/* ============================================================
   宏铝铝业 HONGLU ALUMINUM — 全局样式
   工业深蓝 · 金属质感 · 蓝图线条
   ============================================================ */

:root {
  /* 色彩系统 */
  --ink: #0b1526;
  --navy-950: #0a1729;
  --navy-900: #0d1f38;
  --navy-800: #122a4a;
  --navy-700: #16345c;
  --navy-600: #1d4478;
  --blue: #2b7bd6;
  --blue-bright: #4a9bf0;
  --blue-deep: #1a5aa8;
  --silver: #c9d6e4;
  --steel: #8ea4bc;
  --mist: #e7edf5;
  --paper: #f4f7fb;
  --white: #ffffff;
  --amber: #e8a33d; /* 金属切削火花色，仅作极少量点缀 */

  /* 金属渐变 */
  --grad-metal: linear-gradient(135deg, #9fb6cc 0%, #e8eef4 45%, #c3d2e0 55%, #7e97b1 100%);
  --grad-blue: linear-gradient(135deg, #2b7bd6 0%, #0f2f5c 100%);
  --grad-deep: linear-gradient(160deg, #0d1f38 0%, #122a4a 60%, #0a1729 100%);

  /* 字体 */
  --font-display: 'Chakra Petch', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;

  /* 节奏 */
  --w: 1200px;
  --radius: 6px;
  --hairline: 1px solid rgba(141, 164, 188, .28);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--navy-900);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

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

/* ---------- 布局工具 ---------- */
.container { width: min(var(--w), 92%); margin: 0 auto; }

.section { padding: 96px 0; }
.section-tight { padding: 72px 0; }
.section-dark { background: var(--grad-deep); color: var(--mist); }
.section-mist { background: var(--paper); }
.section-hatch {
  /* 工程制图 hatch 纹理 */
  background-image:
    repeating-linear-gradient(45deg, rgba(43, 123, 214, .05) 0 1px, transparent 1px 14px),
    linear-gradient(180deg, var(--paper), #eef3f9);
}

/* ---------- 版式：区块标题 ---------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}
.kicker::before {
  content: "";
  width: 34px; height: 2px;
  background: var(--grad-blue);
}
.kicker .no {
  color: var(--steel);
  letter-spacing: .12em;
}
.section-dark .kicker { color: var(--blue-bright); }

.sec-title {
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: .02em;
  margin-bottom: 18px;
}
.sec-title .en {
  display: block;
  margin-top: 6px;
  font-family: var(--font-display);
  font-size: .42em;
  font-weight: 500;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--steel);
}
.section-dark .sec-title { color: var(--white); }

.sec-lead { max-width: 640px; color: #50657f; font-size: 16.5px; }
.section-dark .sec-lead { color: #a9bdd4; }

.sec-head { margin-bottom: 52px; }
.sec-head.center { text-align: center; }
.sec-head.center .kicker { justify-content: center; }
.sec-head.center .sec-lead { margin: 0 auto; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .14em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s, box-shadow .25s, background .25s, color .25s;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}
.btn svg { width: 17px; height: 17px; flex: none; }
.btn-primary {
  background: var(--grad-blue);
  color: #fff;
  box-shadow: 0 10px 28px -10px rgba(43, 123, 214, .65);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px -10px rgba(43, 123, 214, .75);
}
.btn-ghost {
  background: transparent;
  color: var(--mist);
  border-color: rgba(201, 214, 228, .45);
}
.btn-ghost:hover { border-color: var(--blue-bright); color: var(--blue-bright); transform: translateY(-2px); }
.btn-dark {
  background: var(--navy-900);
  color: #fff;
}
.btn-dark:hover { background: var(--navy-700); transform: translateY(-2px); }

/* ---------- 顶栏 ---------- */
.topbar {
  background: var(--navy-950);
  color: #9fb4cc;
  font-size: 13px;
  letter-spacing: .04em;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 38px;
}
.topbar a:hover { color: var(--blue-bright); }
.topbar .tb-group { display: flex; gap: 26px; align-items: center; }
.topbar svg { width: 14px; height: 14px; vertical-align: -2px; margin-right: 7px; }
@media (max-width: 720px) { .topbar .tb-hide { display: none; } }

