}
.news-panel-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid var(--line); margin-bottom: 6px; }
.news-panel-head h3 { display: flex; align-items: center; font-size: 20px; }
.news-panel-bar { width: 4px; height: 19px; border-radius: 3px; background: var(--grad-primary); margin-right: 10px; }
.news-panel-head a { font-size: 14px; font-weight: 500; }
.news-mini-list { display: flex; flex-direction: column; }
.news-mini-list a {
  display: flex; gap: 15px; padding: 15px 4px; border-bottom: 1px dashed var(--line);
  color: inherit;
}
.news-mini-list li:last-child a { border-bottom: 0; }
.news-date { flex: none; width: 52px; text-align: center; }
.news-date strong { display: block; font-size: 24px; color: var(--blue); line-height: 1.2; font-weight: 800; }
.news-date em { display: block; font-style: normal; font-size: 11px; color: var(--muted); margin-top: 2px; }
.news-mini-body { min-width: 0; }
.news-mini-title {
  display: block; font-size: 15px; font-weight: 600; color: var(--navy-900);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.news-mini-list a:hover .news-mini-title { color: var(--blue); }
.news-mini-summary {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  font-style: normal; color: var(--muted); font-size: 13px; line-height: 1.6; margin-top: 4px;
}
.pin-tag {
  display: inline-block; font-style: normal; font-size: 11px; font-weight: 700;
  color: #fff; background: var(--danger); border-radius: 4px; padding: 1px 6px;
  margin-right: 7px; vertical-align: 1px;
}

/* ==========================================================================
   两大业务
   ========================================================================== */
.biz-grid { display: flex; flex-direction: column; gap: 34px; }
.biz-card {
  display: grid; grid-template-columns: 1fr 1fr; align-items: stretch;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: box-shadow .3s, transform .3s;
}
.biz-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.biz-media { position: relative; min-height: 380px; overflow: hidden; }
.biz-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s; }
.biz-card:hover .biz-media img { transform: scale(1.05); }
.biz-index {
  position: absolute; top: 20px; left: 20px; font-size: 15px; font-weight: 800; letter-spacing: 2px;
  color: #fff; background: rgba(8, 28, 60, .55); border: 1px solid rgba(255,255,255,.4);
  padding: 5px 13px; border-radius: 999px; backdrop-filter: blur(4px);
}
.biz-body { padding: 44px 46px; display: flex; flex-direction: column; justify-content: center; }
.biz-tag { font-size: 12.5px; font-weight: 700; letter-spacing: 2.5px; color: var(--blue); }
.biz-body h3 { font-size: 25px; margin: 10px 0 14px; }
.biz-desc { color: var(--ink-2); font-size: 15.5px; }
.biz-list {
  display: grid; grid-template-columns: 1fr 1fr; gap: 9px 18px; margin-top: 20px;
}
.biz-list li {
  position: relative; padding-left: 22px; font-size: 14.5px; color: var(--ink-2);
}
.biz-list li::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 12px; height: 12px;
  background: var(--grad-primary); border-radius: 3px;
  clip-path: polygon(20% 50%, 0 70%, 45% 100%, 100% 22%, 82% 8%, 45% 62%);
}
.biz-values { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.biz-values span {
  font-size: 13px; color: var(--navy-800); background: var(--bg-soft);
  border: 1px solid var(--line); padding: 5px 14px; border-radius: 999px;
}
.biz-body .link-arrow { margin-top: 28px; }
.biz-card-reverse .biz-media { order: 2; }

/* ==========================================================================
   案例
   ========================================================================== */
.section-cases-preview { padding-bottom: 92px; }
.case-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.case-grid-page { grid-template-columns: repeat(3, 1fr); }
.case-card {
  display: flex; flex-direction: column; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; color: inherit;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.case-card:hover { color: inherit; transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: transparent; }
.case-media { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.case-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s; }
.case-card:hover .case-media img { transform: scale(1.06); }
.case-cat {
  position: absolute; left: 14px; top: 14px; z-index: 2;
  font-size: 12px; font-weight: 700; letter-spacing: .5px; color: #fff;
  padding: 4px 12px; border-radius: 999px;
}
.cat-soft { background: linear-gradient(135deg, #1769ff, #0b55e8); }
.cat-drone { background: linear-gradient(135deg, #0b2a52, #10407a); }
.case-body { padding: 22px 20px 24px; display: flex; flex-direction: column; flex: 1; }
.case-body h3 { font-size: 17px; margin-bottom: 9px; line-height: 1.5; }
.case-body p {
  color: var(--muted); font-size: 13.5px; line-height: 1.7; margin-bottom: 16px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; flex: 1;
}
.case-body .link-arrow { font-size: 14px; }

/* ==========================================================================
   CTA 保障带
   ========================================================================== */
.cta-band {
  position: relative; color: #fff; padding: 84px 0;
  background: var(--grad-navy); overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0; opacity: .55;
  background:
    radial-gradient(500px 240px at 12% 18%, rgba(23,105,255,.3), transparent 70%),
    radial-gradient(560px 300px at 88% 88%, rgba(23,105,255,.16), transparent 70%);
}
.cta-band .container { position: relative; z-index: 1; }
.cta-head { text-align: center; }
.cta-head h2 { color: #fff; font-size: clamp(26px, 3vw, 34px); }
.cta-head p { margin-top: 12px; color: rgba(235, 244, 255, .78); }
.guarantee-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px;
  margin: 52px 0 46px;
}
.guarantee-item {
  text-align: center; padding: 30px 18px;
  border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius);
  background: rgba(255,255,255,.05); transition: background .25s, transform .25s;
}
.guarantee-item:hover { background: rgba(255,255,255,.1); transform: translateY(-5px); }
.guarantee-icon {
  width: 58px; height: 58px; margin: 0 auto 16px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(23,105,255,.28); color: var(--blue-tint);
}
.guarantee-icon .ico { width: 28px; height: 28px; }
.guarantee-item strong { display: block; font-size: 17px; color: #fff; margin-bottom: 6px; }
.guarantee-item em { font-style: normal; font-size: 13.5px; color: rgba(220, 234, 250, .75); }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.cta-band-inner { padding: 56px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.cta-inner h2 { color: #fff; font-size: clamp(22px, 2.4vw, 28px); }
.cta-inner p { color: rgba(235, 244, 255, .8); margin-top: 6px; }

