/* ============================================================================
   中诚特卫 · 网站样式表
   ----------------------------------------------------------------------------
   本文件控制网站的「外观」。如果你只想改文字和价格，不需要动这里。
   只有在需要调整颜色、字体、间距时，才修改本文件顶部的变量区。
   ========================================================================== */

/* ---- 1. 设计变量（改颜色改这里） ---------------------------------------- */
:root {
  --ink-0: #08080A;
  --ink-1: #0D0D10;
  --ink-2: #131318;
  --ink-3: #1B1B22;
  --ink-4: #24242C;

  --line:        rgba(242, 239, 233, 0.10);
  --line-2:      rgba(242, 239, 233, 0.22);
  --line-strong: rgba(242, 239, 233, 0.40);

  --bone:   #F2EFE9;
  --bone-2: #B4AFA5;
  --bone-3: #7A756C;

  --blood:      #C8102E;
  --blood-2:    #E8433F;
  --blood-deep: #7A0F1E;

  --paper: #F5F2EC;

  --font-display: 'Oswald', 'Arial Narrow', Impact, system-ui, sans-serif;
  --font-body: system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;

  --shell: 1280px;
  --gut: 40px;

  --cut: 20px;
  --cut-sm: 10px;
}

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

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

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

body.no-scroll { overflow: hidden; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

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

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--ink-1); }
::-webkit-scrollbar-thumb { background: var(--ink-4); }
::-webkit-scrollbar-thumb:hover { background: var(--blood-deep); }

/* 水墨颗粒质感叠加层 */
.grain {
  position: fixed; inset: 0; z-index: 9000; pointer-events: none; opacity: .038;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---- 3. 通用版式 -------------------------------------------------------- */
.shell { width: 100%; max-width: var(--shell); margin: 0 auto; padding: 0 var(--gut); }

.section { padding: 120px 0; position: relative; }
.section + .section { border-top: 1px solid var(--line); }

.sec-head { margin-bottom: 56px; }
.sec-tag {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-display); font-size: 12px; letter-spacing: .28em;
  color: var(--blood-2); text-transform: uppercase; margin-bottom: 18px;
}
.sec-tag::before { content: ''; width: 28px; height: 1px; background: var(--blood); }

.sec-title {
  margin: 0; font-size: clamp(30px, 4vw, 52px); font-weight: 800;
  letter-spacing: .04em; line-height: 1.15;
}
.sec-title .en {
  display: block; font-family: var(--font-display); font-weight: 400;
  font-size: clamp(14px, 1.6vw, 20px); letter-spacing: .22em;
  color: var(--bone-3); margin-top: 12px; text-transform: uppercase;
}
.sec-sub { margin: 18px 0 0; color: var(--bone-2); max-width: 620px; font-size: 15px; }

/* 切角容器：游戏 UI 的核心形状语言 */
.cut {
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

/* ---- 4. 按钮 ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 30px; font-size: 14px; font-weight: 700; letter-spacing: .1em;
  border: 1px solid transparent; position: relative; white-space: nowrap;
  transition: background .22s ease, color .22s ease, border-color .22s ease, transform .22s ease;
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm));
}
.btn--primary { background: var(--blood); color: #fff; }
.btn--primary:hover { background: var(--blood-2); transform: translateY(-2px); }
.btn--ghost { border-color: var(--line-2); color: var(--bone); }
.btn--ghost:hover { border-color: var(--blood); color: var(--blood-2); transform: translateY(-2px); }
.btn--sm { padding: 11px 20px; font-size: 13px; }
.btn--block { width: 100%; }

/* ---- 5. 顶部导航 -------------------------------------------------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 800; height: 78px;
  display: flex; align-items: center;
  background: rgba(8, 8, 10, .68);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease;
}
.nav.is-scrolled { background: rgba(8, 8, 10, .95); border-bottom-color: var(--line); }
.nav .shell { display: flex; align-items: center; gap: 40px; }

