/* ==========================================================================
   深圳市雨翔通讯技术有限公司 — 官网样式表
   品牌色取自 LOGO 渐变蓝：#2E9BE8 → #0979CB → #1543A2
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --navy-900: #061731;
  --navy-800: #0A2A5E;
  --blue-800: #123A87;
  --blue-700: #1543A2;
  --blue-600: #0C5FC0;
  --blue-500: #0979CB;
  --blue-400: #2E9BE8;
  --blue-300: #77C3F3;
  --blue-100: #DCEBFA;
  --blue-50: #F0F6FD;

  --ink: #0D1B2E;
  --body: #4E6178;
  --muted: #8296AC;
  --line: #E4EBF4;
  --soft: #F6F9FD;
  --white: #FFFFFF;

  --grad: linear-gradient(135deg, #2E9BE8 0%, #0979CB 45%, #1543A2 100%);
  --grad-soft: linear-gradient(135deg, #F0F6FD 0%, #E4EFFC 100%);
  --grad-dark: linear-gradient(140deg, #0A2A5E 0%, #061731 60%, #061731 100%);

  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 26px;

  --shadow-xs: 0 1px 3px rgba(13, 42, 94, .05);
  --shadow-sm: 0 4px 14px rgba(13, 42, 94, .07);
  --shadow: 0 14px 36px rgba(13, 42, 94, .10);
  --shadow-lg: 0 28px 64px rgba(9, 45, 110, .17);
  --shadow-blue: 0 16px 34px rgba(9, 121, 203, .28);

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

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB",
          "Source Han Sans SC", "Noto Sans SC", -apple-system, BlinkMacSystemFont,
          "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Segoe UI", var(--font);
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--body);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
}

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .22s ease; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }

::selection { background: var(--blue-500); color: #fff; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--soft); }
::-webkit-scrollbar-thumb { background: #C3D5E8; border-radius: 99px; border: 2px solid var(--soft); }
::-webkit-scrollbar-thumb:hover { background: var(--blue-400); }

/* ---------- 3. 布局工具 ---------- */
.container { width: min(var(--container), 92%); margin-inline: auto; }
.container--narrow { width: min(920px, 92%); margin-inline: auto; }

.section { padding: 92px 0; }
.section--tight { padding: 68px 0; }
.section--soft { background: var(--soft); }
.section--grad { background: var(--grad-soft); }
.section--dark { background: var(--grad-dark); color: rgba(255, 255, 255, .78); }

.section-head { max-width: 780px; margin: 0 auto 56px; text-align: center; }
.section-head--left { margin-inline: 0; text-align: left; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--blue-500); margin-bottom: 16px;
}
.eyebrow::before {
  content: ""; width: 26px; height: 2px; border-radius: 2px; background: var(--grad);
}
.section-head--center .eyebrow { justify-content: center; }
.section-head:not(.section-head--left) .eyebrow::after {
  content: ""; width: 26px; height: 2px; border-radius: 2px; background: var(--grad);
}

.section-title { font-size: clamp(26px, 3.2vw, 40px); letter-spacing: -.02em; }
.section-title .hl {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.section-lead { margin-top: 18px; font-size: 17px; color: var(--body); }

.section--dark .section-title { color: #fff; }
.section--dark .section-lead { color: rgba(255, 255, 255, .72); }

.grad-text {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 0 28px; height: 50px; border-radius: 99px;
  font-size: 15.5px; font-weight: 600; white-space: nowrap;
  transition: transform .24s cubic-bezier(.2, .8, .3, 1), box-shadow .24s ease,
              background .24s ease, color .24s ease, border-color .24s ease;
}
.btn svg { width: 17px; height: 17px; flex: none; }
.btn--primary { background: var(--grad); color: #fff; box-shadow: var(--shadow-blue); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 22px 42px rgba(9, 121, 203, .36); }
.btn--ghost { background: rgba(255, 255, 255, .12); color: #fff; border: 1px solid rgba(255, 255, 255, .34); backdrop-filter: blur(6px); }
.btn--ghost:hover { background: rgba(255, 255, 255, .2); border-color: rgba(255, 255, 255, .6); transform: translateY(-2px); }
.btn--outline { background: var(--white); color: var(--blue-700); border: 1px solid var(--line); box-shadow: var(--shadow-xs); }
.btn--outline:hover { border-color: var(--blue-300); color: var(--blue-600); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn--sm { height: 42px; padding: 0 20px; font-size: 14.5px; }
.btn--block { width: 100%; }

.link-more {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 14.5px; font-weight: 600; color: var(--blue-500);
}
.link-more svg { width: 15px; height: 15px; transition: transform .24s ease; }
.link-more:hover { color: var(--blue-700); }
.link-more:hover svg { transform: translateX(4px); }

/* ---------- 5. 顶部信息条 ---------- */
.topbar {
  background: var(--navy-900); color: rgba(255, 255, 255, .66);
  font-size: 13px; line-height: 1;
}
.topbar__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; min-height: 40px; flex-wrap: wrap;
}
.topbar__list { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; }
.topbar__item { display: inline-flex; align-items: center; gap: 8px; }
.topbar__item svg { width: 14px; height: 14px; color: var(--blue-300); flex: none; }
.topbar__item a:hover { color: #fff; }
.topbar__tag { display: inline-flex; align-items: center; gap: 8px; color: rgba(255, 255, 255, .8); }
.topbar__dot {
  width: 7px; height: 7px; border-radius: 50%; background: #34D399; flex: none;
  box-shadow: 0 0 0 0 rgba(52, 211, 153, .7); animation: pulse 2.4s infinite;
}
@keyframes pulse {
  70% { box-shadow: 0 0 0 9px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

/* ---------- 6. 页头与导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 900;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s ease, background .3s ease;
}
.site-header.is-stuck { box-shadow: 0 6px 26px rgba(13, 42, 94, .09); background: rgba(255, 255, 255, .96); }
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; min-height: var(--header-h);
}