/* ==========================================================================
   页脚（实景 CTA 横幅 + 深色多栏）
   ========================================================================== */
.site-footer { background: var(--navy-950); color: rgba(214, 228, 245, .78); }

/* CTA 横幅 */
.footer-cta { position: relative; overflow: hidden; background: var(--navy-950); }
.footer-cta-bg { position: absolute; inset: 0; background: url("/assets/images/hero-real.jpg?v=20260916fix") center 42% / cover no-repeat; }
.footer-cta::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 18, 38, .94) 0%, rgba(5, 24, 50, .82) 42%, rgba(5, 24, 50, .5) 72%, rgba(5, 24, 50, .72) 100%),
    linear-gradient(0deg, rgba(4, 18, 38, .82) 0%, rgba(4, 18, 38, .12) 55%, rgba(4, 18, 38, .3) 100%);
}
.footer-cta-inner {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  padding: 72px 24px; flex-wrap: wrap;
}
.footer-cta-text { max-width: 640px; }
.footer-cta-text h2 {
  color: #fff; font-size: clamp(26px, 3vw, 38px); font-weight: 700;
  line-height: 1.35; letter-spacing: 2px;
}
.footer-cta-text p { margin-top: 14px; font-size: 16px; color: rgba(228, 239, 253, .85); letter-spacing: .5px; }
.footer-cta-actions { display: flex; gap: 14px; flex-wrap: wrap; flex: none; }
.btn-light { background: #fff; color: var(--navy-900); }
.btn-light:hover { background: #e6efff; color: var(--navy-900); }

/* 多栏主体 */
.footer-main { padding-top: 56px; }
.footer-grid {
  display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr 1fr;
  gap: 40px; padding: 0 24px 46px;
}
.brand-footer .brand-name { color: #fff; font-size: 17px; }
.brand-footer .brand-slogan { color: rgba(214, 228, 245, .6); font-size: 11px; letter-spacing: 1.5px; }
.footer-desc { margin-top: 18px; font-size: 14px; line-height: 1.9; color: rgba(214, 228, 245, .66); max-width: 340px; }
.footer-title { color: #fff; font-size: 15.5px; margin-bottom: 18px; position: relative; padding-bottom: 12px; }
.footer-title::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 2.5px;
  background: var(--blue); border-radius: 2px;
}
.footer-links a { color: rgba(214, 228, 245, .72); font-size: 14.5px; line-height: 2.1; display: inline-block; }
.footer-links a:hover { color: #fff; transform: translateX(4px); }
.footer-contact li { display: flex; gap: 11px; margin-bottom: 14px; font-size: 14px; line-height: 1.7; }
.footer-contact .ico { color: var(--blue-tint); margin-top: 3px; }
.footer-contact a { color: rgba(214, 228, 245, .72); }
.footer-contact a:hover { color: #fff; }

.footer-qr { display: flex; flex-direction: column; align-items: center; text-align: center; }
.footer-qr-code {
  width: 132px; height: 132px; border-radius: 12px; background: #fff; padding: 9px;
  box-shadow: 0 10px 30px rgba(0,0,0,.28);
}
.footer-qr-code img { width: 100%; height: 100%; }
.footer-qr-text { margin-top: 12px; font-size: 13px; line-height: 1.7; color: rgba(214, 228, 245, .68); }

.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; }
.footer-bottom-inner {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: 4px 16px; font-size: 13px;
}
.footer-bottom-inner p { margin: 0; color: rgba(190, 208, 230, .55); }
.footer-bottom-inner a { color: rgba(190, 208, 230, .62); }
.footer-bottom-inner a:hover { color: #fff; }
.footer-bottom .beian { display: flex; align-items: center; gap: 5px; }
.footer-bottom .police-badge { width: 14px; height: 14px; object-fit: contain; vertical-align: -2px; }
.footer-legal { justify-self: end; display: flex; gap: 22px; }
.footer-legal a { color: rgba(190, 208, 230, .62); }
.footer-legal a:hover { color: #fff; }
.beian { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.beian a { color: rgba(190, 208, 230, .62); }
.beian a:hover { color: #fff; }
.beian .police { display: inline-flex; align-items: center; gap: 5px; }
.beian .police-badge { width: 14px; height: 14px; object-fit: contain; display: inline-block; flex: none; }
.beian-todo { color: rgba(190, 208, 230, .5); }

.back-top {
  position: fixed; right: 26px; bottom: 34px; z-index: 120;
  width: 46px; height: 46px; border-radius: 12px; color: #fff;
  background: var(--grad-primary); box-shadow: 0 10px 26px rgba(23,105,255,.4);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(12px); transition: all .3s;
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top .ico { transform: rotate(-90deg); }