.brand { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.brand-logo { height: 42px; width: auto; }
.footer .brand-logo { height: 48px; }
.brand-plate {
  background: var(--paper); padding: 5px 11px;
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
}
.brand-plate img { height: 36px; width: auto; }

.nav-links { display: flex; align-items: center; gap: 34px; margin-left: auto; }
.nav-links a {
  font-size: 14px; color: var(--bone-2); letter-spacing: .06em; position: relative;
  transition: color .2s ease;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: -7px; width: 0; height: 1px;
  background: var(--blood); transition: width .25s ease;
}
.nav-links a:hover { color: var(--bone); }
.nav-links a:hover::after { width: 100%; }

.nav-tools { display: flex; align-items: center; gap: 16px; }

/* 语言切换 */
.lang {
  display: flex; border: 1px solid var(--line-2);
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
}
.lang button {
  padding: 7px 13px; font-size: 12px; font-family: var(--font-display);
  letter-spacing: .12em; color: var(--bone-3); transition: all .2s ease;
  white-space: nowrap;
}
.lang button.is-active { background: var(--blood); color: #fff; }

.nav-burger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-burger span { display: block; width: 22px; height: 1.5px; background: var(--bone); }

/* ---- 6. 首屏 ------------------------------------------------------------ */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: flex-end;
  padding: 150px 0 70px; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; object-position: center 55%; }
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(8,8,10,.95) 0%, rgba(8,8,10,.72) 42%, rgba(8,8,10,.30) 70%, rgba(8,8,10,.55) 100%),
    linear-gradient(180deg, rgba(8,8,10,.90) 0%, rgba(8,8,10,.10) 26%, rgba(8,8,10,.55) 72%, var(--ink-0) 100%);
}

.hero .shell { position: relative; z-index: 1; width: 100%; }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 14px;
  font-family: var(--font-display); font-size: 12px; letter-spacing: .3em;
  color: var(--blood-2); text-transform: uppercase; margin-bottom: 26px;
}
.hero-eyebrow::before { content: ''; width: 42px; height: 2px; background: var(--blood); }

.hero h1 {
  margin: 0; font-size: clamp(54px, 9vw, 128px); font-weight: 900;
  letter-spacing: .08em; line-height: 1; text-shadow: 0 6px 40px rgba(0,0,0,.6);
}
.hero h1.is-long { font-size: clamp(24px, 4.2vw, 54px); letter-spacing: .08em; line-height: 1.16; }
.hero-en {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(13px, 1.8vw, 22px); letter-spacing: .3em;
  color: var(--bone-2); text-transform: uppercase; margin: 18px 0 0;
}
.hero-lead {
  max-width: 640px; margin: 30px 0 0; color: var(--bone-2);
  font-size: clamp(15px, 1.3vw, 17px); line-height: 1.9;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }

.hero-foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; margin-top: 72px; padding-top: 22px; border-top: 1px solid var(--line);
  font-family: var(--font-display); font-size: 12px; letter-spacing: .24em;
  color: var(--bone-3); text-transform: uppercase;
}
.hero-scroll { display: inline-flex; align-items: center; gap: 12px; }
.hero-scroll i {
  display: block; width: 1px; height: 30px; background: linear-gradient(180deg, var(--blood), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }

/* ---- 7. 数据条 ---------------------------------------------------------- */
.stats { border-top: 1px solid var(--line); background: var(--ink-1); }
.stats .shell { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat {
  padding: 42px 32px; border-right: 1px solid var(--line);
  position: relative; transition: background .3s ease;
}
.stat:last-child { border-right: 0; }
.stat:hover { background: var(--ink-2); }
.stat b {
  display: block; font-family: var(--font-display); font-size: clamp(30px, 3.4vw, 46px);
  font-weight: 700; letter-spacing: .04em; line-height: 1; color: var(--bone);
}
.stat span { display: block; margin-top: 12px; font-size: 13px; color: var(--bone-3); letter-spacing: .1em; }
.stat::before {
  content: ''; position: absolute; left: 32px; top: 0; width: 30px; height: 2px; background: var(--blood);
}

