/* 米兰赛场 · 共享站点样式 /assets/site.css
   顺序：变量 → reset → 排版 → 容器与分区 → 通用组件 → 头部 → 页脚 → 响应式 → 动效偏好 */

:root{
  --ink:#0D0D0F;
  --char:#1B1B1F;
  --paper:#F3EEE6;
  --edge:#D8D1C6;
  --crimson:#8E1B22;
  --red:#C8102E;
  --amber:#F5B301;
  --pitch:#2F6B3F;
  --mute:#7A7570;
  --white:#FBFAF7;

  --f-display:'Archivo Narrow','Oswald','PingFang SC','Noto Sans SC','Microsoft YaHei',sans-serif;
  --f-num:'JetBrains Mono','Roboto Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --f-body:'PingFang SC','Noto Sans SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;

  --w:1240px;
  --pad:clamp(18px,4vw,40px);
  --edge-dark:1px solid rgba(243,238,230,.14);
  --edge-light:1px solid rgba(13,13,15,.16);
  --speed:160ms;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-family:var(--f-display);font-weight:700;letter-spacing:-.02em;line-height:1.12;}
h2{font-size:clamp(1.5rem,2.6vw,2.2rem);}
h3{font-size:clamp(1.1rem,1.8vw,1.35rem);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;}
img,svg{display:block;max-width:100%;}
button{font:inherit;color:inherit;}
hr{border:0;}
::selection{background:var(--amber);color:var(--ink);}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;}

/* 容器与分区 */
.m-container{width:100%;max-width:var(--w);margin-inline:auto;padding-inline:var(--pad);}
.m-section{position:relative;padding-block:clamp(48px,7vw,96px);}
.m-section--paper{background:var(--paper);color:var(--ink);}
.m-section--char{background:var(--char);color:var(--paper);}
.m-section--ink{background:var(--ink);color:var(--paper);}
.m-band{
  position:relative;
  height:14px;
  background:var(--ink);
  overflow:hidden;
}
.m-band::before{content:"";position:absolute;inset:0 78% 0 0;background:var(--crimson);}
.m-band::after{content:"";position:absolute;inset:0 0 0 92%;background:var(--amber);}
.m-rule{height:1px;background:var(--edge);opacity:.6;margin-block:clamp(20px,3vw,32px);}

/* 排版零件 */
.m-display{font-family:var(--f-display);font-weight:700;font-size:clamp(2.6rem,6.4vw,5rem);line-height:.98;letter-spacing:-.02em;}
.m-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--f-num);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--mute);
}
.m-eyebrow::before{content:"";width:22px;height:1px;background:currentColor;opacity:.7;}
.m-num{font-family:var(--f-num);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.m-caption{font-size:12px;letter-spacing:.06em;color:var(--mute);}
.m-note{font-size:13px;line-height:1.7;color:var(--mute);max-width:62ch;}
.m-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:2px 8px;
  font-family:var(--f-num);font-size:11px;letter-spacing:.1em;line-height:1.7;
  border:1px solid currentColor;
  white-space:nowrap;
}
.m-tag--red{background:var(--crimson);border-color:var(--crimson);color:var(--paper);}
.m-tag--amber{background:var(--amber);border-color:var(--amber);color:var(--ink);}
.m-tag--green{background:var(--pitch);border-color:var(--pitch);color:var(--paper);}
.m-tag--line{background:transparent;color:var(--mute);border-color:var(--edge);}

/* 按钮 */
.m-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 18px;
  font-size:13px;letter-spacing:.06em;line-height:1.4;
  background:var(--crimson);color:var(--paper);
  border:1px solid var(--crimson);
  cursor:pointer;
  transition:transform var(--speed) ease,background var(--speed) ease,border-color var(--speed) ease,color var(--speed) ease;
}
.m-btn:hover{transform:translateY(-2px);background:var(--red);border-color:var(--red);}
.m-btn--red{background:var(--red);border-color:var(--red);}
.m-btn--red:hover{background:var(--crimson);border-color:var(--crimson);}
.m-btn--ghost{background:transparent;border-color:rgba(243,238,230,.42);color:var(--paper);}
.m-btn--ghost:hover{background:rgba(245,179,1,.12);border-color:var(--amber);color:var(--amber);}
.m-btn--line{background:transparent;border-color:rgba(13,13,15,.3);color:var(--ink);}
.m-btn--line:hover{background:var(--ink);border-color:var(--ink);color:var(--paper);}
.m-btn--sm{padding:6px 11px;font-size:12px;letter-spacing:.1em;}

