/* ==========================================================================
   广州昕辉稚源科技有限公司 — 官网样式表
   作者：官网建设组
   说明：纯手写 CSS，无第三方依赖，可直接托管到任意静态服务器。
   ========================================================================== */

/* ------------------------------ 设计变量 ------------------------------ */
:root {
  --brand-900: #062a4d;
  --brand-800: #0a3a66;
  --brand-700: #0d4d86;
  --brand-600: #1268b3;
  --brand-500: #1a86dc;
  --brand-100: #e6f2fc;
  --brand-50: #f4f9fe;

  --accent-500: #00b6a1;
  --accent-100: #ddf6f2;

  --ink-900: #0f1b26;
  --ink-700: #33424f;
  --ink-500: #5d6d7a;
  --ink-300: #93a3af;
  --line: #e3eaf1;

  --bg: #ffffff;
  --bg-soft: #f7fafd;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 10px rgba(13, 77, 134, 0.06);
  --shadow: 0 10px 30px rgba(13, 77, 134, 0.09);
  --shadow-lg: 0 22px 60px rgba(6, 42, 77, 0.16);

  --wrap: 1180px;
  --header-h: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB",
    "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0 0 0.6em;
  color: var(--ink-900);
  line-height: 1.3;
  font-weight: 700;
}

h1 { font-size: clamp(1.9rem, 4.2vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.15rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1em; }

a { color: var(--brand-600); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--brand-500); }

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

ul { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 3px solid var(--accent-500);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ------------------------------ 布局工具 ------------------------------ */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 22px;
}

.section { padding: 84px 0; }
.section--soft { background: var(--bg-soft); }
.section--tight { padding: 56px 0; }

.section-head {
  max-width: 760px;
  margin: 0 auto 46px;
  text-align: center;
}

.section-head p {
  color: var(--ink-500);
  font-size: 1.02rem;
  margin: 0;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--brand-100);
  color: var(--brand-700);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.text-center { text-align: center; }

/* ------------------------------ 按钮 ------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease,
    background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn:hover { transform: translateY(-2px); }

.btn--primary {
  background: linear-gradient(135deg, var(--brand-600), var(--brand-500));
  color: #fff;
  box-shadow: 0 12px 26px rgba(26, 134, 220, 0.32);
}
.btn--primary:hover { color: #fff; box-shadow: 0 16px 34px rgba(26, 134, 220, 0.42); }

.btn--ghost {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}
.btn--ghost:hover { background: rgba(255, 255, 255, 0.22); color: #fff; }

.btn--outline {
  background: #fff;
  border-color: var(--line);
  color: var(--brand-700);
}
.btn--outline:hover { border-color: var(--brand-500); color: var(--brand-600); }

.btn--sm { padding: 9px 18px; font-size: 0.88rem; }

/* ------------------------------ 页脚备案信息 ------------------------------ */
/* 备案号已通过（粤ICP备2026160791号-1），链接指向工信部备案系统，
   这是《互联网信息服务管理办法》要求的合规展示方式。
   公安联网备案号待办理完成后，可在其后追加一个同样式的 span。 */
.footer-legal {
  display: inline-block;
  padding: 2px 12px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  font-size: 0.8rem;
  transition: border-color 0.2s ease;
}
.footer-legal:hover { border-color: rgba(255, 255, 255, 0.42); }

.footer-legal a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
}
.footer-legal a:hover {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ------------------------------ 顶部导航 ------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink-900);
  font-weight: 800;
}
.brand:hover { color: var(--brand-700); }

.brand__mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand-700), var(--brand-500));
  color: #fff;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  box-shadow: 0 8px 18px rgba(13, 77, 134, 0.28);
}

.brand__text { display: flex; flex-direction: column; line-height: 1.25; }
.brand__name { font-size: 1.02rem; letter-spacing: 0.01em; }
.brand__sub {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--ink-300);
  text-transform: uppercase;
}

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

.nav a {
  padding: 9px 15px;
  border-radius: 999px;
  color: var(--ink-700);
  font-size: 0.95rem;
  font-weight: 600;
}
.nav a:hover { background: var(--brand-50); color: var(--brand-700); }
.nav a.is-active { background: var(--brand-100); color: var(--brand-700); }

