/* ==========================================================================
   胜天国际 · 共享站点样式  /assets/site.css
   色彩：苍穹蓝 / 草原青 / 暖金 / 砖红 / 云白 / 米砂 / 墨蓝黑 / 远山灰蓝 / 湖光浅青
   ========================================================================== */

:root{
  --c-blue:#123C7A;
  --c-blue-deep:#0C2A57;
  --c-teal:#0F8A75;
  --c-gold:#E3A83B;
  --c-brick:#B8472E;
  --c-paper:#F4F6F2;
  --c-sand:#EAE3D6;
  --c-ink:#101B26;
  --c-mist:#6C8AA6;
  --c-mint:#D6EFE7;
  --grad-brand:linear-gradient(135deg,#0F8A75 0%,#123C7A 100%);
  --grad-head:linear-gradient(118deg,#0F8A75 0%,#123C7A 48%,#0C2A57 100%);

  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC",STSong,SimSun,serif;
  --font-body:"Source Han Serif SC","Noto Serif SC","Songti SC",STSong,SimSun,serif;
  --font-sans:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",SFMono-Regular,Consolas,"Liberation Mono",monospace;

  --wrap:1240px;
  --gutter:clamp(16px,4vw,40px);
  --gap:24px;
  --dur:280ms;
  --ease:cubic-bezier(.22,.61,.36,1);
  --line:rgba(108,138,166,.32);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:3px solid var(--c-gold);outline-offset:3px;border-radius:2px;}
#main-content{scroll-margin-top:110px;}

/* ---------- 跳过链接 ---------- */
.skip-link{
  position:absolute;
  left:14px;
  top:-72px;
  z-index:220;
  padding:12px 22px;
  background:var(--c-gold);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:800;
  letter-spacing:.04em;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);
  transition:top var(--dur) var(--ease);
}
.skip-link:focus{top:14px;}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:var(--grad-head);
  color:var(--c-paper);
  border-bottom:2px solid var(--c-gold);
}
.header-rail{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:13px var(--gutter);
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,32px);
}
.brand-lockup{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--c-paper);
  color:var(--c-blue);
  font-family:var(--font-display);
  font-size:22px;font-weight:900;line-height:1;
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
  box-shadow:inset 0 0 0 2px rgba(227,168,59,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-name{
  font-family:var(--font-sans);
  font-size:19px;
  font-weight:800;
  letter-spacing:.04em;
  color:#fff;
}
.brand-tagline{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:rgba(244,246,242,.7);
}
.header-end{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,22px);
  min-width:0;
}

/* 新版 / 旧版 分段控件 */
.view-switch{
  display:inline-flex;
  align-items:center;
  gap:2px;
  padding:3px;
  flex:0 0 auto;
  border:1px solid rgba(244,246,242,.36);
  background:rgba(16,27,38,.26);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.view-switch__btn{
  padding:7px 13px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.14em;
  color:rgba(244,246,242,.76);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.view-switch__btn:hover{color:#fff;background:rgba(244,246,242,.14);}
.view-switch__btn.is-active{
  background:var(--c-gold);
  color:var(--c-ink);
  font-weight:700;
}

/* 主导航 */
.header-nav{display:flex;align-items:center;gap:clamp(6px,1vw,16px);min-width:0;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-list__link{
  position:relative;
  display:block;
  padding:9px 12px;
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  color:rgba(244,246,242,.86);
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-list__link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;
  height:2px;
  background:var(--c-gold);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.nav-list__link:hover{color:#fff;background:rgba(244,246,242,.1);}
.nav-list__link:hover::after,
.nav-list__link[aria-current="page"]::after{transform:scaleX(1);}
.nav-list__link[aria-current="page"]{color:#fff;font-weight:800;}

.nav-cta{
  display:flex;
  align-items:center;
  gap:8px;
  padding-left:clamp(8px,1.2vw,16px);
  border-left:1px solid rgba(244,246,242,.24);
}