/* ==========================================================================
   内页通用
   ========================================================================== */
.sub-hero {
  position: relative; color: #fff; padding: 70px 0 64px;
  background: var(--grad-navy); overflow: hidden;
}
.sub-hero-media { position: absolute; inset: 0; }
.sub-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.sub-hero-mask {
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(5,20,42,.92) 0%, rgba(7,28,58,.72) 55%, rgba(7,28,58,.5) 100%);
}
.sub-hero-compact .sub-hero-mask {
  background:
    radial-gradient(700px 260px at 85% -20%, rgba(27,108,255,.35), transparent 70%),
    linear-gradient(120deg, var(--navy-900), var(--navy-800) 70%, var(--navy-700));
}
.sub-hero .container { position: relative; z-index: 1; }
.sub-hero h1 { color: #fff; font-size: clamp(28px, 3.6vw, 40px); margin: 14px 0 10px; }
.sub-hero p { color: rgba(230, 241, 255, .85); font-size: 16px; }
.breadcrumb { display: flex; align-items: center; gap: 9px; font-size: 13.5px; color: rgba(220,234,250,.72); }
.breadcrumb a { color: rgba(220,234,250,.82); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span { color: rgba(220,234,250,.45); }
.breadcrumb-light { margin-bottom: 24px; }
.breadcrumb-light :not(a) { color: var(--muted); }
.breadcrumb-light a { color: var(--blue-600); }
.detail-meta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 16px; }
.detail-meta > span {
  display: inline-flex; align-items: center; gap: 6px;
  color: rgba(230, 241, 255, .85); font-size: 14px;
}
.detail-meta .case-cat { position: static; left: auto; top: auto; z-index: auto; }
.side-list a em.side-date { margin-left: auto; flex: none; padding-left: 12px; }
.section-article { padding-top: 40px; }

/* 功能卡片 */
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.feature-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px 34px; transition: transform .3s, box-shadow .3s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.feature-icon {
  width: 60px; height: 60px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
  background: rgba(23,105,255,.1); color: var(--blue); margin-bottom: 20px;
}
.feature-icon .ico { width: 30px; height: 30px; }
.feature-card h3 { font-size: 20px; margin-bottom: 10px; }
.feature-card p { color: var(--muted); font-size: 15px; }

/* 流程 */
.process-flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; margin-top: 44px; }
.process-flow li {
  position: relative; padding: 26px 18px 24px; text-align: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
}
.process-flow li::after {
  content: ""; position: absolute; top: 50%; right: -14px; width: 12px; height: 12px;
  border-top: 2px solid var(--blue); border-right: 2px solid var(--blue);
  transform: translateY(-50%) rotate(45deg); z-index: 1;
}
.process-flow li:last-child::after { display: none; }
.process-num {
  display: block; font-size: 26px; font-weight: 800;
  background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.process-flow strong { display: block; margin: 8px 0 4px; font-size: 15.5px; color: var(--navy-900); }
.process-flow em { font-style: normal; font-size: 12.5px; color: var(--muted); line-height: 1.6; display: block; }

/* 无人机场景 */
.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.scene-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  min-height: 380px; display: flex; align-items: flex-end; color: #fff;
  box-shadow: var(--shadow-sm);
}
.scene-media { position: absolute; inset: 0; }
.scene-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s; }
.scene-card:hover .scene-media img { transform: scale(1.06); }
.scene-card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(3,13,28,.92) 0%, rgba(3,13,28,.35) 55%, transparent 80%);
}
.scene-icon {
  position: absolute; z-index: 2; top: 26px; left: 26px;
  width: 54px; height: 54px; border-radius: 14px;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.35);
  display: flex; align-items: center; justify-content: center; color: #fff; backdrop-filter: blur(4px);
}
.scene-body { position: relative; z-index: 2; padding: 30px 32px; }
.scene-body h3 { color: #fff; font-size: 22px; margin-bottom: 8px; }
.scene-body p { color: rgba(235, 244, 255, .86); font-size: 14.5px; max-width: 92%; }

.support-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.support-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.support-media img { aspect-ratio: 4/3; object-fit: cover; }
.check-list { display: flex; flex-direction: column; gap: 14px; margin: 24px 0 32px; }
.check-list li { display: flex; align-items: center; gap: 11px; font-size: 16px; color: var(--ink-2); }
.check-list .ico { color: var(--blue); flex: none; }

/* 筛选 */
.filter-tabs { display: flex; gap: 12px; justify-content: center; margin-bottom: 42px; flex-wrap: wrap; }
.filter-tab {
  padding: 10px 26px; border-radius: 999px; border: 1.5px solid var(--line);
  color: var(--ink-2); font-weight: 600; font-size: 15px; background: #fff;
}
.filter-tab:hover { border-color: var(--blue); color: var(--blue); }
.filter-tab.is-active { background: var(--grad-primary); border-color: transparent; color: #fff; }
.empty-tip { text-align: center; color: var(--muted); padding: 80px 0; font-size: 16px; }

/* 文章布局 */
.article-layout { display: grid; grid-template-columns: 1fr 316px; gap: 40px; align-items: start; }
.article-main { min-width: 0; background: #fff; }
.article-cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 30px; box-shadow: var(--shadow-sm); }
.article-cover img { aspect-ratio: 21/9; object-fit: cover; width: 100%; }
.article-lead {
  font-size: 17px; color: var(--navy-800); background: var(--bg);
  border-left: 4px solid var(--blue); padding: 18px 22px; border-radius: 0 10px 10px 0; margin-bottom: 28px;
}
.article-title { font-size: clamp(24px, 2.8vw, 32px); margin-bottom: 18px; }
.article-info { display: flex; gap: 22px; flex-wrap: wrap; color: var(--muted); font-size: 13.5px; padding-bottom: 20px; border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.rich-text { color: var(--ink-2); font-size: 16px; }
.rich-text p { margin-bottom: 18px; }
.article-foot { display: flex; gap: 14px; margin-top: 38px; padding-top: 26px; border-top: 1px solid var(--line); flex-wrap: wrap; }