.nav-toggle {
  display: none;
  width: 44px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  border-radius: 2px;
  background: var(--brand-700);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ------------------------------ 首屏 ------------------------------ */
.hero {
  position: relative;
  overflow: hidden;
  padding: 92px 0 96px;
  color: #fff;
  background:
    radial-gradient(1000px 520px at 82% -8%, rgba(0, 182, 161, 0.42), transparent 62%),
    linear-gradient(140deg, var(--brand-900) 0%, var(--brand-700) 52%, var(--brand-600) 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(760px 460px at 74% 26%, #000, transparent 74%);
  -webkit-mask-image: radial-gradient(760px 460px at 74% 26%, #000, transparent 74%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 56px;
  align-items: center;
}

.hero h1 { color: #fff; margin-bottom: 18px; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, #7ff0e0, #9fd6ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  font-size: 1.06rem;
  color: rgba(255, 255, 255, 0.86);
  max-width: 560px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  padding: 6px 16px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
}
.hero__badge i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-500);
  box-shadow: 0 0 0 4px rgba(0, 182, 161, 0.25);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.hero__panel {
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(6px);
}

.hero__panel h3 { color: #fff; font-size: 1rem; letter-spacing: 0.05em; }

.hero__panel ul { display: grid; gap: 14px; }

.hero__panel li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.18);
  font-size: 0.94rem;
  color: rgba(255, 255, 255, 0.88);
}
.hero__panel li:last-child { padding-bottom: 0; border-bottom: 0; }

.hero__panel b { display: block; color: #fff; font-size: 0.98rem; }

.hero__panel span.num {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.16);
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
}

/* ------------------------------ 服务说明条 ------------------------------ */
/* 说明：这里原先是「数据条」，展示 60+ 项目 / 98% 交付率 等量化指标，
   这些数字未经核实，已在 2026-10 移除，改为定性的服务说明，不含任何数字承诺。
   如需恢复数据展示，可参考 git 历史或 README 中的说明重新加回。 */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: -46px;
  position: relative;
  z-index: 2;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow);
}

.trust-strip__item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 10px;
}
.trust-strip__item + .trust-strip__item { border-left: 1px solid var(--line); }

.trust-strip__dot {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border-radius: 11px;
  background: var(--brand-100);
  color: var(--brand-700);
  font-size: 0.95rem;
  font-weight: 800;
}

.trust-strip__text { text-align: left; }

.trust-strip__text b {
  display: block;
  color: var(--ink-900);
  font-size: 0.95rem;
  line-height: 1.35;
}

.trust-strip__text span {
  display: block;
  color: var(--ink-500);
  font-size: 0.82rem;
  line-height: 1.45;
}

/* ------------------------------ 卡片 ------------------------------ */
.card {
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.card:hover {
  transform: translateY(-6px);
  border-color: #cfe4f7;
  box-shadow: var(--shadow);
}
.card h3 { margin-bottom: 10px; }
.card p:last-child { margin-bottom: 0; }
.card p { color: var(--ink-500); font-size: 0.95rem; }

.card__icon {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  margin-bottom: 16px;
  border-radius: 14px;
  background: var(--brand-100);
  color: var(--brand-700);
  font-size: 1.35rem;
  font-weight: 800;
}
.card--accent .card__icon { background: var(--accent-100); color: #067f70; }

.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.card__tags span {
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--brand-50);
  border: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--brand-700);
}

/* ------------------------------ 分栏图文 ------------------------------ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 54px;
  align-items: center;
}

.split__media {
  position: relative;
  min-height: 320px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(420px 260px at 20% 10%, rgba(0, 182, 161, 0.35), transparent 70%),
    linear-gradient(150deg, var(--brand-800), var(--brand-600));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.split__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 46px 46px;
}
.split__media-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
  place-content: center;
  height: 100%;
  padding: 34px;
  color: #fff;
  text-align: center;
}
.split__media-inner strong { font-size: 1.6rem; }
.split__media-inner span { color: rgba(255, 255, 255, 0.82); font-size: 0.94rem; }

.check-list { display: grid; gap: 12px; margin: 22px 0 28px; }
.check-list li {
  position: relative;
  padding-left: 32px;
  color: var(--ink-700);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 1px;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-100);
  color: #067f70;
  font-size: 0.78rem;
  font-weight: 800;
}