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand__mark { width: 46px; height: 46px; flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.16; }
.brand__cn { font-size: 20px; font-weight: 800; color: var(--ink); letter-spacing: .04em; }
.brand__en {
  font-size: 9.5px; letter-spacing: .15em; color: var(--muted);
  text-transform: uppercase; font-weight: 600; white-space: nowrap;
}
.brand--light .brand__cn { color: #fff; }
.brand--light .brand__en { color: rgba(255, 255, 255, .5); }

.nav { display: flex; align-items: center; gap: 4px; }
.nav__link {
  position: relative; display: inline-block;
  padding: 10px 16px; border-radius: 9px;
  font-size: 15.5px; font-weight: 600; color: #2A3B52;
}
.nav__link::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px;
  border-radius: 2px; background: var(--grad);
  transform: scaleX(0); transform-origin: left; transition: transform .28s ease;
}
.nav__link:hover { color: var(--blue-600); }
.nav__link:hover::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--blue-700); }
.nav__link.is-active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 18px; }
.header-phone { display: flex; align-items: center; gap: 10px; }
.header-phone__icon {
  width: 38px; height: 38px; border-radius: 11px; flex: none;
  display: grid; place-items: center; background: var(--blue-50); color: var(--blue-500);
}
.header-phone__icon svg { width: 18px; height: 18px; }
.header-phone__meta { display: flex; flex-direction: column; line-height: 1.24; }
.header-phone__label { font-size: 11px; color: var(--muted); letter-spacing: .04em; }
.header-phone__num { font-size: 16px; font-weight: 700; color: var(--ink); font-family: var(--font-num); letter-spacing: .01em; }
.header-phone:hover .header-phone__num { color: var(--blue-600); }

.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: 11px;
  border: 1px solid var(--line); background: var(--white);
  place-items: center; color: var(--ink);
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .i-close { display: none; }
.nav-toggle.is-open .i-menu { display: none; }
.nav-toggle.is-open .i-close { display: block; }

/* 移动端抽屉 */
.nav-drawer {
  position: fixed; inset: 0; z-index: 1200;
  background: rgba(6, 23, 49, .5); backdrop-filter: blur(3px);
  opacity: 0; visibility: hidden; transition: opacity .3s ease, visibility .3s ease;
}
.nav-drawer.is-open { opacity: 1; visibility: visible; }
.nav-drawer__panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(330px, 86vw);
  background: var(--white); padding: 24px 22px 32px;
  display: flex; flex-direction: column; gap: 6px;
  transform: translateX(100%); transition: transform .34s cubic-bezier(.22, .8, .28, 1);
  overflow-y: auto;
}
.nav-drawer.is-open .nav-drawer__panel { transform: translateX(0); }
.nav-drawer__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.nav-drawer__close { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; color: var(--ink); background: var(--soft); }
.nav-drawer__close svg { width: 20px; height: 20px; }
.nav-drawer__link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 14px; border-radius: 11px;
  font-size: 16.5px; font-weight: 600; color: var(--ink);
}
.nav-drawer__link:hover, .nav-drawer__link.is-active { background: var(--blue-50); color: var(--blue-700); }
.nav-drawer__link svg { width: 16px; height: 16px; color: var(--muted); }
.nav-drawer__cta { margin-top: 18px; display: grid; gap: 10px; }
.nav-drawer__info { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--line); display: grid; gap: 12px; font-size: 14px; }
.nav-drawer__info div { display: flex; gap: 10px; align-items: flex-start; }
.nav-drawer__info svg { width: 16px; height: 16px; color: var(--blue-500); flex: none; margin-top: 4px; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  background: var(--navy-900); color: #fff;
  padding: 96px 0 104px;
}
.hero__bg {
  position: absolute; inset: 0; z-index: -2;
  background: url("../img/hero-fiber.jpg") center/cover no-repeat;
  opacity: .58;
}
.hero__veil {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(120% 90% at 8% 12%, rgba(9, 121, 203, .55) 0%, transparent 55%),
    linear-gradient(100deg, rgba(6, 23, 49, .96) 0%, rgba(6, 23, 49, .88) 42%, rgba(6, 23, 49, .58) 100%);
}
.hero__grid {
  position: absolute; inset: 0; z-index: -1; opacity: .16;
  background-image:
    linear-gradient(rgba(255, 255, 255, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .1) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(90% 70% at 70% 30%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(90% 70% at 70% 30%, #000 0%, transparent 78%);
}
.hero__inner { max-width: 800px; }
.hero__badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 16px 7px 12px; border-radius: 99px;
  background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .2);
  font-size: 13.5px; font-weight: 600; color: rgba(255, 255, 255, .9);
  backdrop-filter: blur(6px); margin-bottom: 26px;
}
.hero__badge span:first-child { color: var(--blue-300); display: grid; place-items: center; }
.hero__badge svg { width: 15px; height: 15px; }
.hero h1 {
  color: #fff; font-size: clamp(32px, 4.6vw, 56px); line-height: 1.2;
  letter-spacing: -.025em; font-weight: 800;
}
.hero h1 .hl {
  background: linear-gradient(120deg, #77C3F3 0%, #2E9BE8 50%, #0979CB 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__lead {
  margin-top: 24px; font-size: clamp(15.5px, 1.5vw, 18px);
  color: rgba(255, 255, 255, .78); max-width: 640px;
}
.hero__tags { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; }
.hero__tag {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 14px; border-radius: 99px;
  background: rgba(46, 155, 232, .14); border: 1px solid rgba(119, 195, 243, .3);
  font-size: 13.5px; color: #CFE6FA; font-weight: 500;
}
.hero__tag svg { width: 14px; height: 14px; color: var(--blue-300); }
.hero__actions { margin-top: 38px; display: flex; flex-wrap: wrap; gap: 14px; }

.hero__stats {
  margin-top: 64px; padding-top: 34px;
  border-top: 1px solid rgba(255, 255, 255, .14);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.hero__stat .num {
  font-family: var(--font-num); font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 700; color: #fff; line-height: 1; letter-spacing: -.02em;
}
.hero__stat .num i { font-style: normal; font-size: .55em; color: var(--blue-300); margin-left: 3px; }
.hero__stat .lbl { margin-top: 10px; font-size: 13.5px; color: rgba(255, 255, 255, .6); }

