*,*::before,*::after{box-sizing:border-box}
:root{
  --red:#C8102E;--red-dark:#8A0A1F;--red-soft:#FBE1E5;
  --paper:#F6F1E9;--white:#FFFFFF;
  --navy:#0B1F3A;--navy-2:#1B3F6B;--ink:#0B1F3A;--ink-soft:#3C4C63;
  --green:#1F7A4D;--gold:#E8B23A;--mist:#D8E0E8;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",ui-monospace,"Cascadia Mono",Menlo,Consolas,monospace;
  --maxw:1180px;--ease:cubic-bezier(.22,1,.36,1);
  --shadow-card:0 12px 26px -18px rgba(11,31,58,.55);
  --shadow-capsule:0 10px 30px -18px rgba(11,31,58,.55);
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:104px}
body{
  margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.75;color:var(--ink);
  background-color:var(--paper);
  background-image:linear-gradient(180deg,#FBF7F1 0,rgba(251,247,241,0) 160px);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{margin:0;font-weight:900;letter-spacing:-.01em;line-height:1.18}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg{display:block;max-width:100%}
img{height:auto}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:6px}
.site-footer :focus-visible{outline-color:var(--gold)}
::selection{background:var(--red);color:#fff}

/* ---------- 容器与区块 ---------- */
.page-shell,.container{width:min(100% - 32px,var(--maxw));margin-inline:auto}
.section{padding:56px 0;position:relative}
.section--dark{background:var(--navy);color:#E7EFF7}
.section--dark .section__title,.section--dark .prose{color:#fff}
.section--paper{background:linear-gradient(180deg,var(--paper),#FFF9F3)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:800;
  letter-spacing:.2em;text-transform:uppercase;color:var(--red);margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--red)}
.section__title{font-size:clamp(24px,3.2vw,34px);color:var(--navy);letter-spacing:-.015em}
.section__lead{margin-top:10px;max-width:56ch;font-size:15.5px;color:var(--ink-soft)}
.section--dark .section__lead{color:#B9CBDE}

/* ---------- 网格 ---------- */
.grid{display:grid;gap:18px}
.grid--bento{grid-template-columns:repeat(12,minmax(0,1fr))}
.grid--split{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--trio{grid-template-columns:repeat(3,minmax(0,1fr))}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:999px;border:2px solid transparent;
  font-size:15px;font-weight:800;line-height:1;letter-spacing:.01em;
  transition:transform .18s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:active{transform:scale(.98)}
.btn--red{background:var(--red);color:#fff;box-shadow:0 12px 26px -14px rgba(200,16,46,.85)}
.btn--red:hover{background:var(--red-dark)}
.btn--navy{background:var(--navy);color:#fff}
.btn--navy:hover{background:var(--navy-2)}
.btn--gold{background:var(--gold);color:var(--navy)}
.btn--gold:hover{background:#F2C558}
.btn--ghost{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn--ghost:hover{background:var(--navy);color:#fff}

/* ---------- 面包屑 ---------- */
.breadcrumb{width:min(100% - 32px,var(--maxw));margin:20px auto 0;font-size:12.5px}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:6px;color:var(--navy-2)}
.breadcrumb__item{display:inline-flex;align-items:center;gap:6px}
.breadcrumb__item + .breadcrumb__item::before{content:"›";color:#9FB0C2;font-weight:700}
.breadcrumb__link{color:var(--navy-2);text-decoration:underline;text-decoration-color:var(--mist);text-underline-offset:3px}
.breadcrumb__link:hover{color:var(--red);text-decoration-color:var(--red)}
.breadcrumb__current{color:var(--red);font-weight:800}

/* ---------- 正文 ---------- */
.prose{max-width:68ch;font-size:16px;line-height:1.8;color:var(--ink-soft)}
.prose p + p{margin-top:1em}
.prose h2{font-size:clamp(22px,2.6vw,28px);color:var(--navy);margin:1.6em 0 .55em}
.prose h3{font-size:20px;color:var(--navy);margin:1.35em 0 .5em}
.prose ul{display:grid;gap:.5em;margin-top:.8em}
.prose li{position:relative;padding-left:18px}
.prose li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:3px;border-radius:2px;background:var(--red)}
.prose a{color:var(--red);text-decoration:underline;text-underline-offset:3px}