/* 纸张卡片与网格 */
.m-paper{
  background:var(--paper);color:var(--ink);
  border:1px solid var(--edge);
  box-shadow:8px 8px 0 rgba(216,209,198,.28);
  padding:clamp(18px,2.4vw,30px);
}
.m-grid{display:grid;gap:clamp(20px,3vw,36px);}
.m-grid--split{grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:start;}

/* 面包屑 */
.m-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--f-num);font-size:11.5px;letter-spacing:.1em;color:var(--mute);}
.m-breadcrumb__link{color:inherit;border-bottom:1px solid transparent;transition:color var(--speed) ease,border-color var(--speed) ease;}
.m-breadcrumb__link:hover{color:var(--red);border-bottom-color:var(--red);}
.m-breadcrumb__sep{color:var(--edge);}

/* 图片容器（页面阶段放 img 或背景） */
.m-figure{margin:0;}
.m-figure__frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16 / 9;
  background:var(--char);
  border:1px solid var(--edge);
}
.m-figure__frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    repeating-linear-gradient(90deg,rgba(243,238,230,.08) 0 1px,transparent 1px 14.2857%),
    repeating-linear-gradient(0deg,rgba(243,238,230,.06) 0 1px,transparent 1px 25%);
}
.m-figure__img{width:100%;height:100%;object-fit:cover;filter:saturate(.68) contrast(1.06);}
.m-figure__caption{margin-top:8px;font-size:12px;letter-spacing:.08em;color:var(--mute);}
.m-figure--wide .m-figure__frame{aspect-ratio:21 / 9;}
.m-figure--tall .m-figure__frame{aspect-ratio:4 / 5;}
.m-figure--square .m-figure__frame{aspect-ratio:1 / 1;}
.m-figure--paper .m-figure__frame{border-color:var(--edge);background:var(--edge);}

/* 复制按钮 */
.m-copy{
  display:inline-flex;align-items:center;gap:4px;
  padding:2px 8px;
  font-family:var(--f-num);font-size:11px;letter-spacing:.08em;
  background:transparent;color:var(--mute);
  border:1px dashed var(--edge);
  cursor:pointer;
  transition:color var(--speed) ease,border-color var(--speed) ease;
}
.m-copy:hover{color:var(--crimson);border-color:var(--crimson);}
.m-copy[data-state="copied"]{color:var(--pitch);border-color:var(--pitch);border-style:solid;}
.m-copy[data-state="failed"]{color:var(--red);border-color:var(--red);}

/* 章节索引（左栏，滚动高亮） */
.m-spy{display:grid;gap:2px;}
.m-spy__link{
  display:block;
  padding:8px 0 8px 14px;
  border-left:1px solid var(--edge);
  font-size:13px;letter-spacing:.04em;color:var(--mute);
  transition:color var(--speed) ease,border-color var(--speed) ease,padding var(--speed) ease;
}
.m-spy__link:hover{color:var(--ink);border-left-color:var(--crimson);}
.m-spy__link.is-current{color:var(--ink);font-weight:600;border-left:3px solid var(--red);padding-left:12px;}

/* 滚动进度条（由 JS 生成） */
.m-progress{
  position:fixed;top:0;left:0;right:0;height:2px;
  background:var(--amber);
  transform:scaleX(0);transform-origin:0 50%;
  z-index:90;pointer-events:none;
  transition:transform 120ms linear;
}

/* 跳转链接 */
.m-skip{
  position:absolute;left:12px;top:-72px;z-index:200;
  padding:10px 16px;
  background:var(--amber);color:var(--ink);
  font-size:13px;letter-spacing:.08em;
  transition:top var(--speed) ease;
}
.m-skip:focus{top:12px;}