/* 内页横幅 */
.page-hero {
  position: relative; isolation: isolate; overflow: hidden;
  padding: 74px 0 66px; background: var(--navy-900); color: #fff;
}
.page-hero__bg {
  position: absolute; inset: 0; z-index: -2;
  background-size: cover; background-position: center; opacity: .34;
}
.page-hero__veil {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(100deg, rgba(6, 23, 49, .97) 0%, rgba(10, 42, 94, .9) 55%, rgba(21, 67, 162, .74) 100%);
}
.page-hero h1 { color: #fff; font-size: clamp(28px, 3.6vw, 44px); letter-spacing: -.02em; }
.page-hero__lead { margin-top: 16px; max-width: 660px; color: rgba(255, 255, 255, .74); font-size: 16.5px; }

.breadcrumb { display: flex; align-items: center; gap: 9px; font-size: 13.5px; color: rgba(255, 255, 255, .55); margin-bottom: 18px; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb svg { width: 13px; height: 13px; opacity: .6; }
.breadcrumb .current { color: var(--blue-300); }

/* ---------- 8. 卡片通用 ---------- */
.card {
  position: relative; background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 34px 30px;
  transition: transform .3s cubic-bezier(.2, .8, .3, 1), box-shadow .3s ease, border-color .3s ease;
}
.card:hover { transform: translateY(-6px); border-color: var(--blue-100); box-shadow: var(--shadow); }

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

/* 图标 */
.icon-box {
  width: 58px; height: 58px; border-radius: 16px; flex: none;
  display: grid; place-items: center; color: #fff;
  background: var(--grad); box-shadow: 0 10px 22px rgba(9, 121, 203, .26);
}
.icon-box svg { width: 27px; height: 27px; }
.icon-box--soft { background: var(--blue-50); color: var(--blue-500); box-shadow: none; }

/* 业务卡 */
.svc-card { display: flex; flex-direction: column; }
.svc-card__head { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.svc-card__no {
  margin-left: auto; font-family: var(--font-num); font-size: 26px;
  font-weight: 700; color: var(--blue-100); line-height: 1;
}
.svc-card h3 { font-size: 19.5px; }
.svc-card__desc { font-size: 15px; color: var(--body); }
.svc-card__list { margin: 20px 0 24px; display: grid; gap: 10px; }
.svc-card__list li {
  position: relative; padding-left: 24px; font-size: 14.5px; color: #5C6F87;
}
.svc-card__list li::before {
  content: ""; position: absolute; left: 0; top: 10px;
  width: 14px; height: 8px; border-left: 2px solid var(--blue-400);
  border-bottom: 2px solid var(--blue-400); transform: rotate(-45deg);
  border-radius: 1px;
}
.svc-card__foot { margin-top: auto; padding-top: 4px; }
.svc-card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  border-radius: var(--radius) var(--radius) 0 0; background: var(--grad);
  transform: scaleX(0); transform-origin: left; transition: transform .34s ease;
}
.svc-card:hover::after { transform: scaleX(1); }

/* 优势卡 */
.why-card { padding: 32px 28px; }
.why-card__top { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 14px; }
.why-card__idx {
  font-family: var(--font-num); font-size: 15px; font-weight: 700; color: var(--blue-500);
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: var(--blue-50); flex: none;
}
.why-card h3 { font-size: 18px; }
.why-card p { font-size: 14.5px; margin-top: 8px; }

/* 统计条 */
.stat-band { padding: 56px 0; }
.stat-band__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-item { text-align: center; position: relative; }
.stat-item:not(:last-child)::after {
  content: ""; position: absolute; right: -15px; top: 14%; height: 72%; width: 1px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, .22), transparent);
}
.stat-item .num {
  font-family: var(--font-num); font-size: clamp(30px, 3.6vw, 46px); font-weight: 700;
  color: #fff; line-height: 1; letter-spacing: -.02em;
}
.stat-item .num i { font-style: normal; font-size: .5em; color: var(--blue-300); margin-left: 3px; }
.stat-item .lbl { margin-top: 12px; font-size: 14px; color: rgba(255, 255, 255, .64); }

/* ---------- 9. 流程 ---------- */
.flow { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.flow::before {
  content: ""; position: absolute; left: 6%; right: 6%; top: 30px; height: 2px;
  background: repeating-linear-gradient(90deg, var(--blue-200, #C9DEF3) 0 10px, transparent 10px 20px);
}
.flow__step { position: relative; text-align: center; padding: 0 6px; }
.flow__dot {
  width: 60px; height: 60px; margin: 0 auto 18px; border-radius: 50%;
  display: grid; place-items: center; background: var(--white);
  border: 2px solid var(--blue-100); color: var(--blue-500);
  font-family: var(--font-num); font-weight: 700; font-size: 19px;
  position: relative; z-index: 1; box-shadow: var(--shadow-sm);
  transition: all .3s ease;
}
.flow__step:hover .flow__dot { background: var(--grad); color: #fff; border-color: transparent; box-shadow: var(--shadow-blue); transform: translateY(-4px); }
.flow__step h4 { font-size: 16.5px; margin-bottom: 8px; }
.flow__step p { font-size: 14px; color: var(--body); }

/* ---------- 10. 案例 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 42px; }
.filter-btn {
  padding: 9px 20px; border-radius: 99px; border: 1px solid var(--line);
  background: var(--white); color: #45586F; font-size: 14.5px; font-weight: 600;
  transition: all .24s ease;
}
.filter-btn:hover { border-color: var(--blue-300); color: var(--blue-600); }
.filter-btn.is-active { background: var(--grad); color: #fff; border-color: transparent; box-shadow: var(--shadow-blue); }