/* ---------- 主导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13, 31, 56, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(74, 155, 240, .18);
  transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: 0 12px 32px -14px rgba(4, 12, 24, .8); }
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand img { height: 46px; width: auto; }
.brand .bt { line-height: 1.2; }
.brand .bt b {
  display: block;
  font-size: 21px;
  font-weight: 700;
  color: #fff;
  letter-spacing: .18em;
}
.brand .bt span {
  display: block;
  font-family: var(--font-display);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .3em;
  color: var(--blue-bright);
}
.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-menu a {
  position: relative;
  padding: 10px 18px;
  font-size: 15.5px;
  letter-spacing: .08em;
  color: #c4d3e5;
  transition: color .25s;
}
.nav-menu a::after {
  content: "";
  position: absolute;
  left: 18px; right: 18px; bottom: 2px;
  height: 2px;
  background: var(--grad-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s;
}
.nav-menu a:hover, .nav-menu a.active { color: #fff; }
.nav-menu a:hover::after, .nav-menu a.active::after { transform: scaleX(1); }
.nav-toggle { display: none; }

@media (max-width: 960px) {
  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px; height: 42px;
    background: none;
    border: 1px solid rgba(201, 214, 228, .35);
    border-radius: var(--radius);
    cursor: pointer;
    padding: 0;
    align-items: center;
  }
  .nav-toggle span {
    display: block;
    width: 20px; height: 2px;
    background: var(--mist);
    transition: transform .3s, opacity .3s;
  }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-menu {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--navy-900);
    border-bottom: 1px solid rgba(74, 155, 240, .18);
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s ease;
  }
  .nav-menu.open { max-height: 460px; }
  .nav-menu a { padding: 15px 8%; border-top: 1px solid rgba(141, 164, 188, .12); }
  .nav-menu a::after { display: none; }
  .nav-menu a.active { color: var(--blue-bright); }
}

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - 114px);
  min-height: 620px;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
  background: var(--navy-950);
}
.hero-bg { position: absolute; inset: 0; }
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: .58;
  animation: heroZoom 14s ease-out forwards;
}
@keyframes heroZoom { from { transform: scale(1.12); } to { transform: scale(1); } }
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(10, 23, 41, .94) 0%, rgba(10, 23, 41, .68) 42%, rgba(10, 23, 41, .18) 75%),
    linear-gradient(0deg, rgba(10, 23, 41, .92) 0%, transparent 34%);
}
.hero::after { /* 蓝图网格 */
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(74, 155, 240, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 155, 240, .07) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; padding: 90px 0 130px; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px;
  border: 1px solid rgba(74, 155, 240, .5);
  border-radius: 999px;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .26em;
  color: var(--blue-bright);
  margin-bottom: 26px;
  background: rgba(16, 42, 76, .5);
}
.hero-title {
  font-size: clamp(34px, 5.6vw, 64px);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: .04em;
  max-width: 15em;
}
.hero-title em {
  font-style: normal;
  background: var(--grad-metal);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  margin: 26px 0 40px;
  max-width: 34em;
  color: #b9c9dd;
  font-size: 17px;
}
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }
/* 入场动画 */
.hero .rise { opacity: 0; transform: translateY(30px); animation: rise .8s cubic-bezier(.2,.7,.3,1) forwards; }
.hero .d1 { animation-delay: .15s; } .hero .d2 { animation-delay: .3s; }
.hero .d3 { animation-delay: .45s; } .hero .d4 { animation-delay: .6s; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* 滚动提示 */
.hero-scroll {
  position: absolute;
  left: 50%; bottom: 26px;
  transform: translateX(-50%);
  z-index: 3;
  color: #7e97b1;
  font-family: var(--font-display);
  font-size: 11px;
  letter-spacing: .4em;
  text-align: center;
}
.hero-scroll::after {
  content: "";
  display: block;
  width: 1px; height: 42px;
  margin: 8px auto 0;
  background: linear-gradient(var(--blue-bright), transparent);
  animation: drop 1.8s ease-in-out infinite;
}
@keyframes drop { 0% { transform: scaleY(0); transform-origin: top; } 55% { transform: scaleY(1); transform-origin: top; } 56% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- 数据带 ---------- */
.stats-band {
  background: var(--navy-950);
  border-top: 1px solid rgba(74, 155, 240, .18);
  position: relative;
  z-index: 3;
  margin-top: -84px;
  padding: 46px 0 40px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.stat { text-align: center; padding: 10px 6px; border-left: 1px solid rgba(141, 164, 188, .18); }
.stat:first-child { border-left: none; }
.stat .num {
  font-family: var(--font-display);
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  background: var(--grad-metal);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat .num small { font-size: .5em; margin-left: 2px; }
.stat .lbl { margin-top: 6px; color: #93a9c2; font-size: 14px; letter-spacing: .14em; }
@media (max-width: 760px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 10px; }
  .stat:nth-child(3) { border-left: none; }
}