.article-side { position: sticky; top: calc(var(--header-h) + 20px); display: flex; flex-direction: column; gap: 20px; }
.side-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; }
.side-card h3 { font-size: 18px; margin-bottom: 16px; }
.side-list li { border-bottom: 1px dashed var(--line); }
.side-list li:last-child { border-bottom: 0; }
.side-list a { display: flex; align-items: flex-start; gap: 9px; padding: 12px 2px; color: var(--ink-2); font-size: 14.5px; line-height: 1.6; }
.side-list a:hover { color: var(--blue); }
.case-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); margin-top: 10px; flex: none; }
.side-date { display: block; color: var(--muted); font-size: 12px; font-style: normal; margin-top: 2px; }
.side-empty { color: var(--muted); font-size: 14px; padding: 8px 0; }
.side-cta { background: var(--grad-navy); }
.side-cta h3 { color: #fff; }
.side-cta p { color: rgba(230,241,255,.8); font-size: 14px; margin-bottom: 18px; }

/* 资讯列表 */
.news-list { display: flex; flex-direction: column; gap: 18px; }
.news-item a {
  display: flex; gap: 26px; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px 30px; color: inherit; transition: box-shadow .25s, transform .25s, border-color .25s;
}
.news-item a:hover { color: inherit; box-shadow: var(--shadow-md); transform: translateX(4px); border-color: transparent; }
.news-item-date { flex: none; width: 66px; text-align: center; border-right: 1px solid var(--line); padding-right: 22px; }
.news-item-date strong { display: block; font-size: 32px; line-height: 1.1; color: var(--blue); font-weight: 800; }
.news-item-date em { display: block; font-style: normal; font-size: 12.5px; color: var(--muted); margin-top: 4px; }
.news-item-body { min-width: 0; }
.news-item-title { display: block; font-size: 19px; color: var(--navy-900); margin-bottom: 8px; }
.news-item a:hover .news-item-title { color: var(--blue); }
.news-item-summary { display: block; font-style: normal; color: var(--muted); font-size: 14.5px; margin-bottom: 12px; }
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 44px; flex-wrap: wrap; }
.page-btn {
  min-width: 42px; height: 42px; padding: 0 14px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: 10px; color: var(--ink-2); background: #fff; font-size: 15px;
}
.page-btn:hover { border-color: var(--blue); color: var(--blue); }
.page-btn.is-current { background: var(--grad-primary); color: #fff; border-color: transparent; }
.page-btn.is-disabled { opacity: .45; pointer-events: none; }

/* 关于 */
.about-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.about-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-md); }
.about-media img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.about-text .rich-text p { font-size: 16px; color: var(--ink-2); }

/* 联系 */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.contact-info .plain-paragraph { margin: 14px 0 30px; }
.contact-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-cards li {
  display: flex; gap: 14px; padding: 22px 20px; background: #fff;
  border: 1px solid var(--line); border-radius: var(--radius);
}
.contact-icon {
  flex: none; width: 46px; height: 46px; border-radius: 12px;
  background: linear-gradient(140deg, rgba(27,108,255,.12), rgba(19,191,232,.12));
  color: var(--blue); display: flex; align-items: center; justify-content: center;
}
.contact-cards strong { display: block; font-size: 15px; color: var(--navy-900); }
.contact-cards em { display: block; font-style: normal; font-size: 14px; color: var(--muted); word-break: break-all; }
.contact-tip {
  display: flex; gap: 10px; align-items: flex-start; margin-top: 24px;
  padding: 16px 18px; background: var(--bg); border-radius: 10px;
  font-size: 13.5px; color: var(--muted);
}
.contact-tip .ico { color: var(--blue); margin-top: 3px; flex: none; }
.contact-cards li.contact-card-qr {
  grid-column: 1 / -1; align-items: center;
  background: linear-gradient(135deg,#0a1b33,#102a54);
  border-color: transparent; color: #fff; gap: 16px;
}
.contact-card-qr-img {
  width: 84px; height: 84px; flex: none; border-radius: 10px;
  background: #fff; padding: 5px; box-shadow: 0 6px 14px rgba(0,0,0,.25);
}
.contact-card-qr-txt strong { display: block; font-size: 15px; color: #fff; margin-bottom: 6px; }
.contact-card-qr-txt em { display: block; font-style: normal; font-size: 13px; color: rgba(255,255,255,.72); line-height: 1.6; }
.contact-form-wrap {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 38px 36px; box-shadow: var(--shadow-sm);
}
.form-title { font-size: 24px; margin-bottom: 6px; display: flex; align-items: center; gap: 10px; }
.form-title-tag {
  display: inline-flex; align-items: center; padding: 2px 10px;
  background: linear-gradient(135deg,#1769ff,#13bfe8); color: #fff;
  font-size: 12px; font-weight: 600; border-radius: 999px; letter-spacing: .5px;
}
.form-sub { margin: 0 0 22px; font-size: 14px; color: var(--muted); }
.form-row { margin-bottom: 18px; }
.form-label { display: block; font-size: 14.5px; font-weight: 600; color: var(--navy-900); margin-bottom: 8px; }
.form-label i { color: var(--danger); font-style: normal; }
.form-control {
  width: 100%; padding: 12px 15px; border: 1.5px solid var(--line); border-radius: 10px;
  font-size: 15px; font-family: inherit; color: var(--ink); background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.form-control:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(23,105,255,.12); }
textarea.form-control { resize: vertical; min-height: 120px; }
select.form-control { appearance: auto; }
.checkbox-label { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; color: var(--muted); cursor: pointer; }
.checkbox-label input { margin-top: 4px; accent-color: var(--blue); width: 16px; height: 16px; }
.form-agree { margin: 6px 0 20px; }
.hp-field { position: absolute !important; left: -9999px !important; height: 1px; width: 1px; overflow: hidden; }
.alert { display: flex; gap: 12px; align-items: flex-start; border-radius: 10px; padding: 16px 18px; margin-bottom: 18px; font-size: 14.5px; }
.alert .ico-sm { margin-top: 4px; flex: none; }
.alert-success { background: #eaf8f1; color: #0c704a; border: 1px solid #b6e4cd; }
.alert-success strong { display: block; }
.alert-success p { margin: 2px 0 0; }
.alert-error { background: #fdecea; color: #a9261f; border: 1px solid #f3c2be; }