.case-card {
  position: relative; overflow: hidden; border-radius: var(--radius);
  background: var(--white); border: 1px solid var(--line);
  display: flex; flex-direction: column;
  transition: transform .3s cubic-bezier(.2, .8, .3, 1), box-shadow .3s ease;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.case-card__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.case-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2, .8, .3, 1); }
.case-card:hover .case-card__media img { transform: scale(1.06); }
.case-card__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6, 23, 49, 0) 40%, rgba(6, 23, 49, .55) 100%);
}
.case-card__cat {
  position: absolute; left: 16px; top: 16px; z-index: 2;
  padding: 6px 13px; border-radius: 99px; font-size: 12.5px; font-weight: 600;
  background: rgba(255, 255, 255, .92); color: var(--blue-700);
  backdrop-filter: blur(4px);
}
.case-card__body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.case-card__body h3 { font-size: 17.5px; margin-bottom: 10px; }
.case-card__body p { font-size: 14.5px; color: var(--body); }
.case-card__tags { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line); display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 5px 12px; border-radius: 8px; font-size: 12.5px;
  background: var(--blue-50); color: var(--blue-600); font-weight: 500;
}

/* 案例详述行 */
.case-row { display: grid; grid-template-columns: 1.05fr 1fr; gap: 46px; align-items: center; }
.case-row + .case-row { margin-top: 74px; }
.case-row:nth-child(even) .case-row__media { order: 2; }
.case-row__media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); position: relative; }
.case-row__media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.case-row__no {
  font-family: var(--font-num); font-size: 14px; font-weight: 700; color: var(--blue-500);
  letter-spacing: .1em; margin-bottom: 12px;
}
.case-row h3 { font-size: clamp(21px, 2.3vw, 27px); margin-bottom: 16px; }
.case-row p { font-size: 15.5px; }
.case-row__points { margin-top: 22px; display: grid; gap: 12px; }
.case-row__points li { display: flex; gap: 12px; font-size: 15px; align-items: flex-start; }
.case-row__points svg { width: 19px; height: 19px; color: var(--blue-400); flex: none; margin-top: 4px; }

/* ---------- 11. 服务详情 ---------- */
.detail-block {
  display: grid; grid-template-columns: 1fr 1.08fr; gap: 52px; align-items: center;
  padding: 62px 0;
}
.detail-block + .detail-block { border-top: 1px solid var(--line); }
.detail-block:nth-child(even) .detail-block__media { order: 2; }
.detail-block__media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.detail-block__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.detail-block h2 { font-size: clamp(22px, 2.5vw, 30px); margin-bottom: 16px; }
.detail-block__desc { font-size: 15.5px; margin-bottom: 24px; }
.detail-block__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 20px; }
.detail-block__grid li { display: flex; gap: 11px; font-size: 14.5px; color: #536880; align-items: flex-start; }
.detail-block__grid svg { width: 18px; height: 18px; color: var(--blue-400); flex: none; margin-top: 5px; }

.scene-tags { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 9px; }
.scene-tags .chip { background: var(--soft); color: #5A6E86; border: 1px solid var(--line); }

/* 侧边锚点导航 */
.svc-layout { display: grid; grid-template-columns: 250px 1fr; gap: 52px; align-items: start; }
.svc-aside { position: sticky; top: calc(var(--header-h) + 22px); }
.svc-aside__title {
  font-size: 12.5px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 14px;
}
.svc-aside__list { display: grid; gap: 4px; }
.svc-aside__link {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 15px; border-radius: 11px;
  font-size: 14.5px; font-weight: 600; color: #45586F;
  border-left: 2px solid transparent;
  transition: all .22s ease;
}
.svc-aside__link:hover { background: var(--blue-50); color: var(--blue-700); }
.svc-aside__link.is-active { background: var(--blue-50); color: var(--blue-700); border-left-color: var(--blue-500); }
.svc-aside__help {
  margin-top: 26px; padding: 24px 22px; border-radius: var(--radius);
  background: var(--grad); color: #fff; box-shadow: var(--shadow-blue);
}
.svc-aside__help h4 { color: #fff; font-size: 17px; margin-bottom: 8px; }
.svc-aside__help p { font-size: 13.5px; color: rgba(255, 255, 255, .82); }
.svc-aside__help .btn { margin-top: 16px; background: #fff; color: var(--blue-700); box-shadow: none; }
.svc-aside__help .btn:hover { transform: translateY(-2px); }

/* ---------- 12. CTA 咨询条 ---------- */
.cta-band { position: relative; isolation: isolate; overflow: hidden; padding: 66px 0; background: var(--grad); color: #fff; }
.cta-band::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .22;
  background-image:
    radial-gradient(circle at 88% 22%, rgba(255, 255, 255, .5) 0%, transparent 42%),
    radial-gradient(circle at 12% 88%, rgba(255, 255, 255, .35) 0%, transparent 40%);
}
.cta-band__inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; font-size: clamp(23px, 2.7vw, 32px); letter-spacing: -.02em; }
.cta-band p { margin-top: 12px; color: rgba(255, 255, 255, .84); font-size: 15.5px; max-width: 620px; }
.cta-band__actions { display: flex; gap: 14px; flex-wrap: wrap; flex: none; }
.cta-band__actions .btn--white { background: #fff; color: var(--blue-700); box-shadow: 0 14px 30px rgba(6, 23, 49, .2); }
.cta-band__actions .btn--white:hover { transform: translateY(-2px); }
.cta-band__actions .btn--line { border: 1px solid rgba(255, 255, 255, .55); color: #fff; }
.cta-band__actions .btn--line:hover { background: rgba(255, 255, 255, .16); transform: translateY(-2px); }

/* ---------- 13. 关于我们 ---------- */
.about-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.about-intro p + p { margin-top: 16px; }
.about-intro p { font-size: 15.5px; }
.about-logo-card {
  padding: 44px 34px; border-radius: var(--radius-lg); text-align: center;
  background: var(--grad-soft); border: 1px solid var(--blue-100);
}
.about-logo-card img { width: min(320px, 80%); margin: 0 auto 22px; }
.about-logo-card p { font-size: 13.5px; color: var(--body); }