/* ---------- 卡片：业务 / 产品 ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 44px; align-items: center; }
@media (max-width: 1020px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  position: relative;
  background: var(--white);
  border: var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .35s, box-shadow .35s, border-color .35s;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 26px 50px -22px rgba(13, 42, 79, .35);
  border-color: rgba(43, 123, 214, .5);
}
.card .thumb { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.card .thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s cubic-bezier(.2,.7,.3,1);
}
.card:hover .thumb img { transform: scale(1.07); }
.card .thumb::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(10, 23, 41, .55));
}
.card .body { padding: 24px 26px 28px; }
.card .body h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; letter-spacing: .03em; }
.card .body p { font-size: 14.5px; color: #5b7089; line-height: 1.8; }
.card .idx {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 2;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .2em;
  color: #fff;
  background: rgba(13, 31, 56, .72);
  border: 1px solid rgba(74, 155, 240, .4);
  padding: 4px 10px;
  border-radius: 3px;
}

/* ---------- 深色卡片（为什么选择我们） ---------- */
.feature-card {
  position: relative;
  padding: 34px 30px;
  background: rgba(18, 42, 74, .55);
  border: 1px solid rgba(74, 155, 240, .22);
  border-radius: var(--radius);
  transition: background .35s, transform .35s, border-color .35s;
  overflow: hidden;
}
.feature-card:hover { background: rgba(23, 52, 92, .8); transform: translateY(-6px); border-color: rgba(74, 155, 240, .55); }
.feature-card .f-icon {
  width: 56px; height: 56px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: var(--grad-blue);
  margin-bottom: 20px;
  box-shadow: 0 10px 24px -10px rgba(43, 123, 214, .8);
}
.feature-card .f-icon svg { width: 26px; height: 26px; color: #fff; }
.feature-card h3 { color: #fff; font-size: 18.5px; margin-bottom: 10px; letter-spacing: .04em; }
.feature-card p { color: #a3b8cf; font-size: 14.5px; line-height: 1.85; }
.feature-card .f-no {
  position: absolute;
  right: 18px; top: 8px;
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 700;
  color: rgba(74, 155, 240, .12);
  line-height: 1;
}

/* ---------- 工艺流程 ---------- */
.process-rail {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 26px 18px 22px;
  background: rgba(18, 42, 74, .5);
  border: 1px solid rgba(74, 155, 240, .22);
  border-radius: var(--radius);
  text-align: center;
  transition: transform .3s, border-color .3s;
}
.step:hover { transform: translateY(-5px); border-color: var(--blue-bright); }
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--blue-bright);
  margin-bottom: 10px;
}
.step h4 { color: #fff; font-size: 16px; letter-spacing: .06em; margin-bottom: 6px; }
.step p { color: #93a9c2; font-size: 12.5px; line-height: 1.7; }
.step:not(:last-child)::after {
  content: "";
  position: absolute;
  right: -12px; top: 50%;
  width: 10px; height: 10px;
  border-top: 2px solid var(--blue);
  border-right: 2px solid var(--blue);
  transform: translateY(-50%) rotate(45deg);
}
.step:last-child::after { display: none; }
@media (max-width: 1020px) {
  .process-rail { grid-template-columns: repeat(3, 1fr); }
  .step:nth-child(3)::after { display: none; }
}
@media (max-width: 640px) {
  .process-rail { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none !important; }
}

/* ---------- 图文并排 ---------- */
.split .img-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 34px 64px -30px rgba(10, 23, 41, .5);
}
.split .img-wrap img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
.split .img-wrap .corner {
  position: absolute;
  width: 46px; height: 46px;
  border: 2px solid var(--blue-bright);
  pointer-events: none;
}
.split .img-wrap .corner.tl { top: 14px; left: 14px; border-right: none; border-bottom: none; }
.split .img-wrap .corner.br { bottom: 14px; right: 14px; border-left: none; border-top: none; }
.split h3.sub {
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 20px;
}
.split .points { margin: 26px 0 34px; display: grid; gap: 14px; }
.split .points li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: #4b6079;
  font-size: 15.5px;
}
.section-dark .split .points li { color: #b3c6db; }
.split .points svg { width: 20px; height: 20px; flex: none; margin-top: 5px; color: var(--blue); }
.section-dark .split .points svg { color: var(--blue-bright); }