/* ===== 头部 ===== */
.m-header{
  position:relative;z-index:100;
  background:var(--ink);
  border-bottom:var(--edge-dark);
}
.m-ticker{background:var(--crimson);box-shadow:inset 0 -2px 0 var(--red);}
.m-ticker__inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:42px;padding-block:5px;
}
.m-ticker__list{display:flex;align-items:center;gap:clamp(10px,2vw,22px);overflow:hidden;}
.m-ticker__item{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--f-num);font-size:11px;letter-spacing:.14em;
  color:rgba(243,238,230,.88);
  white-space:nowrap;
}
.m-ticker__item + .m-ticker__item::before{content:"·";margin-right:10px;color:rgba(243,238,230,.5);}
.m-header__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(16px,3vw,48px);
  min-height:74px;padding-block:14px;
}
.m-brand{display:inline-flex;align-items:baseline;gap:10px;flex-shrink:0;}
.m-brand__mark{
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(1.15rem,2vw,1.5rem);
  letter-spacing:.02em;color:var(--paper);
  border-bottom:2px solid transparent;
  transition:border-color var(--speed) ease,color var(--speed) ease;
}
.m-brand__mark:hover{color:var(--white);border-bottom-color:var(--red);}
.m-brand__season{
  font-family:var(--f-num);font-size:11px;letter-spacing:.12em;
  padding:2px 7px;
  background:var(--crimson);color:var(--paper);
}
.m-nav__list{display:flex;align-items:center;gap:clamp(2px,1vw,10px);}
.m-nav__link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:7px;
  padding:10px 6px;
  font-size:13px;letter-spacing:.04em;
  color:rgba(243,238,230,.72);
  white-space:nowrap;
  transition:color var(--speed) ease;
}
.m-nav__link::after{
  content:"";position:absolute;left:6px;right:6px;bottom:2px;height:1px;
  background:var(--red);
  transform:scaleX(0);transform-origin:left center;
  transition:transform var(--speed) ease;
}
.m-nav__link:hover{color:var(--paper);}
.m-nav__link:hover::after{transform:scaleX(1);}
.m-nav__num{
  font-family:var(--f-num);font-size:11px;letter-spacing:.08em;
  color:var(--mute);
  border-bottom:2px solid transparent;
  padding-bottom:1px;
  transition:color var(--speed) ease,border-color var(--speed) ease;
}
.m-nav__link:hover .m-nav__num{color:var(--amber);}
.m-nav__link[aria-current="page"]{color:var(--paper);}
.m-nav__link[aria-current="page"] .m-nav__num{color:var(--amber);border-bottom-color:var(--amber);}
.m-nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:9px 12px;
  background:transparent;color:var(--paper);
  border:1px solid rgba(243,238,230,.28);
  font-size:12px;letter-spacing:.14em;
  cursor:pointer;
  transition:border-color var(--speed) ease,color var(--speed) ease;
}
.m-nav-toggle:hover{border-color:var(--amber);color:var(--amber);}
.m-nav-toggle__label{font-family:var(--f-num);}
.m-nav-toggle__bars{display:inline-flex;flex-direction:column;justify-content:center;gap:3px;width:16px;}
.m-nav-toggle__bars span{display:block;height:2px;background:currentColor;transition:transform var(--speed) ease,opacity var(--speed) ease;}
.m-nav-toggle[aria-expanded="true"] .m-nav-toggle__bars span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.m-nav-toggle[aria-expanded="true"] .m-nav-toggle__bars span:nth-child(2){opacity:0;}
.m-nav-toggle[aria-expanded="true"] .m-nav-toggle__bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