/* ---- 8. 服务类型 -------------------------------------------------------- */
.svc-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }

.svc-card {
  position: relative; min-height: 350px; overflow: hidden;
  background: var(--ink-2); border: 1px solid var(--line);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 28px; cursor: pointer;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
  transition: border-color .3s ease, transform .3s ease;
}
.svc-card:nth-child(1), .svc-card:nth-child(2) { grid-column: span 3; min-height: 400px; }
.svc-card:nth-child(n+3) { grid-column: span 2; }

.svc-media { position: absolute; inset: 0; z-index: 0; }
.svc-media img {
  width: 100%; height: 100%; object-fit: cover; opacity: .5;
  transition: opacity .5s ease, transform .8s cubic-bezier(.2,.7,.3,1);
}
.svc-media::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(8,8,10,.15) 0%, rgba(8,8,10,.72) 58%, rgba(8,8,10,.96) 100%);
}
.svc-card:hover { border-color: var(--blood); transform: translateY(-4px); }
.svc-card:hover .svc-media img { opacity: .72; transform: scale(1.06); }

.svc-body { position: relative; z-index: 1; }

.svc-code {
  position: absolute; top: 24px; right: 28px; z-index: 2;
  font-family: var(--font-display); font-size: 12px; letter-spacing: .2em;
  color: var(--bone-3); border: 1px solid var(--line-2); padding: 4px 9px;
}
.svc-card:hover .svc-code { color: var(--blood-2); border-color: var(--blood); }

.svc-name { margin: 0; font-size: 26px; font-weight: 800; letter-spacing: .05em; }
.svc-sub {
  margin: 8px 0 0; font-family: var(--font-display); font-size: 12px;
  letter-spacing: .2em; color: var(--blood-2); text-transform: uppercase;
}
.svc-desc { margin: 16px 0 0; font-size: 14px; color: var(--bone-2); line-height: 1.8; max-width: 46ch; }

.svc-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.svc-tags i {
  font-style: normal; font-size: 12px; color: var(--bone-2);
  border: 1px solid var(--line-2); padding: 4px 10px;
}
.svc-cta { display: flex; align-items: center; gap: 10px; margin-top: 22px; }
.svc-cta span { font-size: 13px; font-weight: 700; letter-spacing: .1em; color: var(--bone); }
.svc-cta u {
  text-decoration: none; display: block; width: 22px; height: 1px;
  background: var(--blood); transition: width .3s ease;
}
.svc-card:hover .svc-cta u { width: 40px; }

/* ---- 9. 安保方案流程 ---------------------------------------------------- */
.ops-track { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.ops-track::before {
  content: ''; position: absolute; left: 0; right: 0; top: 27px; height: 1px;
  background: linear-gradient(90deg, var(--blood) 0%, var(--line-2) 60%, transparent 100%);
}
.ops-step { position: relative; padding-top: 66px; }
.ops-dot {
  position: absolute; top: 14px; left: 0; width: 27px; height: 27px;
  display: grid; place-items: center; background: var(--blood);
  font-family: var(--font-display); font-size: 12px; font-weight: 700; color: #fff;
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}
.ops-num {
  display: block;
  font-family: var(--font-display); font-size: 42px; font-weight: 700;
  color: var(--ink-4); line-height: 1; letter-spacing: .04em;
}
.ops-name { margin: 10px 0 0; font-size: 19px; font-weight: 700; letter-spacing: .04em; }
.ops-desc { margin: 12px 0 0; font-size: 14px; color: var(--bone-2); line-height: 1.85; }