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--blue), rgba(43, 123, 214, .15));
}
.tl-item { position: relative; padding: 0 0 34px 26px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -30px; top: 8px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--navy-950);
  border: 3px solid var(--blue);
}
.tl-item .year {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  color: var(--blue-bright);
  letter-spacing: .06em;
}
.tl-item h4 { color: #fff; font-size: 17px; margin: 4px 0 6px; letter-spacing: .04em; }
.tl-item p { color: #9db2ca; font-size: 14.5px; max-width: 560px; }

/* ---------- 数据表格 ---------- */
.spec-table { width: 100%; border-collapse: collapse; font-size: 14.5px; background: #fff; }
.spec-table th, .spec-table td {
  padding: 13px 18px;
  text-align: left;
  border: 1px solid #dde6f0;
}
.spec-table thead th {
  background: var(--navy-800);
  color: #dbe6f3;
  font-weight: 600;
  letter-spacing: .08em;
  white-space: nowrap;
}
.spec-table tbody tr:nth-child(even) { background: #f6f9fc; }
.spec-table tbody tr:hover { background: #eaf2fb; }
.spec-table .num { font-family: var(--font-display); letter-spacing: .04em; }
.table-scroll { overflow-x: auto; border-radius: var(--radius); box-shadow: 0 18px 40px -26px rgba(13, 31, 56, .4); }

/* ---------- 新闻卡片 ---------- */
.news-card { display: flex; gap: 22px; background: #fff; border: var(--hairline); border-radius: var(--radius); padding: 22px; transition: transform .3s, box-shadow .3s, border-color .3s; }
.news-card:hover { transform: translateY(-5px); box-shadow: 0 22px 44px -22px rgba(13, 42, 79, .3); border-color: rgba(43, 123, 214, .5); }
.news-card .thumb { flex: none; width: 210px; height: 150px; border-radius: 4px; overflow: hidden; }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-card:hover .thumb img { transform: scale(1.06); }
.news-card .meta { font-family: var(--font-display); font-size: 12.5px; letter-spacing: .18em; color: var(--steel); margin-bottom: 8px; }
.news-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; line-height: 1.5; }
.news-card p { color: #5b7089; font-size: 14px; line-height: 1.8; }
.news-list { display: grid; gap: 22px; }
@media (max-width: 720px) {
  .news-card { flex-direction: column; }
  .news-card .thumb { width: 100%; height: 190px; }
}

/* ---------- 认证徽章 ---------- */
.badge-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.badge {
  padding: 28px 18px;
  text-align: center;
  background: rgba(255, 255, 255, .04);
  border: 1px dashed rgba(141, 164, 188, .35);
  border-radius: var(--radius);
  transition: border-color .3s, background .3s;
}
.badge:hover { border-color: var(--blue-bright); background: rgba(43, 123, 214, .1); }
.badge svg { width: 40px; height: 40px; color: var(--blue-bright); margin: 0 auto 14px; }
.badge b { display: block; color: #e6edf6; font-size: 15.5px; letter-spacing: .05em; margin-bottom: 4px; }
.badge span { color: #8ea4bc; font-size: 12.5px; letter-spacing: .06em; }
@media (max-width: 860px) { .badge-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  background: var(--grad-blue);
  color: #fff;
  padding: 70px 0;
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
  background-size: 42px 42px;
}
.cta-band::after {
  content: "";
  position: absolute;
  right: -80px; top: -80px;
  width: 320px; height: 320px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 50%;
  box-shadow: 0 0 0 60px rgba(255, 255, 255, .05), 0 0 0 120px rgba(255, 255, 255, .03);
}
.cta-inner { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-inner h2 { font-size: clamp(22px, 3vw, 32px); font-weight: 700; letter-spacing: .04em; }
.cta-inner p { color: rgba(255, 255, 255, .82); margin-top: 8px; font-size: 15px; }
.cta-inner .btn { border-color: rgba(255, 255, 255, .6); }