/* ---------- 切角卡片 ---------- */
.cut-card{
  --cut:24px;position:relative;background:#fff;border:1px solid var(--mist);
  border-radius:14px;padding:22px 20px 20px;
  clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,0 100%);
  filter:drop-shadow(0 12px 22px rgba(11,31,58,.12));
}
.cut-card::before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:linear-gradient(90deg,var(--red),var(--red-dark))}
.cut-card__label{display:block;font-size:11px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--navy-2);opacity:.8}
.cut-card__title{margin-top:8px;font-size:19px;color:var(--navy)}
.cut-card__text{margin-top:8px;font-size:14.5px;line-height:1.7;color:var(--ink-soft)}

/* ---------- 图像容器（页面阶段放占位/图片） ---------- */
.media-frame{
  position:relative;overflow:hidden;border-radius:16px;border:1px solid var(--mist);
  aspect-ratio:16/10;background:linear-gradient(150deg,var(--red-soft),#DCE6F0 42%,var(--navy) 100%);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--cut{clip-path:polygon(0 0,calc(100% - 28px) 0,100% 28px,100% 100%,0 100%)}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame__placeholder{
  position:absolute;inset:0;display:grid;place-items:center;padding:16px;
  font-size:12px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:rgba(255,255,255,.86);text-align:center;
}
.media-frame__tag{
  position:absolute;left:12px;bottom:12px;z-index:2;
  padding:5px 10px;border-radius:999px;background:rgba(11,31,58,.84);color:#fff;
  font-size:11px;font-weight:800;letter-spacing:.1em;
}

/* ---------- 数字与分隔 ---------- */
.stat-figure,.num{
  font-family:var(--font-mono);font-weight:700;font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;font-size:1.25em;line-height:1;
}
.stripe-divider{height:6px;border-radius:3px;background:repeating-linear-gradient(108deg,var(--red) 0 10px,#fff 10px 20px)}

/* ---------- 共享头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;padding-bottom:14px;
  background:linear-gradient(180deg,rgba(246,241,233,.97) 0,rgba(246,241,233,.86) 58%,rgba(246,241,233,0) 100%);
}
.stripe-rail{
  height:8px;
  background-image:repeating-linear-gradient(108deg,var(--red) 0 14px,#fff 14px 28px);
  background-size:56px 100%;
  animation:railDrift 9s linear infinite;
  box-shadow:0 1px 0 rgba(11,31,58,.14);
}
@keyframes railDrift{from{background-position-x:0}to{background-position-x:56px}}
.skip-link{
  position:absolute;left:16px;top:8px;z-index:200;
  padding:10px 18px;border-radius:0 0 12px 12px;background:var(--navy);color:#fff;
  font-size:13px;font-weight:800;transform:translateY(-160%);
  transition:transform .2s var(--ease);
}
.skip-link:focus-visible{transform:translateY(0);outline-offset:2px}

.kit-capsule{
  position:relative;width:min(100% - 24px,var(--maxw));margin:10px auto 0;
  display:flex;align-items:center;gap:16px;padding:10px 12px 10px 14px;
  background:var(--white);border:1px solid var(--mist);border-radius:999px;
  box-shadow:var(--shadow-capsule);
  transition:width .32s var(--ease),padding .32s var(--ease),box-shadow .32s var(--ease),border-color .32s var(--ease);
}
.site-header[data-shrunk] .kit-capsule{
  width:min(100% - 24px,1024px);padding:7px 10px 7px 12px;
  box-shadow:0 16px 34px -20px rgba(11,31,58,.72);border-color:#C6D2DE;
}
.kit-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.kit-brand__mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:11px;
  background-image:repeating-linear-gradient(108deg,var(--red) 0 5px,#fff 5px 10px);
  border:2px solid var(--navy);position:relative;overflow:hidden;
  transition:transform .3s var(--ease);
}
.kit-brand__mark::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--navy)}
.kit-brand:hover .kit-brand__mark{transform:rotate(-6deg) scale(1.04)}
.kit-brand__text{display:flex;flex-direction:column;line-height:1.15}
.kit-brand__name{font-size:16px;font-weight:900;letter-spacing:-.015em;color:var(--navy);white-space:nowrap}
.kit-brand__name em{
  font-style:normal;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:var(--red);margin-left:4px;vertical-align:2px;
}
.kit-brand__signature{
  display:block;height:14px;margin-top:3px;font-size:10.5px;letter-spacing:.14em;
  color:var(--navy-2);opacity:.72;white-space:nowrap;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.site-header[data-shrunk] .kit-brand__signature{opacity:0;visibility:hidden}