/* 法律文本 */
.legal-text h2 { font-size: 19px; margin: 32px 0 12px; }
.legal-text p { color: var(--ink-2); margin-bottom: 12px; font-size: 15.5px; }

/* 错误页 */
.error-section { min-height: 60vh; display: flex; align-items: center; padding: 80px 0; }
.error-box { text-align: center; }
.error-code {
  display: block; font-size: clamp(90px, 16vw, 160px); line-height: 1; font-weight: 800;
  background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.error-box h1 { margin: 10px 0 12px; }
.error-box p { color: var(--muted); margin-bottom: 30px; }
.error-actions { display: flex; gap: 14px; justify-content: center; }

/* 滚动显现 */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1100px) {
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid-page { grid-template-columns: repeat(2, 1fr); }
  .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .biz-body { padding: 34px 32px; }
  .main-nav { gap: 16px; }
  .nav-list a { padding: 9px 9px; font-size: 14.5px; }
}

@media (max-width: 900px) {
  .section { padding: 64px 0; }
  /* 移动导航抽屉 */
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: fixed; top: 0; right: 0; bottom: 0; width: min(72vw, 300px);
    flex-direction: column; align-items: stretch; justify-content: flex-start;
    gap: 8px; padding: calc(var(--header-h) + 24px) 24px 30px;
    background: #fff; box-shadow: -20px 0 60px rgba(4, 18, 38, .18);
    z-index: 250; overflow-y: auto;
  }
  body.nav-open .main-nav { display: flex; animation: navSlideIn .3s ease both; }
  @keyframes navSlideIn { from { transform: translateX(100%); } to { transform: none; } }
  /* 抽屉滚动锁定：仅禁止滚动条，不移动body（position:fixed会让带毛玻璃的header
     成为抽屉的定位参照物，导致滚动后打开抽屉飞出屏幕）；iOS触摸穿透由JS拦截 */
  body.nav-open {
    overflow: hidden !important;
  }
  .main-nav {
    height: 100vh; height: 100dvh;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    padding-bottom: calc(30px + env(safe-area-inset-bottom, 0px));
  }
  .nav-list { flex-direction: column; gap: 2px; }
  .nav-list a { padding: 13px 12px; font-size: 16px; }
  .nav-list a::after { display: none; }
  .nav-list a.active { background: var(--bg); }
  .home .site-header:not(.is-stuck) .nav-list a { color: var(--ink-2); }
  /* 抽屉内账号入口与菜单项左对齐 */
  .nav-account { margin-left: 0; margin-top: 10px; justify-content: center; }
  .nav-cta { margin-top: 14px; text-align: center; }
  body.nav-open::after {
    content: ""; position: fixed; inset: 0; background: rgba(4,18,38,.45);
    z-index: 240; animation: fadeIn .25s;
  }
  /* 抽屉打开时抬升整个header（含按钮260/抽屉250），保证在遮罩240之上，
     否则遮罩会盖住菜单按钮与抽屉链接，造成点不动/不跳转 */
  body.nav-open .site-header { z-index: 260; }
  @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

  .showcase-grid { grid-template-columns: 1fr; }
  .carousel-viewport { aspect-ratio: 16/10; }
  .carousel-caption { left: 24px; right: 24px; bottom: 52px; max-width: 90%; }
  .biz-card, .biz-card-reverse { grid-template-columns: 1fr; }
  .biz-card-reverse .biz-media { order: 0; }
  .biz-media { min-height: 260px; }
  .about-grid, .support-wrap, .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .article-layout { grid-template-columns: 1fr; }
  .article-side { position: static; }
  .feature-grid, .scene-grid { grid-template-columns: 1fr; }
  .process-flow { grid-template-columns: repeat(2, 1fr); }
  .process-flow li::after { display: none; }
  .topbar-hide { display: none; }
  .hero { height: auto; min-height: 0; }
  .hero .hero-content { padding: 132px 0 56px; }
  .hero-actions .btn { width: 100%; }
  .footer-cta-inner { padding: 52px 24px; }
  .footer-cta-actions { width: 100%; }
  .footer-cta-actions .btn { flex: 1; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px 28px; padding: 0 24px 36px; }
  .footer-grid .footer-about { grid-column: 1 / -1; }
  /* 手机端列排序：信息服务|核心服务 一行，联系方式|快速导航 一行 */
  .footer-grid .footer-info { order: 1; }
  .footer-grid .footer-core { order: 2; }
  .footer-grid .footer-contactcol { order: 3; }
  .footer-grid .footer-quick { order: 4; }
  .footer-qr { grid-column: 1 / -1; flex-direction: row; justify-content: flex-start; text-align: left; gap: 14px; }
}