/* ---- 10. 覆盖地区 ------------------------------------------------------- */
.cov-map {
  position: relative; background: var(--ink-1); border: 1px solid var(--line);
  overflow: hidden; margin-bottom: 22px;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}
.cov-map svg { display: block; width: 100%; height: auto; }
.cov-map .m-lab { font-size: 15px; font-weight: 700; fill: #F2EFE9; }
.cov-map .m-sub { font-size: 10px; fill: #B4AFA5; font-family: var(--font-display); letter-spacing: 1.6px; }
.cov-map .m-axis { font-size: 10px; fill: #7A756C; font-family: var(--font-display); letter-spacing: 1px; }
.cov-map .m-hud { font-size: 10px; fill: #7A756C; font-family: var(--font-display); letter-spacing: 2px; }
.cov-map .m-dot { r: 5px; fill: #E8433F; }
.cov-map .m-core { r: 1.7px; fill: #F2EFE9; }
.cov-map .cov-pulse { r: 12px; }
.cov-hint {
  position: absolute; left: 26px; top: 16px;
  font-family: var(--font-display); font-size: 11px; letter-spacing: .22em;
  color: var(--bone-3); text-transform: uppercase;
}
.cov-pulse {
  animation: nodePulse 2.8s ease-out infinite;
  transform-box: fill-box; transform-origin: center;
}
@keyframes nodePulse {
  0%   { opacity: .6; transform: scale(.5); }
  70%  { opacity: 0;  transform: scale(1.8); }
  100% { opacity: 0;  transform: scale(1.8); }
}

.cov-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cov-item {
  background: var(--ink-2); border: 1px solid var(--line); padding: 26px 24px;
  display: flex; flex-direction: column; justify-content: space-between; min-height: 162px;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: border-color .3s ease, background .3s ease;
}
.cov-item:hover { border-color: var(--blood); background: var(--ink-3); }
.cov-item .rg {
  font-family: var(--font-display); font-size: 11px; letter-spacing: .24em;
  color: var(--blood-2); text-transform: uppercase;
}
.cov-item b { display: block; font-size: 22px; font-weight: 800; letter-spacing: .04em; margin-top: 14px; }
.cov-item em {
  display: block; font-style: normal; margin-top: 8px; font-size: 12px;
  color: var(--bone-3); font-family: var(--font-display); letter-spacing: .16em;
}
.cov-note { margin: 28px 0 0; font-size: 13px; color: var(--bone-3); }

/* ---- 10b. 团队实力（视频） --------------------------------------------- */
.media-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.media-card {
  background: var(--ink-2); border: 1px solid var(--line); overflow: hidden;
  display: flex; flex-direction: column;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
  transition: border-color .3s ease, transform .3s ease;
}
.media-card:hover { border-color: var(--blood); transform: translateY(-4px); }
.media-frame { position: relative; background: #000; aspect-ratio: 16 / 9; overflow: hidden; }
.media-frame video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.media-dur {
  position: absolute; right: 12px; top: 12px; z-index: 2; pointer-events: none;
  background: rgba(8, 8, 10, .8); border: 1px solid var(--line-2);
  font-family: var(--font-display); font-size: 11px; letter-spacing: .14em;
  color: var(--bone-2); padding: 3px 8px;
}
.media-body { padding: 24px 24px 28px; }
.media-body h3 { margin: 0; font-size: 19px; font-weight: 800; letter-spacing: .04em; }
.media-body .en {
  display: block; margin-top: 9px; font-family: var(--font-display);
  font-size: 11px; letter-spacing: .22em; color: var(--bone-3); text-transform: uppercase;
}
.media-body p { margin: 14px 0 0; font-size: 14px; color: var(--bone-2); line-height: 1.8; }