/* ===== 页脚 ===== */
.m-footer{
  background:var(--paper);color:var(--ink);
  border-top:1px solid var(--edge);
  padding-block:clamp(32px,5vw,58px) 20px;
}
.m-footer__inner{display:block;}
.m-footer__top{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:12px;
  padding-bottom:16px;
  border-bottom:3px solid var(--ink);
}
.m-footer__brand{font-family:var(--f-display);font-weight:700;font-size:clamp(1.4rem,3vw,2rem);letter-spacing:-.01em;}
.m-footer__tagline{font-family:var(--f-num);font-size:11.5px;letter-spacing:.14em;color:var(--mute);}
.m-footer__cols{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));
  gap:clamp(22px,3vw,44px);
  padding-block:clamp(22px,3vw,34px);
  border-bottom:1px solid var(--edge);
}
.m-footer__title{
  display:flex;align-items:center;gap:8px;
  font-family:var(--f-body);font-weight:600;
  font-size:13px;letter-spacing:.14em;
  margin-bottom:12px;color:var(--ink);
}
.m-footer__index{
  font-family:var(--f-num);font-size:11px;letter-spacing:.06em;
  padding:1px 5px;
  background:var(--crimson);color:var(--paper);
}
.m-footer__list{display:grid;gap:6px;font-size:14px;}
.m-footer__list--plain{gap:2px;}
.m-footer__link{
  color:var(--char);
  border-bottom:1px solid transparent;
  padding-bottom:1px;
  transition:color var(--speed) ease,border-color var(--speed) ease;
}
.m-footer__link:hover{color:var(--crimson);border-bottom-color:var(--crimson);}
.m-footer__col--contact .m-footer__contact{color:var(--char);}
.m-footer__contact{
  font-family:var(--f-num);font-size:12.5px;letter-spacing:.02em;line-height:1.95;
  word-break:break-all;
}
.m-footer__note{
  max-width:72ch;
  padding-block:18px 10px;
  font-size:12.5px;line-height:1.7;color:var(--mute);
}
.m-footer__meta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 20px;
  padding-top:12px;
  border-top:1px solid var(--edge);
}
.m-footer__legal{display:flex;flex-wrap:wrap;gap:8px 18px;}
.m-footer__legal-link{
  font-size:12px;letter-spacing:.08em;color:var(--char);
  border-bottom:1px solid var(--edge);
  transition:color var(--speed) ease,border-color var(--speed) ease;
}
.m-footer__legal-link:hover{color:var(--crimson);border-bottom-color:var(--red);}
.m-footer__icp{font-family:var(--f-num);font-size:11.5px;letter-spacing:.06em;color:var(--mute);}
.m-footer__copy{margin-top:14px;font-family:var(--f-num);font-size:11px;letter-spacing:.08em;color:var(--mute);}

/* ===== 响应式 ===== */
@media (max-width:1080px){
  .m-nav__link{font-size:12.5px;padding:10px 4px;}
  .m-nav__num{display:none;}
}
@media (max-width:900px){
  .m-header__inner{min-height:66px;padding-block:12px;}
  .m-nav-toggle{display:inline-flex;}
  .m-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;
    padding:6px var(--pad) 22px;
    background:var(--char);
    border-top:var(--edge-dark);
    border-bottom:4px solid var(--crimson);
    box-shadow:0 26px 44px rgba(0,0,0,.45);
  }
  .m-nav[data-open]{display:block;}
  .m-nav__list{flex-direction:column;align-items:stretch;gap:0;}
  .m-nav__item{border-bottom:1px solid rgba(243,238,230,.1);}
  .m-nav__item:last-child{border-bottom:0;}
  .m-nav__link{width:100%;padding:14px 2px;font-size:15px;gap:10px;}
  .m-nav__num{display:inline;font-size:11.5px;color:var(--mute);}
  .m-nav__link::after{left:2px;right:2px;bottom:6px;}
  .m-nav__link[aria-current="page"] .m-nav__num{border-bottom-color:var(--amber);color:var(--amber);}
  .m-grid--split{grid-template-columns:minmax(0,1fr);}
  .m-footer__top{border-bottom-width:2px;}
}
@media (max-width:720px){
  .m-ticker__item:nth-child(n+3){display:none;}
  .m-ticker__inner{gap:10px;}
  .m-brand__season{font-size:10px;padding:1px 6px;}
  .m-figure__frame{aspect-ratio:4 / 3;}
  .m-footer__meta{flex-direction:column;align-items:flex-start;}
}
@media (max-width:420px){
  .m-ticker__item:nth-child(n+2){display:none;}
  .m-heador,.m-header__inner{gap:10px;}
  .m-nav-toggle{padding:8px 10px;}
  .m-brand__season{display:none;}
}

/* ===== 显现与动效偏好 ===== */
.has-js [data-reveal]{opacity:0;transform:translateY(16px);transition:opacity 420ms ease,transform 420ms ease;}
.has-js [data-reveal].is-revealed{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-js [data-reveal]{opacity:1 !important;transform:none !important;}
  .m-progress{transition:none;}
  .m-btn:hover{transform:none;}
}