@media (max-width: 600px) {
  body { font-size: 15px; }
  .container { padding: 0 18px; }
  .section { padding: 54px 0; }
  .adv-grid-3 { grid-template-columns: 1fr; }
  .home .adv-grid { grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 28px; }
  .home .adv-grid .adv-card { padding: 14px 6px; text-align: center; }
  .home .adv-grid .adv-card p { display: none; }
  .home .adv-grid .adv-card h3 { font-size: 12.5px; margin: 8px 0 0; }
  .home .adv-grid .adv-icon { width: 40px; height: 40px; margin: 0 auto; border-radius: 12px; }
  .home .adv-grid .adv-icon .ico { width: 22px; height: 22px; }
  .case-grid, .case-grid-page { grid-template-columns: 1fr; }
  .home .guarantee-grid { grid-template-columns: repeat(4, 1fr); gap: 6px; margin: 28px 0 24px; }
  .home .guarantee-item { padding: 12px 4px; }
  .home .guarantee-item em { display: none; }
  .home .guarantee-item strong { font-size: 11.5px; margin-bottom: 0; }
  .home .guarantee-icon { width: 38px; height: 38px; margin-bottom: 8px; border-radius: 10px; }
  .home .guarantee-icon .ico { width: 20px; height: 20px; }
  .biz-list { grid-template-columns: 1fr; }
  .biz-body { padding: 28px 22px; }
  .contact-cards { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 28px 22px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .news-item a { flex-direction: row; gap: 16px; padding: 20px; }
  .news-item-date { width: 52px; padding-right: 14px; }
  .news-item-title { font-size: 16px; }
  .carousel-arrow { width: 40px; height: 40px; }
  .carousel-caption em { display: none; }
  .carousel-dots { bottom: 16px; right: 20px; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .back-top { right: 16px; bottom: 20px; width: 42px; height: 42px; }
  .topbar-inner { gap: 14px; }
  /* 手机端页脚保持双列横排：信息服务|核心服务、联系方式|快速导航 */
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 18px 16px; padding: 0 18px 30px; }
  .footer-grid .footer-about { grid-column: 1 / -1; }
  .footer-grid .footer-info { order: 1; }
  .footer-grid .footer-core { order: 2; }
  .footer-grid .footer-contactcol { order: 3; }
  .footer-grid .footer-quick { order: 4; }
  .footer-grid .footer-title { font-size: 14px; margin-bottom: 10px; }
  .footer-links { gap: 7px; }
  .footer-links a { font-size: 12.5px; }
  .footer-contact { gap: 9px; }
  .footer-contact li { align-items: flex-start; }
  .footer-contact .ico { width: 15px; height: 15px; margin-top: 2px; }
  .footer-contact span { font-size: 12.5px; line-height: 1.6; word-break: break-all; }
  .footer-desc { font-size: 12.5px; }
  .footer-cta-actions .btn { flex: none; width: 100%; }
  /* 手机端首屏大标题：字号自适应、双行均衡换行 */
  .hero-title { font-size: clamp(22px, 6.6vw, 27px); letter-spacing: .5px; text-wrap: balance; }
  /* 手机端信息发布栏目切换：4 个按钮一行等分显示 */
  .publish-tabs { gap: 6px; flex-wrap: nowrap; }
  .publish-tab { flex: 1; padding: 6px 4px; font-size: 12.5px; text-align: center; white-space: nowrap; }
}

@media (min-width: 901px) {
  .hero-title { white-space: nowrap; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ==========================================================================
   有偿信息服务（会员专区 / 付费内容 / 信息发布）
   ========================================================================== */

/* 导航账号入口（透明玻璃拟态） */
.nav-account {
  display: inline-flex; align-items: center; gap: 6px; margin-left: 14px;
  padding: 8px 18px; border-radius: 999px; font-size: 14px; color: var(--navy-800); white-space: nowrap;
  background: rgba(23, 105, 255, .07); border: 1px solid rgba(23, 105, 255, .18);
  -webkit-backdrop-filter: blur(10px) saturate(1.4); backdrop-filter: blur(10px) saturate(1.4);
  box-shadow: 0 2px 10px rgba(10, 40, 90, .06);
  transition: background .25s, border-color .25s, box-shadow .25s, color .25s;
}
.nav-account:hover {
  color: var(--blue-600); background: rgba(23, 105, 255, .13);
  border-color: rgba(23, 105, 255, .32); box-shadow: 0 4px 16px rgba(23, 105, 255, .14);
}
/* 首页顶部透明导航下的玻璃效果 */
.home .site-header:not(.is-stuck) .nav-account {
  color: #fff; background: rgba(255, 255, 255, .12);
  border-color: rgba(255, 255, 255, .3); box-shadow: 0 2px 12px rgba(0, 0, 0, .12);
}
.home .site-header:not(.is-stuck) .nav-account:hover {
  color: #fff; background: rgba(255, 255, 255, .22); border-color: rgba(255, 255, 255, .45);
}
/* 移动端白底抽屉内：覆盖首页透明导航的白字玻璃样式，保证文字可见 */
@media (max-width: 900px) {
  .home .site-header:not(.is-stuck) .nav-account {
    color: var(--navy-800); background: rgba(23, 105, 255, .07);
    border-color: rgba(23, 105, 255, .18); box-shadow: 0 2px 10px rgba(10, 40, 90, .06);
  }
  .home .site-header:not(.is-stuck) .nav-account:hover {
    color: var(--blue-600); background: rgba(23, 105, 255, .13); border-color: rgba(23, 105, 255, .32);
  }
}

/* 导航下拉（产品服务） */
.nav-dropdown { position: relative; }
.nav-drop-toggle { display: inline-flex; align-items: center; gap: 4px; cursor: pointer; }
.nav-drop-arrow { transform: rotate(90deg); transition: transform .2s; }
.nav-dropdown:hover .nav-drop-arrow, .nav-dropdown:focus-within .nav-drop-arrow { transform: rotate(-90deg); }
.nav-drop-menu {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translate(-50%, 6px);
  min-width: 190px; background: var(--white); border: 1px solid var(--line);
  border-radius: 12px; box-shadow: var(--shadow-md); padding: 8px;
  opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s; z-index: 300;
}
.nav-dropdown:hover .nav-drop-menu, .nav-dropdown:focus-within .nav-drop-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.nav-drop-menu li a {
  display: block; padding: 10px 14px; border-radius: 8px; white-space: nowrap;
  font-size: 14.5px; font-weight: 500; color: var(--ink-2);
}
.nav-drop-menu li a::after { display: none; }
.nav-drop-menu li a:hover { background: var(--bg-soft); color: var(--blue); }
.home .site-header:not(.is-stuck) .nav-drop-menu li a { color: var(--ink-2); }
.home .site-header:not(.is-stuck) .nav-drop-menu li a:hover { color: var(--blue); }