/* ---- 11. 报价档位 ------------------------------------------------------- */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: start; }
.plan {
  background: var(--ink-2); border: 1px solid var(--line); padding: 36px 30px 32px;
  display: flex; flex-direction: column; position: relative;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
  transition: border-color .3s ease, transform .3s ease;
}
.plan:hover { border-color: var(--line-strong); transform: translateY(-4px); }
.plan.is-featured { border-color: var(--blood); background: linear-gradient(180deg, rgba(200,16,46,.10) 0%, var(--ink-2) 46%); }
.plan-badge {
  position: absolute; top: 0; right: 0; background: var(--blood); color: #fff;
  font-size: 11px; font-weight: 700; letter-spacing: .16em; padding: 7px 16px;
  clip-path: polygon(10px 0, 100% 0, 100% 100%, 0 100%);
}
.plan-name { margin: 0; font-size: 23px; font-weight: 800; letter-spacing: .05em; }
.plan-en {
  font-family: var(--font-display); font-size: 12px; letter-spacing: .22em;
  color: var(--bone-3); text-transform: uppercase; margin-top: 8px;
}
.plan-for { margin: 18px 0 0; font-size: 13px; color: var(--bone-2); min-height: 44px; }
.plan-price {
  margin: 22px 0 0; padding: 18px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  font-size: 19px; font-weight: 700; color: var(--blood-2); letter-spacing: .04em;
}
.plan-feats { list-style: none; margin: 22px 0 30px; padding: 0; display: grid; gap: 13px; flex: 1; }
.plan-feats li { display: flex; gap: 12px; font-size: 14px; color: var(--bone-2); line-height: 1.6; }
.plan-feats li::before {
  content: ''; flex: 0 0 auto; width: 6px; height: 6px; margin-top: 9px;
  background: var(--blood); transform: rotate(45deg);
}

/* ---- 12. 关于我们 ------------------------------------------------------- */
.about-wrap { display: grid; grid-template-columns: 1fr 1.25fr; gap: 60px; align-items: center; }
.about-plate {
  background: var(--paper); padding: 34px;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}
.about-plate img { width: 100%; height: auto; }
.about-body p { margin: 0; font-size: 16px; color: var(--bone-2); line-height: 2; }
.about-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); margin-top: 36px; border: 1px solid var(--line); }
.about-facts div { background: var(--ink-0); padding: 20px 22px; }
.about-facts dt { font-size: 12px; color: var(--bone-3); letter-spacing: .1em; }
.about-facts dd { margin: 8px 0 0; font-size: 16px; font-weight: 700; }

/* ---- 13. 询价表单 ------------------------------------------------------- */
.quote-wrap { display: grid; grid-template-columns: 1fr 1.4fr; gap: 60px; align-items: start; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 9px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 12px; letter-spacing: .12em; color: var(--bone-3); }
.field input, .field select, .field textarea {
  width: 100%; background: var(--ink-2); border: 1px solid var(--line-2);
  color: var(--bone); font-family: inherit; font-size: 15px; padding: 13px 15px;
  transition: border-color .2s ease, background .2s ease;
  border-radius: 0;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--blood); background: var(--ink-3);
}
.field input::placeholder, .field textarea::placeholder { color: var(--bone-3); }
.field select { appearance: none; cursor: pointer; }

.form-actions { display: flex; align-items: center; gap: 20px; margin-top: 26px; flex-wrap: wrap; }
.form-notice { font-size: 12px; color: var(--bone-3); line-height: 1.7; max-width: 46ch; }

.form-ok {
  display: none; border: 1px solid var(--blood); background: rgba(200,16,46,.10);
  padding: 22px 24px; font-size: 14px; color: var(--bone);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}
.form-ok.is-on { display: block; }

.quote-side { border-left: 1px solid var(--line); padding-left: 44px; }
.quote-side dl { margin: 0; }
.quote-side dt {
  font-family: var(--font-display); font-size: 12px; letter-spacing: .24em;
  color: var(--blood-2); text-transform: uppercase; margin-top: 28px;
}
.quote-side dt:first-child { margin-top: 0; }
.quote-side dd { margin: 10px 0 0; font-size: 15px; color: var(--bone-2); line-height: 1.85; }

/* ---- 14. 页脚 ----------------------------------------------------------- */
.footer { border-top: 1px solid var(--line); background: var(--ink-1); padding: 56px 0 40px; }
.footer-top { display: flex; flex-wrap: wrap; gap: 32px; align-items: center; justify-content: space-between; }
.footer-links { display: flex; flex-wrap: wrap; gap: 28px; font-size: 14px; color: var(--bone-2); }
.footer-links a:hover { color: var(--blood-2); }
.footer-note {
  margin: 34px 0 0; padding-top: 24px; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between;
  font-size: 12px; color: var(--bone-3);
}