.info-table { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.info-table__row { display: grid; grid-template-columns: 190px 1fr; border-bottom: 1px solid var(--line); }
.info-table__row:last-child { border-bottom: 0; }
.info-table__row:nth-child(odd) { background: var(--soft); }
.info-table__k { padding: 16px 22px; font-weight: 600; color: var(--ink); font-size: 14.5px; }
.info-table__v { padding: 16px 22px; font-size: 14.5px; color: var(--body); }

.value-item { display: flex; gap: 18px; padding: 26px 0; border-bottom: 1px dashed var(--line); }
.value-item:last-child { border-bottom: 0; }
.value-item__icon {
  width: 48px; height: 48px; border-radius: 14px; flex: none;
  display: grid; place-items: center; background: var(--blue-50); color: var(--blue-500);
}
.value-item__icon svg { width: 22px; height: 22px; }
.value-item h4 { font-size: 17px; margin-bottom: 7px; }
.value-item p { font-size: 14.5px; }

/* 合作/资质 */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.partner-card {
  display: grid; place-items: center; gap: 10px; padding: 30px 18px;
  border-radius: var(--radius); background: var(--white); border: 1px solid var(--line);
  transition: all .3s ease; text-align: center;
}
.partner-card:hover { border-color: var(--blue-100); box-shadow: var(--shadow-sm); transform: translateY(-4px); }
.partner-card__mark {
  width: 52px; height: 52px; border-radius: 15px; display: grid; place-items: center;
  background: var(--blue-50); color: var(--blue-600);
}
.partner-card__mark svg { width: 25px; height: 25px; }
.partner-card strong { font-size: 15px; color: var(--ink); }
.partner-card span { font-size: 13px; color: var(--muted); }

/* ---------- 14. 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 46px; align-items: start; }
.contact-item {
  display: flex; gap: 18px; padding: 24px 0; border-bottom: 1px dashed var(--line);
}
.contact-item:last-child { border-bottom: 0; }
.contact-item__icon {
  width: 50px; height: 50px; border-radius: 14px; flex: none;
  display: grid; place-items: center; background: var(--grad); color: #fff;
  box-shadow: 0 10px 20px rgba(9, 121, 203, .22);
}
.contact-item__icon svg { width: 22px; height: 22px; }
.contact-item__label { font-size: 13px; color: var(--muted); letter-spacing: .04em; }
.contact-item__value { font-size: 17px; font-weight: 700; color: var(--ink); line-height: 1.5; }
.contact-item__value a:hover { color: var(--blue-600); }
.contact-item__value--num { font-family: var(--font-num); letter-spacing: .01em; }
.contact-item__note { font-size: 13.5px; color: var(--muted); margin-top: 4px; }

.form-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 38px 34px; box-shadow: var(--shadow-sm);
}
.form-card h3 { font-size: 21px; margin-bottom: 8px; }
.form-card > p { font-size: 14.5px; color: var(--body); margin-bottom: 26px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; color: #3B4E66; margin-bottom: 8px; }
.form-group label i { color: #E5533D; font-style: normal; margin-left: 2px; }
.form-control {
  width: 100%; padding: 13px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--line); background: var(--soft); color: var(--ink);
  font-size: 14.5px; transition: all .22s ease; outline: none;
}
.form-control::placeholder { color: #A7B6C7; }
.form-control:focus { border-color: var(--blue-400); background: #fff; box-shadow: 0 0 0 4px rgba(46, 155, 232, .13); }
textarea.form-control { min-height: 120px; resize: vertical; }
.form-note { font-size: 12.5px; color: var(--muted); margin-top: 14px; line-height: 1.7; }
.form-msg { display: none; margin-top: 16px; padding: 13px 16px; border-radius: var(--radius-sm); font-size: 14px; }
.form-msg.is-ok { display: block; background: #EAF7F0; color: #1D7A4C; border: 1px solid #C6E9D6; }
.form-msg.is-err { display: block; background: #FDF0EE; color: #B3391F; border: 1px solid #F6D3CB; }

.map-card { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); background: var(--white); }
.map-card__head { padding: 24px 26px; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.map-card__head h3 { font-size: 18px; }
.map-card__head p { font-size: 14px; color: var(--body); margin-top: 6px; }
.map-card__canvas {
  position: relative; height: 300px;
  background:
    linear-gradient(135deg, #E8F2FC 0%, #F4F9FE 100%);
  border-top: 1px solid var(--line);
  display: grid; place-items: center; overflow: hidden;
}
.map-card__canvas::before {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image:
    linear-gradient(rgba(9, 121, 203, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(9, 121, 203, .1) 1px, transparent 1px);
  background-size: 40px 40px;
}
.map-pin {
  position: relative; z-index: 2; text-align: center;
}
.map-pin__dot {
  width: 20px; height: 20px; border-radius: 50%; background: var(--blue-500);
  border: 4px solid #fff; margin: 0 auto; box-shadow: 0 0 0 6px rgba(9, 121, 203, .18), 0 8px 18px rgba(9, 121, 203, .4);
  animation: pin-bounce 2.2s ease-in-out infinite;
}
@keyframes pin-bounce { 50% { transform: translateY(-7px); } }
.map-pin__label {
  margin-top: 16px; display: inline-block; padding: 9px 18px; border-radius: 99px;
  background: rgba(255, 255, 255, .96); border: 1px solid var(--line);
  font-size: 14px; font-weight: 600; color: var(--ink); box-shadow: var(--shadow-sm);
}

/* ---------- 15. 页脚 ---------- */
.site-footer { background: var(--grad-dark); color: rgba(255, 255, 255, .62); padding: 68px 0 0; }
.site-footer__top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 44px; padding-bottom: 52px; }
.site-footer__brand img { width: 268px; margin-bottom: 20px; }
.site-footer__brand p { font-size: 14px; line-height: 1.85; color: rgba(255, 255, 255, .58); }
.site-footer h4 { color: #fff; font-size: 15.5px; margin-bottom: 20px; letter-spacing: .02em; }
.site-footer__links { display: grid; gap: 12px; }
.site-footer__links a { font-size: 14.5px; color: rgba(255, 255, 255, .62); }
.site-footer__links a:hover { color: #fff; padding-left: 4px; }
.site-footer__contact { display: grid; gap: 16px; }
.site-footer__contact div { display: flex; gap: 11px; font-size: 14.5px; align-items: flex-start; }
.site-footer__contact svg { width: 16px; height: 16px; color: var(--blue-300); flex: none; margin-top: 5px; }
.site-footer__contact a:hover { color: #fff; }
.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 24px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  flex-wrap: wrap; font-size: 13px; color: rgba(255, 255, 255, .45);
}
.site-footer__bottom a:hover { color: rgba(255, 255, 255, .8); }
.site-footer__legal { display: flex; gap: 20px; flex-wrap: wrap; }