/* 移动端：产品服务手风琴，点击展开子菜单 */
@media (max-width: 900px) {
  .nav-drop-menu {
    display: none; position: static; transform: none; opacity: 1; visibility: visible;
    border: none; box-shadow: none; padding: 2px 0 4px; min-width: 0; background: transparent;
  }
  .nav-dropdown.is-open .nav-drop-menu { display: block; }
  .nav-drop-toggle { display: flex; align-items: center; width: 100%; }
  .nav-drop-arrow { transform: rotate(90deg); margin-left: auto; transition: transform .2s; }
  .nav-dropdown.is-open .nav-drop-arrow { transform: rotate(-90deg); }
  .nav-drop-menu li a { padding: 11px 12px 11px 26px; font-size: 15px; color: var(--ink-3, #5b6b80); }
}

/* 价格标签 */
.tag { display: inline-block; font-style: normal; font-size: 12px; font-weight: 600; line-height: 1; padding: 4px 8px; border-radius: 6px; margin-right: 6px; vertical-align: 2px; }
.tag-member { color: #8a5a00; background: #fff3d6; border: 1px solid #f0d896; }
.tag-paid { color: var(--blue-700); background: #e8f0ff; border: 1px solid #c2d8ff; }
.tag-cat { color: var(--ink-2); background: var(--bg-soft); border: 1px solid var(--line); }

/* 会员档位 */
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 28px; }
.plan-card { position: relative; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px 26px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
.plan-card-hot { border: 2px solid var(--blue); box-shadow: var(--shadow-md); }
.plan-badge { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--grad-primary); color: #fff; font-size: 13px; font-weight: 600; padding: 4px 16px; border-radius: 999px; }
.plan-card h3 { font-size: 20px; text-align: center; }
.plan-price { text-align: center; font-size: 30px; font-weight: 800; color: var(--blue-600); margin: 12px 0 18px; }
.plan-benefits { flex: 1; margin-bottom: 22px; }
.plan-benefits li { position: relative; padding: 6px 0 6px 22px; font-size: 14.5px; color: var(--ink-2); border-bottom: 1px dashed var(--line); }
.plan-benefits li::before { content: ''; position: absolute; left: 2px; top: 14px; width: 7px; height: 7px; border-radius: 50%; background: var(--blue); }
.price-note { margin-top: 18px; font-size: 14px; color: var(--muted); }

/* 专享内容列表 */
.premium-list { display: flex; flex-direction: column; gap: 12px; }
.premium-item a { display: flex; justify-content: space-between; gap: 18px; align-items: flex-start; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; transition: box-shadow .2s, transform .2s; }
.premium-item a:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.premium-body { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.premium-title { font-size: 16.5px; color: var(--navy-900); font-weight: 600; }
.premium-summary { font-style: normal; font-size: 14px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.premium-date { flex-shrink: 0; font-size: 13px; color: var(--muted); }

/* 专栏卡片 */
.section-head-sub { margin-top: 44px; }
.column-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.column-card { display: flex; flex-direction: column; gap: 10px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px 24px; box-shadow: var(--shadow-sm); transition: box-shadow .2s, transform .2s; }
.column-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.column-card strong { font-size: 18px; color: var(--navy-900); }
.column-card em { font-style: normal; font-size: 14px; color: var(--muted); flex: 1; }
.column-meta { display: flex; justify-content: space-between; align-items: center; font-size: 14px; color: var(--muted); }
.column-price { color: var(--blue-600); font-weight: 700; }
.column-price-lg { color: var(--blue-600); font-size: 22px; }

/* 服务说明卡片 */
.service-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.point-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.point-card h3 { font-size: 17px; margin-bottom: 8px; color: var(--navy-800); }
.point-card p { font-size: 14.5px; color: var(--ink-2); }

/* 表单卡片（注册/登录/发布/支付） */
.form-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 36px 34px; }
.std-form .form-row { margin-bottom: 18px; }
.std-form label { display: block; font-weight: 600; color: var(--navy-800); margin-bottom: 6px; font-size: 15px; }
.std-form label i { color: var(--danger); font-style: normal; }
.std-form input[type="text"], .std-form input[type="tel"], .std-form input[type="password"], .std-form select, .std-form textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px; font: inherit; color: var(--ink); background: #fbfdff;
}
.std-form input:focus, .std-form select:focus, .std-form textarea:focus { outline: 2px solid var(--blue-tint); border-color: var(--blue); }

/* 短信验证码输入行 */
.sms-row { display: flex; gap: 10px; align-items: stretch; }
.sms-row input { flex: 1; min-width: 0; }
.sms-btn { flex: 0 0 auto; white-space: nowrap; padding: 0 14px; font-size: 13px; border-radius: 10px; align-self: stretch; }
.sms-btn[disabled] { opacity: .5; cursor: not-allowed; background: #eef2f7; border-color: var(--line); color: #8fa1b8; }
.form-agree label { display: flex; align-items: flex-start; gap: 8px; font-weight: 400; font-size: 14px; color: var(--ink-2); }
.form-agree input { margin-top: 5px; flex-shrink: 0; }
.form-tip-sep { margin: 0 10px; color: var(--ink-3); }
.form-note { margin-top: 18px; font-size: 13px; line-height: 1.8; color: var(--ink-3); }
/* 手机端协议行保持单行显示 */
@media (max-width: 600px) {
  .form-agree label { align-items: center; gap: 6px; font-size: clamp(11px, 3.2vw, 13px); white-space: nowrap; }
  .form-agree input { margin-top: 0; }
}
.form-error { background: #fdecea; border: 1px solid #f5c6c0; color: var(--danger); border-radius: 10px; padding: 12px 16px; margin-bottom: 20px; font-size: 14.5px; }
.form-success { background: #e8f7ee; border: 1px solid #bfe6cd; color: #1a7a3c; border-radius: 10px; padding: 12px 16px; margin-bottom: 20px; font-size: 14.5px; }
.form-tip { margin-top: 14px; font-size: 13.5px; color: var(--muted); }