/* ------------------------------ 时间线 ------------------------------ */
.timeline {
  position: relative;
  margin: 0;
  padding-left: 30px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--brand-500), var(--accent-500));
  border-radius: 2px;
}
.timeline li { position: relative; padding: 0 0 30px 8px; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 7px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 3px solid var(--brand-500);
  background: #fff;
}
.timeline__year {
  display: inline-block;
  margin-bottom: 4px;
  font-weight: 800;
  color: var(--brand-700);
}
.timeline p { margin: 0; color: var(--ink-500); font-size: 0.95rem; }

/* ------------------------------ 新闻 ------------------------------ */
.post {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 22px;
  padding: 26px 0;
  border-bottom: 1px dashed var(--line);
}
.post:first-of-type { padding-top: 0; }
.post:last-of-type { border-bottom: 0; }

.post__date {
  display: grid;
  place-content: center;
  align-content: center;
  padding: 14px 10px;
  border-radius: var(--radius-sm);
  background: var(--brand-50);
  border: 1px solid var(--line);
  text-align: center;
  color: var(--brand-700);
  line-height: 1.2;
}
.post__date b { font-size: 1.5rem; }
.post__date span { font-size: 0.76rem; color: var(--ink-500); }

.post__body h3 { margin-bottom: 8px; font-size: 1.1rem; }
.post__body p { margin-bottom: 10px; color: var(--ink-500); font-size: 0.95rem; }
.post__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.82rem;
  color: var(--ink-300);
}

/* ------------------------------ 空状态 ------------------------------ */
/* 用于新闻列表暂无内容时。有真实动态后可把头部的 .empty-state 换回 <article class="post">。 */
.empty-state {
  max-width: 620px;
  margin: 0 auto;
  padding: 56px 32px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-soft);
  text-align: center;
}

.empty-state__icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin: 0 auto 22px;
  border-radius: 18px;
  background: var(--brand-100);
  color: var(--brand-700);
  font-size: 1.5rem;
  font-weight: 800;
}

.empty-state h2 {
  margin-bottom: 12px;
  font-size: 1.35rem;
}

.empty-state p {
  max-width: 460px;
  margin: 0 auto 20px;
  color: var(--ink-500);
  font-size: 0.96rem;
}

.empty-state__link {
  display: inline-block;
  font-size: 0.94rem;
  font-weight: 700;
}
.empty-state__link:hover { text-decoration: underline; text-underline-offset: 3px; }

/* 紧凑版：用于首页新闻区块等次要位置 */
.empty-state--compact {
  max-width: 560px;
  padding: 38px 26px;
}
.empty-state--compact .empty-state__icon {
  width: 50px;
  height: 50px;
  margin-bottom: 16px;
  border-radius: 14px;
  font-size: 1.2rem;
}
.empty-state--compact h2 { font-size: 1.1rem; margin-bottom: 8px; }
.empty-state--compact p { margin-bottom: 14px; font-size: 0.92rem; }

@media (max-width: 620px) {
  .empty-state { padding: 40px 22px; }
}

/* ------------------------------ 页面 Banner ------------------------------ */
.page-hero {
  position: relative;
  padding: 66px 0 62px;
  color: #fff;
  background:
    radial-gradient(760px 400px at 88% 0%, rgba(0, 182, 161, 0.4), transparent 64%),
    linear-gradient(130deg, var(--brand-900), var(--brand-700));
}
.page-hero h1 { color: #fff; margin-bottom: 12px; }
.page-hero p { margin: 0; max-width: 720px; color: rgba(255, 255, 255, 0.85); }

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}
.crumbs a { color: rgba(255, 255, 255, 0.88); }
.crumbs a:hover { color: #fff; }

/* ------------------------------ 联系页 ------------------------------ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: start;
}

.info-list { display: grid; gap: 18px; }
.info-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.info-list .ico {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border-radius: 12px;
  background: var(--brand-100);
  color: var(--brand-700);
  font-weight: 800;
}
.info-list b { display: block; color: var(--ink-900); }
.info-list span { color: var(--ink-500); font-size: 0.94rem; }

.form {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow);
}
.form__row { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
.field { display: grid; gap: 7px; margin-bottom: 16px; }
.field label { font-size: 0.88rem; font-weight: 700; color: var(--ink-900); }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fdfefe;
  font: inherit;
  font-size: 0.94rem;
  color: var(--ink-900);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand-500);
  box-shadow: 0 0 0 3px rgba(26, 134, 220, 0.16);
}
.field .hint { font-size: 0.78rem; color: var(--ink-300); }