/* 移动端按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  flex:0 0 auto;
  border:1px solid rgba(244,246,242,.42);
  color:var(--c-paper);
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:800;
  letter-spacing:.04em;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:background var(--dur) var(--ease);
}
.nav-toggle:hover{background:rgba(244,246,242,.14);}
.nav-toggle__bars{display:grid;gap:3px;width:18px;}
.nav-toggle__bars i{
  display:block;height:2px;background:currentColor;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(5px) rotate(38deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-5px) rotate(-38deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 20px;
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:800;
  line-height:1.2;
  letter-spacing:.03em;
  white-space:nowrap;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn--gold{background:var(--c-gold);color:var(--c-ink);}
.btn--gold:hover{background:#F0B64D;transform:translateY(-2px);}
.btn--outline{border:1px solid rgba(244,246,242,.55);color:var(--c-paper);}
.btn--outline:hover{background:rgba(244,246,242,.16);transform:translateY(-2px);}
.btn--blue{background:var(--c-blue);color:var(--c-paper);}
.btn--blue:hover{background:#17509E;transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--c-ink);
  color:rgba(244,246,242,.8);
  font-family:var(--font-sans);
  margin-top:clamp(40px,6vw,88px);
}
.site-footer::before{
  content:"";
  display:block;
  height:4px;
  background:var(--grad-brand);
}
.footer-grid{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:clamp(38px,5.5vw,68px) var(--gutter) clamp(24px,3.5vw,38px);
  display:grid;
  gap:clamp(24px,3vw,40px);
  grid-template-columns:minmax(230px,1.5fr) repeat(3,minmax(140px,1fr));
}
.footer-col{min-width:0;}
.footer-col__title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.2em;
  color:var(--c-gold);
}
.footer-brand{display:flex;flex-direction:column;gap:10px;}
.footer-brand__name{
  font-size:21px;
  font-weight:800;
  letter-spacing:.05em;
  color:#fff;
}
.footer-brand__line{
  max-width:34ch;
  font-size:14.5px;
  line-height:1.75;
  color:rgba(244,246,242,.7);
}
.footer-brand__seal{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:rgba(214,239,231,.72);
}
.footer-links{display:grid;gap:9px;}
.footer-links a{
  display:inline-block;
  font-size:14.5px;
  color:rgba(244,246,242,.78);
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-links a:hover,
.footer-links a[aria-current="page"]{color:var(--c-gold);transform:translateX(3px);}

.footer-legacy{display:grid;gap:9px;}
.footer-legacy__item{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:14px;
  color:rgba(244,246,242,.66);
}
.footer-legacy__item::before{
  content:"";
  width:7px;height:7px;flex:0 0 auto;
  background:var(--c-brick);
  transform:rotate(45deg);
}
.footer-legacy__meta{
  margin-top:12px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:rgba(108,138,166,.9);
}

.footer-contact{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:26px var(--gutter) clamp(24px,3.5vw,38px);
  border-top:1px dashed rgba(244,246,242,.2);
  display:grid;
  gap:14px 34px;
  grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
}
.footer-contact__row{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px;
  font-size:14.5px;
  color:rgba(244,246,242,.82);
}
.footer-contact__key{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.18em;
  color:var(--c-teal);
  background:rgba(15,138,117,.18);
  padding:2px 8px;
  clip-path:polygon(5px 0,100% 0,100% calc(100% - 5px),calc(100% - 5px) 100%,0 100%,0 5px);
}
.footer-contact__note{
  grid-column:1 / -1;
  font-size:13.5px;
  line-height:1.8;
  color:rgba(244,246,242,.58);
}
.footer-bottom{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding:18px var(--gutter) 28px;
  border-top:1px solid rgba(244,246,242,.14);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  color:rgba(244,246,242,.52);
}
.footer-bottom__legal{color:rgba(244,246,242,.76);}
.footer-bottom__meta{color:rgba(244,246,242,.52);}

/* ---------- 通用容器与区块 ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(46px,7vw,96px);}
.section--deep{background:var(--c-blue);color:var(--c-paper);}
.section--sand{background:var(--c-sand);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.2em;
  color:var(--c-teal);
}
.eyebrow::before{
  content:"";
  width:26px;height:2px;
  background:var(--c-gold);
  flex:0 0 auto;
}
.section--deep .eyebrow{color:var(--c-mint);}

.section-title{
  position:relative;
  padding-left:20px;
  font-family:var(--font-sans);
  font-size:clamp(26px,3.6vw,36px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.01em;
  color:var(--c-ink);
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:7px;bottom:7px;
  width:7px;
  background:linear-gradient(180deg,var(--c-teal),var(--c-blue));
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
}
.section--deep .section-title{color:var(--c-paper);}

.lede{
  max-width:60ch;
  font-size:clamp(16px,1.6vw,18px);
  line-height:1.85;
  color:#33414F;
}
.section--deep .lede{color:rgba(244,246,242,.84);}