/* 返回顶部 */
.to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 800;
  width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center;
  background: var(--white); color: var(--blue-600); border: 1px solid var(--line);
  box-shadow: var(--shadow); opacity: 0; visibility: hidden;
  transform: translateY(12px); transition: all .3s ease;
}
.to-top.is-show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--grad); color: #fff; border-color: transparent; }
.to-top svg { width: 20px; height: 20px; }

/* 移动端底部快捷栏 */
.mobile-bar { display: none; }

/* ---------- 16. 动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.2, .8, .3, 1), transform .7s cubic-bezier(.2, .8, .3, 1); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .09s; }
.reveal[data-delay="2"] { transition-delay: .18s; }
.reveal[data-delay="3"] { transition-delay: .27s; }
.reveal[data-delay="4"] { transition-delay: .36s; }
.reveal[data-delay="5"] { transition-delay: .45s; }

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

/* ---------- 17. 响应式 ---------- */
@media (max-width: 1080px) {
  :root { --header-h: 68px; }
  .nav, .header-phone { display: none; }
  .nav-toggle { display: grid; }
  .hero { padding: 76px 0 84px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(2, 1fr); row-gap: 36px; }
  .flow::before { display: none; }
  .site-footer__top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .svc-layout { grid-template-columns: 1fr; gap: 0; }
  .svc-aside { position: static; margin-bottom: 30px; }
  .svc-aside__list { display: flex; overflow-x: auto; gap: 8px; padding-bottom: 6px; }
  .svc-aside__list::-webkit-scrollbar { height: 4px; }
  .svc-aside__link { white-space: nowrap; border-left: 0; border-bottom: 2px solid transparent; border-radius: 10px; }
  .svc-aside__link.is-active { border-left: 0; border-bottom-color: var(--blue-500); }
  .svc-aside__help { display: none; }
}

@media (max-width: 900px) {
  .section { padding: 68px 0; }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; margin-top: 48px; }
  .stat-band__grid { grid-template-columns: repeat(2, 1fr); gap: 34px 20px; }
  .stat-item:nth-child(2)::after { display: none; }
  .case-row, .detail-block, .about-intro, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .case-row:nth-child(even) .case-row__media,
  .detail-block:nth-child(even) .detail-block__media { order: 0; }
  .case-row + .case-row { margin-top: 56px; }
  .detail-block { padding: 46px 0; }
  .cta-band__inner { flex-direction: column; align-items: flex-start; }
  .partner-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  body { font-size: 15.5px; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 40px; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .topbar__inner { justify-content: center; gap: 10px; padding: 8px 0; }
  .topbar__list { gap: 16px; justify-content: center; }
  .topbar__tag { display: none; }
  .hero { padding: 60px 0 68px; }
  .hero__actions .btn { flex: 1 1 100%; }
  .hero__stats { margin-top: 40px; padding-top: 26px; }
  .flow { grid-template-columns: 1fr; }
  .flow__step { text-align: left; display: flex; gap: 18px; align-items: flex-start; }
  .flow__dot { margin: 0; flex: none; width: 52px; height: 52px; }
  .site-footer__top { grid-template-columns: 1fr; gap: 32px; padding-bottom: 38px; }
  .site-footer__brand img { width: 230px; }
  .form-card { padding: 28px 22px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .detail-block__grid { grid-template-columns: 1fr; }
  .info-table__row { grid-template-columns: 1fr; }
  .info-table__k { padding-bottom: 0; background: transparent; }
  .partner-grid { grid-template-columns: 1fr; }
  .card { padding: 28px 22px; }
  .site-footer { padding-top: 54px; }
  .site-footer__bottom { justify-content: center; text-align: center; }
  body { padding-bottom: 62px; }

  .mobile-bar {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 850;
    background: var(--line); box-shadow: 0 -4px 20px rgba(13, 42, 94, .12);
  }
  .mobile-bar a {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    height: 62px; background: var(--white); font-size: 15px; font-weight: 700; color: var(--ink);
  }
  .mobile-bar a:last-child { background: var(--grad); color: #fff; }
  .mobile-bar svg { width: 18px; height: 18px; }
  .to-top { bottom: 78px; right: 16px; width: 44px; height: 44px; }
}

@media print {
  .topbar, .site-header, .cta-band, .to-top, .mobile-bar, .nav-drawer { display: none !important; }
}

/* ==========================================================================
   8. 子页头（page-hero）+ 面包屑
   ========================================================================== */
.page-hero__bread {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13.5px; color: rgba(255, 255, 255, .78);
  background: rgba(255, 255, 255, .10);
  border: 1px solid rgba(255, 255, 255, .22);
  backdrop-filter: blur(8px);
  padding: 7px 14px; border-radius: 999px;
  margin-bottom: 22px;
}
.page-hero__bread a { color: rgba(255, 255, 255, .85); }
.page-hero__bread a:hover { color: #fff; }
.page-hero__bread svg { width: 14px; height: 14px; opacity: .7; }
.page-hero__sub {
  margin-top: 18px; max-width: 660px;
  color: rgba(255, 255, 255, .78);
  font-size: 16.5px; line-height: 1.72;
}