/* 按钮补充 */
.btn-block { display: block; width: 100%; text-align: center; }
.btn-text { color: var(--blue-600); padding: 0; font-size: 14.5px; }
.btn-sm { padding: 6px 14px; font-size: 13.5px; border-radius: 8px; }
.is-disabled { opacity: .6; pointer-events: none; }
.inline-form { display: inline; }

/* 支付页 */
.pay-card .pay-table th { width: 110px; }
.pay-amount { font-size: 24px; font-weight: 800; color: var(--danger); }
.pay-channels { display: flex; gap: 14px; }
.pay-channel { display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: 10px; padding: 12px 20px; cursor: pointer; font-weight: 400; }
.pay-channel:has(input:checked) { border-color: var(--blue); background: #f3f8ff; }
.pay-success { text-align: center; padding: 20px 0 8px; }
.pay-success h2 { color: var(--success); font-size: 24px; margin-bottom: 12px; }
.pay-success-actions { display: flex; gap: 12px; justify-content: center; margin-top: 22px; flex-wrap: wrap; }

/* 付费墙 */
.paywall { margin-top: 26px; border: 1px dashed var(--blue-tint); background: #f6faff; border-radius: var(--radius-lg); padding: 30px 28px; text-align: center; }
.paywall h3 { display: inline-flex; align-items: center; gap: 8px; font-size: 18px; color: var(--navy-800); margin-bottom: 10px; }
.paywall p { color: var(--ink-2); margin-bottom: 8px; }
.paywall-price { color: var(--danger); font-size: 20px; }
.paywall .btn { margin: 10px 0 6px; }
.paywall-note { font-size: 13.5px; color: var(--muted); }
.paid-hint { margin-top: 18px; font-size: 13.5px; color: var(--success); }

/* 会员中心 */
.center-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.center-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; box-shadow: var(--shadow-sm); }
.center-card h3 { font-size: 17px; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.center-block { margin-top: 22px; }
.center-line { display: flex; justify-content: space-between; padding: 7px 0; font-size: 15px; }
.center-line span { color: var(--muted); }
.level-active { color: #8a5a00; }
.center-actions { display: flex; align-items: center; gap: 14px; margin-top: 16px; }
.center-links li { padding: 8px 0; border-bottom: 1px dashed var(--line); }
.order-paid { color: var(--success); font-weight: 600; }
.order-pending { color: var(--danger); font-weight: 600; }

/* 标准表格 */
.std-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.std-table th, .std-table td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.std-table thead th { color: var(--navy-800); font-weight: 600; background: var(--bg-soft); }
.std-table tbody tr:hover td { background: #fafcff; }

/* 信息发布 */
.publish-intro { display: grid; grid-template-columns: 1fr 340px; gap: 26px; }
.publish-intro-main { min-width: 0; }
.publish-intro-side { display: flex; flex-direction: column; gap: 26px; }
.publish-intro-text { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px 24px 14px; }
.publish-intro-text h2 { margin-bottom: 12px; }
.publish-intro-text p { color: var(--ink-2); margin-bottom: 10px; }
.publish-fee-card { background: var(--grad-navy); color: #fff; border-radius: var(--radius-lg); padding: 26px 24px; align-self: start; }
.publish-fee-card h3 { color: #fff; font-size: 18px; margin-bottom: 14px; }
.fee-line { display: flex; justify-content: space-between; align-items: baseline; font-size: 15px; }
.fee-line strong { font-size: 21px; color: #ffd76a; }
.fee-desc { font-size: 13px; color: rgba(255,255,255,.72); margin: 4px 0 14px; }
.publish-fee-card .btn-text { color: #8fb6ff; display: inline-block; margin-bottom: 14px; }
.publish-tabs { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
.publish-tab { padding: 8px 18px; border: 1px solid var(--line); border-radius: 999px; font-size: 14.5px; color: var(--ink-2); background: var(--white); }
.publish-tab.is-active { background: var(--grad-primary); border-color: var(--blue); color: #fff; font-weight: 600; }
.post-list { display: flex; flex-direction: column; gap: 14px; }
.post-item { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 24px; }
.post-head { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; margin-bottom: 8px; }
.post-title { font-size: 16.5px; color: var(--navy-900); }
.post-date { flex-shrink: 0; font-size: 13px; color: var(--muted); }
.post-content { color: var(--ink-2); font-size: 15px; margin-bottom: 10px; }
.post-meta { font-size: 13.5px; color: var(--muted); border-top: 1px dashed var(--line); padding-top: 10px; }
.post-login-tip { color: var(--blue-600); font-size: 12.5px; white-space: nowrap; }
.post-login-tip:hover { text-decoration: underline; }

/* 法律页表格适配 */
.legal-text .std-table { margin: 12px 0 18px; }

@media (max-width: 960px) {
  .plan-grid, .column-grid { grid-template-columns: 1fr; }
  .service-points, .center-grid, .publish-intro { grid-template-columns: 1fr; }
  .std-table { display: block; overflow-x: auto; }
}