.kit-nav{display:flex;flex:1 1 auto;align-items:center;justify-content:space-between;gap:12px;min-width:0}
.kit-nav__list{display:flex;align-items:center;gap:2px}
.kit-nav__item{display:block}
.kit-nav__link{
  position:relative;display:inline-block;padding:8px 10px;border-radius:10px;
  font-size:14px;font-weight:700;color:var(--navy);white-space:nowrap;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.kit-nav__link:hover{color:var(--red);background:var(--red-soft)}
.kit-nav__link[aria-current="page"]{color:var(--red)}
.kit-nav__link[aria-current="page"]::after{
  content:"";position:absolute;left:10px;right:10px;bottom:3px;height:3px;
  border-radius:2px;background:var(--red);
}
.kit-nav__utility{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.kit-chip{
  display:inline-flex;align-items:center;padding:6px 11px;border-radius:999px;
  background:var(--paper);border:1px solid var(--mist);color:var(--navy-2);
  font-size:12px;font-weight:700;white-space:nowrap;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.kit-chip:hover{color:var(--red);border-color:var(--red);background:#fff}
.kit-chip:active{transform:scale(.98)}
.kit-cta{
  display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:999px;
  background:var(--red);color:#fff;font-size:13.5px;font-weight:800;white-space:nowrap;
  box-shadow:0 10px 20px -12px rgba(200,16,46,.95);
  transition:background-color .2s var(--ease),transform .18s var(--ease),color .2s var(--ease);
}
.kit-cta:hover{background:var(--red-dark)}
.kit-cta:active{transform:scale(.98)}

.kit-nav-toggle{
  display:none;align-items:center;gap:9px;padding:9px 14px;border-radius:999px;
  background:var(--navy);color:#fff;font-size:12.5px;font-weight:800;letter-spacing:.08em;
  transition:background-color .2s var(--ease),transform .18s var(--ease);
}
.kit-nav-toggle:hover{background:var(--navy-2)}
.kit-nav-toggle:active{transform:scale(.98)}
.kit-nav-toggle__bars{
  display:block;width:16px;height:2px;border-radius:2px;background:currentColor;position:relative;
  transition:background-color .2s var(--ease);
}
.kit-nav-toggle__bars::before,.kit-nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:currentColor;
  transition:transform .24s var(--ease);
}
.kit-nav-toggle__bars::before{top:-5px}
.kit-nav-toggle__bars::after{top:5px}
.kit-nav-toggle[aria-expanded="true"] .kit-nav-toggle__bars{background:transparent}
.kit-nav-toggle[aria-expanded="true"] .kit-nav-toggle__bars::before{transform:translateY(5px) rotate(45deg)}
.kit-nav-toggle[aria-expanded="true"] .kit-nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg)}
.kit-nav-toggle__label{line-height:1}

/* 返回顶部 */
.scroll-sentinel{
  position:fixed;right:16px;bottom:18px;z-index:70;
  width:52px;height:52px;border-radius:50%;
  display:grid;place-items:center;background:var(--navy);color:#fff;
  box-shadow:0 18px 32px -18px rgba(11,31,58,.9);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s var(--ease),background-color .2s var(--ease);
}
.scroll-sentinel[data-visible]{opacity:1;visibility:visible;transform:none}
.scroll-sentinel:hover{background:var(--navy-2)}
.scroll-sentinel__ring{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}
.scroll-sentinel__track{fill:none;stroke:rgba(255,255,255,.22);stroke-width:3}
.scroll-sentinel__meter{
  fill:none;stroke:var(--gold);stroke-width:3;stroke-linecap:round;
  stroke-dasharray:132;stroke-dashoffset:132;
}
.scroll-sentinel__arrow{font-size:16px;font-weight:800;line-height:1}