/* ==========================================================================
   9. 联系卡片（contact-grid）
   ========================================================================== */
.contact-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.contact-card {
  position: relative;
  display: flex; align-items: center; gap: 16px;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  text-decoration: none; color: inherit;
}
.contact-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--blue-100);
}
.contact-card__icon {
  width: 56px; height: 56px; flex: none;
  display: grid; place-items: center;
  background: var(--blue-50);
  color: var(--blue-600);
  border-radius: 14px;
  transition: background .25s ease, color .25s ease;
}
.contact-card__icon svg { width: 26px; height: 26px; }
.contact-card:hover .contact-card__icon { background: var(--grad); color: #fff; }
.contact-card__body { min-width: 0; flex: 1; }
.contact-card__label {
  font-size: 13px; color: var(--muted);
  letter-spacing: .06em;
}
.contact-card__main {
  margin-top: 6px;
  font-size: 22px; font-weight: 800;
  color: var(--ink);
  letter-spacing: -.01em;
  line-height: 1.2;
  overflow-wrap: anywhere; word-break: normal;
}
.contact-card__sub {
  margin-top: 6px; font-size: 13px; color: var(--body);
}
.contact-card__arrow {
  width: 38px; height: 38px; flex: none;
  display: grid; place-items: center;
  background: var(--soft); color: var(--blue-600);
  border-radius: 50%;
  transition: background .25s ease, color .25s ease;
}
.contact-card__arrow svg { width: 16px; height: 16px; transition: transform .25s ease; }
.contact-card:hover .contact-card__arrow { background: var(--grad); color: #fff; }
.contact-card:hover .contact-card__arrow svg { transform: translateX(2px); }
.contact-card--primary {
  background: var(--grad); color: #fff;
  border-color: transparent;
  grid-column: 1 / -1;
  box-shadow: 0 18px 38px rgba(9, 121, 203, .28);
}
.contact-card--primary .contact-card__icon { background: rgba(255, 255, 255, .22); color: #fff; }
.contact-card--primary .contact-card__label,
.contact-card--primary .contact-card__sub { color: rgba(255, 255, 255, .82); }
.contact-card--primary .contact-card__main { color: #fff; font-size: 28px; }
.contact-card--primary .contact-card__arrow { background: rgba(255, 255, 255, .22); color: #fff; }
.contact-card--addr {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #F0F6FD 0%, #fff 100%);
}
.contact-card--addr .contact-card__main { font-size: 18px; line-height: 1.6; }

/* ==========================================================================
   10. 联系页：表单 + 侧栏
   ========================================================================== */
.contact-form-wrap {
  display: grid; grid-template-columns: 1.35fr 1fr;
  gap: 38px; align-items: start;
}
.contact-form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 38px;
  box-shadow: var(--shadow-sm);
}
.contact-form-card .eyebrow { margin-bottom: 14px; }
.contact-form-card .section-title { margin-top: 0; font-size: clamp(24px, 2.6vw, 30px); }
.contact-form-card .section-lead { margin-top: 12px; font-size: 15.5px; }
.contact-form { margin-top: 28px; display: grid; gap: 18px; }
.contact-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form__full { grid-column: 1 / -1; }
.contact-form label {
  display: flex; flex-direction: column; gap: 8px;
  font-size: 14px; color: var(--ink); font-weight: 600;
}
.contact-form label span i { color: #E33; font-style: normal; margin-left: 2px; }
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--soft);
  border-radius: 12px;
  padding: 12px 14px;
  font: inherit; font-weight: 500;
  color: var(--ink);
  transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  background: #fff;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 4px rgba(9, 121, 203, .12);
}
.contact-form textarea { resize: vertical; min-height: 110px; line-height: 1.6; }
.contact-form select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--blue-600) 50%),
    linear-gradient(135deg, var(--blue-600) 50%, transparent 50%);
  background-position: calc(100% - 22px) 55%, calc(100% - 16px) 55%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 40px;
}
.contact-form__footer {
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; flex-wrap: wrap;
  margin-top: 6px;
}
.contact-form__hint { font-size: 13px; color: var(--muted); }
.contact-form__success {
  display: none;
  align-items: flex-start; gap: 12px;
  padding: 18px 20px;
  background: linear-gradient(135deg, #E9F8EE 0%, #DCF2E2 100%);
  border: 1px solid #B9E5C5;
  border-radius: 14px;
  color: #195E32; font-size: 14.5px; line-height: 1.65;
}
.contact-form__success svg {
  width: 22px; height: 22px; color: #1E8443;
  flex: none; margin-top: 2px;
}

.contact-aside { display: grid; gap: 22px; position: sticky; top: 100px; }
.contact-map {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--blue-50);
  aspect-ratio: 4 / 3;
}
.map-art { width: 100%; height: 100%; display: block; }
.map-links {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; gap: 8px; padding: 14px 12px 12px;
  background: linear-gradient(to top, rgba(255, 255, 255, .97) 45%, rgba(255, 255, 255, 0));
}
.map-links a {
  flex: 1;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 10px;
  font-size: 13px; font-weight: 700;
  color: var(--blue-700);
  background: #fff;
  border: 1px solid var(--blue-100);
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(13, 42, 94, .08);
  transition: background .22s ease, color .22s ease, border-color .22s ease, transform .22s ease;
}
.map-links a:hover {
  background: var(--grad); color: #fff;
  border-color: transparent;
  transform: translateY(-1px);
}
.map-links svg { width: 14px; height: 14px; flex: none; }
.contact-traffic {
  padding: 26px 26px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.contact-traffic h3 {
  font-size: 17px; font-weight: 800; color: var(--ink);
  letter-spacing: -.01em;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
}
.contact-traffic ul { display: grid; gap: 14px; }
.contact-traffic li {
  display: flex; gap: 12px; align-items: flex-start;
  font-size: 14.5px; color: var(--body); line-height: 1.55;
}
.contact-traffic li strong { color: var(--ink); }
.contact-traffic__tag {
  flex: none;
  display: inline-block;
  padding: 3px 10px;
  background: var(--blue-50); color: var(--blue-700);
  font-size: 12.5px; font-weight: 700; letter-spacing: .04em;
  border-radius: 999px;
  min-width: 52px; text-align: center;
  margin-top: 1px;
}