.mono{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.06em;
}

/* ---------- 面板（Bento 块） ---------- */
.panel{
  position:relative;
  padding:clamp(20px,2.6vw,30px);
  background:#fff;
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.panel--focus{
  background:var(--grad-brand);
  color:var(--c-paper);
  border-color:transparent;
}
.panel--quiet{
  background:var(--c-sand);
  border-color:rgba(16,27,38,.12);
}

/* ---------- 图片容器基础规则 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  background:var(--c-sand);
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,22px 100%,0 calc(100% - 22px));
}
.media-frame > img,
.media-frame > svg{
  width:100%;
  height:100%;
  object-fit:cover;
  aspect-ratio:16 / 10;
}
.media-frame--tall > img,
.media-frame--tall > svg{aspect-ratio:3 / 4;}
.media-frame--wide > img,
.media-frame--wide > svg{aspect-ratio:21 / 9;}
.media-frame__caption{
  position:absolute;
  left:0;bottom:0;
  padding:7px 14px;
  background:rgba(16,27,38,.8);
  color:var(--c-paper);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  clip-path:polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px);
}
.tag--new{background:var(--c-mint);color:#0B5C4E;}
.tag--legacy{background:#F6DCD5;color:#8E3520;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--c-mist);
}
.breadcrumb a{color:var(--c-blue);}
.breadcrumb a:hover{color:var(--c-teal);text-decoration:underline;text-underline-offset:4px;}
.breadcrumb__sep{color:rgba(108,138,166,.65);}

/* ---------- 标签页 ---------- */
.tabs{width:100%;}
.tab-list{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  border-bottom:2px solid rgba(108,138,166,.3);
}
.tab-btn{
  position:relative;
  padding:10px 18px;
  font-family:var(--font-sans);
  font-size:15px;
  font-weight:800;
  color:var(--c-mist);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.tab-btn:hover{color:var(--c-blue);background:rgba(214,239,231,.6);}
.tab-btn[aria-selected="true"]{color:var(--c-blue);}
.tab-btn[aria-selected="true"]::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:3px;
  background:var(--c-gold);
}
.tab-panel{padding-top:22px;}
.tab-panel[hidden]{display:none !important;}

/* ---------- 网格与显现 ---------- */
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gap);
}
.reveal{opacity:1;transform:none;}
.js-ready .reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity 360ms var(--ease),transform 360ms var(--ease);
}
.js-ready .reveal.is-visible{opacity:1;transform:none;}

/* ---------- 响应式：平板 ---------- */
@media (max-width:1080px){
  .brand-tagline{display:none;}
  .nav-list__link{padding:9px 10px;font-size:14.5px;}
}

@media (max-width:960px){
  .nav-toggle{display:inline-flex;}
  .view-switch__btn{padding:6px 10px;font-size:11.5px;letter-spacing:.1em;}

  .header-nav{
    position:absolute;
    left:0;right:0;top:100%;
    display:grid;
    gap:0;
    padding:8px var(--gutter) 22px;
    background:linear-gradient(160deg,#0F8A75 0%,#123C7A 100%);
    border-bottom:2px solid var(--c-gold);
    max-height:calc(100vh - 72px);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(-14px);
    transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) linear;
  }
  .header-nav[data-open]{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:none;
  }
  .nav-list{display:grid;gap:0;}
  .nav-list__link{
    padding:14px 12px;
    font-size:17px;
    border-bottom:1px solid rgba(244,246,242,.14);
  }
  .nav-list__link::after{display:none;}
  .nav-list__link[aria-current="page"]{
    background:rgba(227,168,59,.18);
    color:var(--c-gold);
  }
  .nav-cta{
    padding:16px 0 0;
    border-left:0;
    flex-wrap:wrap;
  }

  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr));}
}

/* ---------- 响应式：手机 ---------- */
@media (max-width:760px){
  body{font-size:16.5px;}
  .grid-12{grid-template-columns:minmax(0,1fr);}
  .header-rail{padding:11px var(--gutter);gap:10px;}
  .brand-mark{width:36px;height:36px;font-size:19px;}
  .brand-name{font-size:17px;}
  .media-frame__caption{font-size:11px;letter-spacing:.05em;}
}

@media (max-width:560px){
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .nav-cta .btn{flex:1 1 auto;justify-content:center;}
}

@media (max-width:400px){
  .view-switch__btn{padding:6px 8px;font-size:11px;letter-spacing:.06em;}
  .nav-toggle__text{display:none;}
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .js-ready .reveal{opacity:1;transform:none;}
}