/* ---------- 共享页脚 ---------- */
.site-footer{position:relative;background:var(--navy);color:#E7EFF7;margin-top:8px}
.footer-stripe{height:8px;background-image:repeating-linear-gradient(108deg,var(--red) 0 14px,#fff 14px 28px)}
.footer-inner{
  width:min(100% - 32px,var(--maxw));margin-inline:auto;
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1.45fr);
  gap:48px;padding:52px 0 44px;
}
.footer-brand__link{
  display:inline-flex;align-items:baseline;gap:6px;
  font-size:22px;font-weight:900;letter-spacing:-.02em;color:#fff;
}
.footer-brand__link em{
  font-style:normal;font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--gold);
}
.footer-brand__tag{display:block;margin-top:8px;font-size:11px;font-weight:800;letter-spacing:.2em;color:var(--gold)}
.footer-brand__summary{margin-top:14px;max-width:38ch;font-size:14.5px;line-height:1.8;color:#B9CBDE}
.footer-cta{
  display:inline-flex;align-items:center;margin-top:20px;padding:11px 20px;border-radius:999px;
  background:var(--red);color:#fff;font-size:14px;font-weight:800;
  box-shadow:0 12px 24px -14px rgba(200,16,46,.95);
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .18s var(--ease);
}
.footer-cta:hover{background:var(--gold);color:var(--navy)}
.footer-cta:active{transform:scale(.98)}
.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.footer-col__title{
  font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--gold);
  padding-bottom:10px;margin-bottom:14px;border-bottom:1px solid rgba(255,255,255,.16);
}
.footer-col__list{display:grid;gap:10px}
.footer-col__link{
  position:relative;display:inline-block;padding-left:14px;font-size:14px;color:#C6D6E5;
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-col__link::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:1px;
  background:var(--red);transform:rotate(45deg);transition:background-color .18s var(--ease);
}
.footer-col__link:hover{color:#fff;transform:translateX(2px)}
.footer-col__link:hover::before{background:var(--gold)}
.footer-meta{
  width:min(100% - 32px,var(--maxw));margin-inline:auto;
  display:grid;gap:10px;padding:22px 0 30px;
  border-top:1px solid rgba(255,255,255,.14);
}
.footer-contact{font-size:13px;line-height:1.9;color:#B9CBDE}
.footer-legal{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:12.5px;color:#8CA4BC}
.footer-legal span{position:relative}
.footer-base{height:6px;background:linear-gradient(90deg,var(--red-dark) 0,var(--red) 45%,var(--gold) 100%)}

/* ---------- 进场与数字 ---------- */
.js-reveal [data-reveal]{opacity:0;transform:translateY(16px)}
.js-reveal [data-reveal].is-revealed{
  opacity:1;transform:none;
  transition:opacity .32s var(--ease),transform .32s var(--ease);
  transition-delay:calc(var(--reveal-delay,0) * 1ms);
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .kit-nav-toggle{display:inline-flex}
  .kit-capsule{gap:10px;padding:9px 11px;border-radius:26px}
  .kit-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;z-index:5;
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:14px;
    padding:16px;background:#fff;border:1px solid var(--mist);
    border-radius:22px;box-shadow:0 26px 54px -28px rgba(11,31,58,.76);
    opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px) scale(.99);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
    clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%);
  }
  .site-header[data-open] .kit-nav{opacity:1;visibility:visible;pointer-events:auto;transform:none}
  .site-header[data-open] .kit-capsule{border-color:#B9C8D6}
  .kit-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .kit-nav__link{display:block;padding:12px;font-size:15px;border-radius:12px}
  .kit-nav__link[aria-current="page"]{background:var(--red-soft)}
  .kit-nav__link[aria-current="page"]::after{left:12px;right:auto;width:18px;bottom:6px}
  .kit-nav__utility{flex-wrap:wrap;padding-top:12px;border-top:1px solid var(--mist)}
  .kit-cta{flex:1 1 100%;justify-content:center;padding:11px 16px}
}
@media (max-width:880px){
  .footer-inner{grid-template-columns:minmax(0,1fr);gap:34px;padding:44px 0 36px}
  .grid--bento,.grid--split,.grid--trio{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:44px 0}
}
@media (max-width:600px){
  .grid--bento,.grid--split,.grid--trio{grid-template-columns:minmax(0,1fr)}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .footer-col__title{font-size:11.5px}
  .scroll-sentinel{width:46px;height:46px;right:12px;bottom:14px}
  .cut-card{--cut:20px;padding:20px 16px 18px}
}
@media (max-width:420px){
  .kit-brand__signature{display:none}
  .kit-brand__mark{width:30px;height:30px;flex-basis:30px}
  .kit-nav-toggle__label{display:none}
  .kit-nav-toggle{padding:9px 11px}
  .footer-cols{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .stripe-rail{animation:none}
  .js-reveal [data-reveal]{opacity:1;transform:none}
}