/* ==========================================================================
   11. FAQ 折叠
   ========================================================================== */
.faq-list { display: grid; gap: 12px; max-width: 880px; margin: 0 auto; }
.faq {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  transition: border-color .2s ease, box-shadow .2s ease;
  overflow: hidden;
}
.faq[open] { border-color: var(--blue-100); box-shadow: var(--shadow-sm); }
.faq summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 18px 22px;
  font-size: 15.5px; font-weight: 700; color: var(--ink);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary svg {
  width: 18px; height: 18px; color: var(--blue-600);
  flex: none; transition: transform .25s ease;
}
.faq[open] summary svg { transform: rotate(180deg); }
.faq__body {
  padding: 0 22px 20px 22px;
  color: var(--body); font-size: 14.5px; line-height: 1.78;
}

/* ==========================================================================
   12. CTA 条变体
   ========================================================================== */
.btn--outline-white {
  border: 1px solid rgba(255, 255, 255, .55); color: #fff;
  background: transparent;
  transition: background .25s ease, transform .25s ease;
}
.btn--outline-white:hover {
  background: rgba(255, 255, 255, .14);
  transform: translateY(-2px);
}

/* ==========================================================================
   13. 响应式
   ========================================================================== */
@media (min-width: 901px) and (max-width: 1080px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .contact-card--primary { grid-column: span 2; }
  .contact-card--addr    { grid-column: span 2; }
}
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
  .contact-card--primary,
  .contact-card--addr { grid-column: span 1; }
}
@media (max-width: 1080px) {
  .contact-form-wrap { grid-template-columns: 1fr; }
  .contact-aside { position: static; }
}
@media (max-width: 720px) {
  .contact-form-card { padding: 26px 22px; }
  .contact-form__row { grid-template-columns: 1fr; }
  .page-hero__sub { font-size: 15px; }
  .contact-card { padding: 18px; gap: 14px; }
  .contact-card__icon { width: 48px; height: 48px; }
  .contact-card__icon svg { width: 22px; height: 22px; }
  .contact-card__main { font-size: 18px; }
  .contact-card--primary .contact-card__main { font-size: 22px; }
}

/* ==========================================================================
   14. 案例页辅助
   ========================================================================== */
.case-empty {
  margin-top: 44px; text-align: center;
  color: var(--muted); font-size: 15px;
}

/* 流程 grid 变体：3 列 2 行 */
.flow--3 { grid-template-columns: repeat(3, 1fr); gap: 28px 24px; }
.flow--3::before { display: none; }

/* ==========================================================================
   15. 关于我们：公司简介两栏
   ========================================================================== */
.intro-grid {
  display: grid; grid-template-columns: .92fr 1.08fr;
  gap: 56px; align-items: center;
}
.intro-grid__media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.intro-grid__media img {
  display: block; width: 100%;
  aspect-ratio: 4 / 3.3;
  object-fit: cover;
}
.intro-grid__badge {
  position: absolute; left: 22px; bottom: 22px;
  padding: 14px 22px;
  background: var(--grad);
  color: #fff;
  border-radius: 16px;
  box-shadow: 0 14px 30px rgba(6, 23, 49, .28);
  text-align: center;
}
.intro-grid__badge-num {
  display: block;
  font-family: var(--font-num);
  font-size: 27px; font-weight: 800;
  line-height: 1; letter-spacing: -.01em;
}
.intro-grid__badge-txt {
  display: block; margin-top: 6px;
  font-size: 12.5px; color: rgba(255, 255, 255, .84);
}
.intro-grid__body .section-title { margin-top: 14px; }
.intro-grid__body p {
  margin-top: 16px;
  font-size: 15.5px; line-height: 1.88;
  color: var(--body);
}
.intro-grid__body p strong { color: var(--blue-700); }
.intro-grid__tags {
  margin-top: 26px;
  display: flex; flex-wrap: wrap; gap: 10px;
}
.intro-grid__actions {
  margin-top: 34px;
  display: flex; flex-wrap: wrap; gap: 14px;
}

/* ==========================================================================
   16. 关于我们：工商信息表
   ========================================================================== */
.info-card {
  max-width: 940px; margin: 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 10px 38px 32px;
  box-shadow: var(--shadow-sm);
}
.info-table { width: 100%; border-collapse: collapse; }
.info-table th,
.info-table td {
  padding: 18px 4px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  font-size: 15px; line-height: 1.65;
}
.info-table tr:last-child th,
.info-table tr:last-child td { border-bottom: 0; }
.info-table th {
  width: 172px;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
}
.info-table td { color: var(--ink); font-weight: 600; }
.info-table__code {
  font-family: var(--font-num);
  letter-spacing: .02em;
  color: var(--blue-700);
}
.info-card__note {
  margin-top: 24px;
  display: flex; gap: 12px;
  padding: 16px 18px;
  background: var(--blue-50);
  border-radius: 14px;
  color: var(--body);
  font-size: 14px; line-height: 1.7;
}
.info-card__note svg {
  width: 18px; height: 18px;
  color: var(--blue-600);
  flex: none; margin-top: 3px;
}
.info-card__note a { color: var(--blue-700); font-weight: 600; }

/* ==========================================================================
   17. 响应式补充
   ========================================================================== */
@media (max-width: 1080px) {
  .intro-grid { grid-template-columns: 1fr; gap: 34px; }
  .intro-grid__media { max-width: 560px; }
  .flow--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .filter-bar { gap: 8px; margin-bottom: 32px; }
  .filter-btn { padding: 8px 15px; font-size: 13.5px; }
  .flow--3 { grid-template-columns: 1fr; }
  .info-card { padding: 6px 20px 24px; }
  .info-table th,
  .info-table td { padding: 14px 2px; font-size: 14px; }
  .info-table th { width: auto; }
  .info-table tr { display: block; }
  .info-table th {
    display: block; padding-bottom: 4px;
    border-bottom: 0; font-size: 12.5px;
    letter-spacing: .04em;
  }
  .info-table td { display: block; padding-top: 0; }
  .info-table tr:not(:last-child) td { border-bottom: 1px solid var(--line); }
  .intro-grid__actions .btn { flex: 1; justify-content: center; }
}