/* ---------- 子页 Banner ---------- */
.page-banner {
  position: relative;
  padding: 120px 0 96px;
  color: #fff;
  background: var(--navy-950);
  overflow: hidden;
}
.page-banner .pb-bg { position: absolute; inset: 0; }
.page-banner .pb-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .4; }
.page-banner::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(10, 23, 41, .96) 10%, rgba(10, 23, 41, .55) 70%, rgba(10, 23, 41, .3));
}
.page-banner::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(74, 155, 240, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 155, 240, .06) 1px, transparent 1px);
  background-size: 48px 48px;
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner h1 { font-size: clamp(30px, 4.4vw, 48px); font-weight: 700; letter-spacing: .06em; margin-bottom: 10px; }
.page-banner .crumbs {
  font-size: 13.5px;
  color: #9db2ca;
  letter-spacing: .1em;
  display: flex;
  gap: 10px;
  align-items: center;
}
.page-banner .crumbs a:hover { color: var(--blue-bright); }
.page-banner .crumbs .sep { color: var(--blue); }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; }
@media (max-width: 920px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-item {
  display: flex;
  gap: 18px;
  padding: 26px;
  background: #fff;
  border: var(--hairline);
  border-radius: var(--radius);
  margin-bottom: 18px;
  transition: border-color .3s, transform .3s;
}
.contact-item:hover { border-color: rgba(43, 123, 214, .5); transform: translateX(6px); }
.contact-item .ci-icon {
  flex: none;
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: var(--radius);
  background: var(--mist);
  color: var(--blue-deep);
}
.contact-item .ci-icon svg { width: 24px; height: 24px; }
.contact-item h3 { font-size: 16.5px; margin-bottom: 6px; letter-spacing: .05em; }
.contact-item p { color: #5b7089; font-size: 14.5px; line-height: 1.8; }
.contact-item .big { font-family: var(--font-display); font-size: 22px; font-weight: 700; color: var(--navy-800); letter-spacing: .05em; }

.map-frame {
  border-radius: var(--radius);
  overflow: hidden;
  border: var(--hairline);
  background: #fff;
  box-shadow: 0 24px 50px -28px rgba(13, 31, 56, .45);
}
.map-frame svg { display: block; width: 100%; height: auto; }
.map-note { padding: 16px 20px; font-size: 13px; color: #6b7f97; border-top: var(--hairline); background: #f8fafd; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--navy-950);
  color: #8ea4bc;
  border-top: 1px solid rgba(74, 155, 240, .16);
}
.footer-main { padding: 68px 0 48px; display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.1fr; gap: 44px; }
@media (max-width: 960px) { .footer-main { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .footer-main { grid-template-columns: 1fr; } }
.footer-brand img { height: 44px; margin-bottom: 18px; }
.footer-brand p { font-size: 14px; line-height: 1.9; }
.site-footer h4 {
  color: #dbe6f3;
  font-size: 15.5px;
  letter-spacing: .12em;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}
.site-footer h4::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 26px; height: 2px;
  background: var(--grad-blue);
}
.footer-links li { margin-bottom: 11px; }
.footer-links a { font-size: 14px; transition: color .25s, padding-left .25s; }
.footer-links a:hover { color: var(--blue-bright); padding-left: 6px; }
.footer-contact li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  margin-bottom: 12px;
  line-height: 1.7;
}
.footer-contact svg { width: 16px; height: 16px; flex: none; margin-top: 5px; color: var(--blue); }
.footer-bottom {
  border-top: 1px solid rgba(141, 164, 188, .14);
  padding: 20px 0;
  font-size: 13px;
  letter-spacing: .06em;
}
.footer-bottom .container { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ---------- 回到顶部 ---------- */
.to-top {
  position: fixed;
  right: 26px; bottom: 30px;
  z-index: 90;
  width: 46px; height: 46px;
  display: grid; place-items: center;
  background: var(--grad-blue);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .3s, transform .3s, visibility .3s;
  box-shadow: 0 14px 30px -10px rgba(43, 123, 214, .7);
}
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top svg { width: 20px; height: 20px; }
.to-top:hover { filter: brightness(1.15); }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s cubic-bezier(.2,.7,.3,1), transform .8s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .12s; }
.reveal[data-delay="2"] { transition-delay: .24s; }
.reveal[data-delay="3"] { transition-delay: .36s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-bg img { animation: none; }
  .hero .rise { animation: none; opacity: 1; transform: none; }
}

/* ---------- 小屏适配 ---------- */
@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .section-tight { padding: 52px 0; }
  .hero-inner { padding: 70px 0 120px; }
  .btn { padding: 12px 24px; }
}