.form__note {
  margin: 14px 0 0;
  font-size: 0.82rem;
  color: var(--ink-300);
}

.form__alert {
  display: none;
  margin-bottom: 18px;
  padding: 12px 16px;
  border: 1px solid #bfe9e2;
  border-radius: var(--radius-sm);
  background: var(--accent-100);
  color: #067f70;
  font-size: 0.9rem;
}
.form__alert.is-visible { display: block; }

/* 邮件客户端不可用时的手动复制区域（由 main.js 填充） */
.form__fallback {
  display: none;
  margin: 16px 0 0;
  padding: 16px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  background: var(--brand-50);
  color: var(--ink-700);
  font-family: "Consolas", "Monaco", monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 320px;
  overflow: auto;
}
.form__fallback.is-visible { display: block; }

.map-strip {
  padding: 26px;
  border: 1px dashed #cfe4f7;
  border-radius: var(--radius);
  background: var(--brand-50);
  color: var(--ink-500);
  font-size: 0.94rem;
}

/* ------------------------------ 招聘/FQA ------------------------------ */
.faq { display: grid; gap: 12px; }
.faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.faq summary {
  padding: 18px 22px;
  font-weight: 700;
  color: var(--ink-900);
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "＋";
  float: right;
  color: var(--brand-500);
  font-weight: 800;
}
.faq details[open] summary::after { content: "－"; }
.faq details p { margin: 0; padding: 0 22px 20px; color: var(--ink-500); }

/* ------------------------------ CTA ------------------------------ */
.cta {
  position: relative;
  padding: 60px 44px;
  border-radius: var(--radius-lg);
  color: #fff;
  overflow: hidden;
  background:
    radial-gradient(560px 320px at 88% 10%, rgba(0, 182, 161, 0.45), transparent 66%),
    linear-gradient(130deg, var(--brand-800), var(--brand-600));
  box-shadow: var(--shadow);
  text-align: center;
}
.cta h2 { color: #fff; }
.cta p { color: rgba(255, 255, 255, 0.86); max-width: 620px; margin: 0 auto 26px; }
.cta__actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ------------------------------ 页脚 ------------------------------ */
.site-footer {
  padding: 60px 0 26px;
  background: var(--brand-900);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
}
.site-footer h4 { color: #fff; font-size: 0.98rem; margin-bottom: 16px; }
.site-footer a { color: rgba(255, 255, 255, 0.72); }
.site-footer a:hover { color: #fff; }

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 34px;
  padding-bottom: 34px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}
.footer-grid .brand { color: #fff; margin-bottom: 14px; }
.footer-grid .brand__name { color: #fff; }
.footer-grid .brand__sub { color: rgba(255, 255, 255, 0.5); }
.footer-grid ul { display: grid; gap: 9px; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  padding-top: 22px;
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.55);
}

/* ------------------------------ 回到顶部 ------------------------------ */
.to-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 60;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  background: var(--brand-600);
  color: #fff;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 12px 26px rgba(13, 77, 134, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--brand-500); }

/* ------------------------------ 入场动画 ------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover, .card:hover { transform: none; }
}

/* ------------------------------ 响应式 ------------------------------ */
@media (max-width: 1000px) {
  .hero__inner { grid-template-columns: 1fr; gap: 40px; }
  .split { grid-template-columns: 1fr; gap: 34px; }
  .contact-grid { grid-template-columns: 1fr; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: var(--header-h);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 12px 18px 18px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 12px 14px; border-radius: var(--radius-sm); }

  .section { padding: 62px 0; }

  /* 服务说明条：窄屏改为纵向堆叠，取消竖分隔线，改用横分隔线 */
  .trust-strip {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 8px 20px;
  }
  .trust-strip__item {
    justify-content: flex-start;
    padding: 16px 0;
  }
  .trust-strip__item + .trust-strip__item {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .grid--3 { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .grid--2, .grid--4 { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .post { grid-template-columns: 1fr; gap: 14px; }
  .post__date { place-self: start; padding: 10px 16px; }
  .post__date b { font-size: 1.15rem; }
  .cta { padding: 46px 22px; }
  .footer-grid { grid-template-columns: 1fr; }
  .brand__sub { display: none; }
}