/* ---- 15. 询价弹窗 ------------------------------------------------------- */
.modal {
  position: fixed; inset: 0; z-index: 950; display: none;
  align-items: center; justify-content: center; padding: 24px;
  background: rgba(4, 4, 6, .82); backdrop-filter: blur(6px);
}
.modal.is-open { display: flex; }
.modal-box {
  width: 100%; max-width: 620px; max-height: 88vh; overflow-y: auto;
  background: var(--ink-1); border: 1px solid var(--line-2); padding: 38px 36px;
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
  animation: modalIn .3s cubic-bezier(.2,.8,.3,1);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
.modal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 28px; }
.modal-head h3 { margin: 0; font-size: 24px; font-weight: 800; letter-spacing: .04em; }
.modal-head p { margin: 8px 0 0; font-size: 13px; color: var(--blood-2); font-family: var(--font-display); letter-spacing: .18em; text-transform: uppercase; }
.modal-close { font-size: 22px; line-height: 1; color: var(--bone-3); padding: 4px 8px; }
.modal-close:hover { color: var(--blood-2); }

/* ---- 16. 滚动入场动画 --------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.3,1); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }
.reveal[data-d="4"] { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { 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 { --gut: 28px; }
  .section { padding: 90px 0; }
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .svc-card:nth-child(n) { grid-column: span 1; min-height: 340px; }
  .cov-wrap, .about-wrap, .quote-wrap { grid-template-columns: 1fr; gap: 40px; }
  .cov-list { grid-template-columns: repeat(2, 1fr); }
  .media-grid { grid-template-columns: 1fr; }
  .quote-side { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 32px; }
  .ops-track { grid-template-columns: 1fr 1fr; gap: 34px 20px; }
  .ops-track::before { display: none; }
  .plans { grid-template-columns: 1fr; }
  .stats .shell { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }

  .nav-links.is-open {
    display: flex; position: absolute; top: 78px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0; margin: 0;
    background: rgba(8, 8, 10, .98); border-bottom: 1px solid var(--line);
    padding: 10px 0;
  }
  .nav-links.is-open a { padding: 15px var(--gut); font-size: 16px; }
  .nav-links.is-open a::after { display: none; }
}

@media (max-width: 700px) {
  :root { --gut: 20px; --cut: 14px; }
  body { font-size: 15px; }
  .section { padding: 72px 0; }
  .hero { padding-top: 120px; min-height: auto; padding-bottom: 56px; }
  .hero-foot { flex-direction: column; align-items: flex-start; gap: 16px; }
  .svc-grid, .cov-list, .form-grid { grid-template-columns: 1fr; }
  .about-facts { grid-template-columns: 1fr; }
  .ops-track { grid-template-columns: 1fr; }
  .stats .shell { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--line); }
  .brand-plate img { height: 30px; }
  .modal-box { padding: 28px 22px; }

  .nav .shell { gap: 14px; }
  .brand-logo { height: 32px; }
  .nav-tools { gap: 8px; }
  .lang button { padding: 6px 9px; font-size: 11px; letter-spacing: .06em; }
  #navCta { padding: 9px 13px; font-size: 12px; letter-spacing: .04em; }
  .nav-burger { padding: 6px; }

  .cov-map .m-lab { font-size: 26px; }
  .cov-map .m-sub { font-size: 17px; letter-spacing: 2.4px; }
  .cov-map .m-axis { font-size: 16px; }
  .cov-map .m-hud { font-size: 16px; }
  .cov-map .m-dot { r: 9px; }
  .cov-map .m-core { r: 3px; }
  .cov-map .cov-pulse { r: 21px; }
  .cov-hint { font-size: 12px; left: 14px; top: 12px; }
}