/* =========================================================
   球友会中心 · /assets/site.css
   共享外壳：重置 / 变量 / 中文排版 / 头部 / 页脚 / 基础组件
   ========================================================= */

/* ---------- 1. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}
main{display:block}

/* ---------- 2. 变量 ---------- */
:root{
  --ink:#0E223A;
  --ink-soft:#16324F;
  --paper:#F7F4EA;
  --grass:#2F7A3E;
  --grass-deep:#22612F;
  --dusk:#F28C28;
  --dusk-deep:#D9740F;
  --lemon:#F5E663;
  --teal:#0F4C5C;
  --wine:#7A1F3D;
  --indigo:#4B2E83;
  --white:#FFFFFF;
  --black:#1A1A1A;
  --line:rgba(14,34,58,.16);
  --line-strong:rgba(14,34,58,.34);
  --on-ink:rgba(247,244,234,.76);
  --on-ink-line:rgba(247,244,234,.16);
  --r-xs:8px;
  --r-sm:14px;
  --r-md:22px;
  --r-lg:30px;
  --r-xl:44px;
  --r-pill:999px;
  --shadow-card:0 1px 0 rgba(14,34,58,.06),0 18px 40px -26px rgba(14,34,58,.6);
  --shadow-pop:0 30px 60px -34px rgba(14,34,58,.75);
  --shell:1200px;
  --gutter:clamp(18px,4vw,48px);
  --ease:cubic-bezier(.2,.7,.3,1);
  --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:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}

/* ---------- 3. 中文排版与全局 ---------- */
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:clamp(16px,.35vw + 15px,17.5px);
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{line-height:1.2;font-weight:900;letter-spacing:.03em;text-wrap:balance}
h1{font-size:clamp(38px,6.2vw,84px)}
h2{font-size:clamp(26px,3.6vw,42px)}
h3{font-size:clamp(20px,2vw,26px);font-weight:800}
p{text-wrap:pretty}
::selection{background:var(--lemon);color:var(--ink)}
:focus-visible{outline:3px solid var(--lemon);outline-offset:3px;border-radius:6px}
#main-content:focus{outline:none}

.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.rule{height:0;border:0;border-top:1.5px solid var(--line);margin-block:clamp(24px,4vw,48px)}

/* ---------- 4. 跳转链 ---------- */
.skip-link{
  position:fixed;top:10px;left:12px;z-index:200;
  padding:11px 20px;border-radius:var(--r-pill);
  background:var(--lemon);color:var(--ink);
  font-weight:800;font-size:14px;letter-spacing:.08em;
  transform:translateY(-180%);
  transition:transform .18s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0)}

/* ---------- 5. 页头 ---------- */
.site-header{
  position:relative;
  z-index:50;
  background:var(--paper);
  color:var(--ink);
}

.scroll-meter{
  position:fixed;top:0;left:0;right:0;
  height:3px;z-index:120;
  background:transparent;
  pointer-events:none;
}
.scroll-meter__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:left center;
  background:linear-gradient(90deg,var(--grass) 0%,var(--dusk) 62%,var(--lemon) 100%);
}

.utility-bar{
  background:var(--ink);
  color:var(--on-ink);
  border-bottom:1px solid rgba(247,244,234,.08);
}
.utility-bar__inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:8px 24px;min-height:40px;padding-block:8px;
}
.utility-note{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.1em;
  color:var(--on-ink);
}
.utility-note__dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--grass);
  box-shadow:0 0 0 3px rgba(47,122,62,.28);
  flex:none;
}
.utility-note--sticker{
  background:var(--dusk);color:var(--ink);
  padding:3px 14px;border-radius:var(--r-pill);
  font-weight:800;font-size:12px;letter-spacing:.06em;
  transform:rotate(-1.2deg);
}

.masthead{
  position:relative;z-index:60;
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:clamp(12px,2vw,28px);
  padding-block:clamp(16px,2.4vw,28px);
  border-bottom:1.5px solid var(--line);
}
.masthead__edition{
  justify-self:start;
  font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:rgba(14,34,58,.5);
}
.masthead__brand{
  justify-self:center;
  display:inline-flex;align-items:center;gap:12px;
  padding:6px 12px;border-radius:var(--r-md);
  transition:background-color .18s var(--ease);
}
.masthead__brand:hover{background:rgba(47,122,62,.1)}
.masthead__mark{
  width:clamp(40px,4.4vw,50px);height:clamp(40px,4.4vw,50px);
  flex:none;display:grid;place-items:center;
  border-radius:50%;
  background:var(--grass);color:var(--paper);
  font-weight:900;font-size:clamp(18px,2vw,22px);line-height:1;
  box-shadow:inset 0 0 0 3px rgba(247,244,234,.24);
}
.masthead__text{display:flex;flex-direction:column;line-height:1.15;text-align:left}
.masthead__name{
  font-size:clamp(20px,2.5vw,29px);
  font-weight:900;letter-spacing:.16em;
}
.masthead__tagline{
  font-size:11px;font-weight:800;
  letter-spacing:.3em;
  color:var(--grass-deep);
}
.masthead__cta{
  justify-self:end;
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 18px;border-radius:var(--r-pill);
  background:var(--ink);color:var(--paper);
  font-size:13px;font-weight:800;letter-spacing:.1em;
  transition:background-color .18s var(--ease),color .18s var(--ease),transform .12s var(--ease);
}
.masthead__cta:hover{background:var(--grass)}
.masthead__cta:active{transform:translateY(1px)}

.nav-toggle{
  display:none;
  align-items:center;gap:9px;
  padding:9px 15px;
  border:1.5px solid var(--ink);border-radius:var(--r-pill);
  background:transparent;color:var(--ink);
  font-size:13px;font-weight:800;letter-spacing:.12em;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.nav-toggle:hover{background:var(--ink);color:var(--paper)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:18px;flex:none}
.nav-toggle__bars span{
  height:2px;width:100%;border-radius:2px;background:currentColor;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"]{background:var(--grass);border-color:var(--grass);color:var(--paper)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-toggle__label{white-space:nowrap}

.nav-scrim{
  position:fixed;inset:0;z-index:45;
  background:rgba(14,34,58,.55);
  border:0;border-radius:0;
  width:100%;height:100%;
}

.site-nav{
  background:var(--ink);
  color:var(--paper);
}
.site-nav__inner{display:flex;justify-content:center}
.site-nav__list{
  display:flex;flex-wrap:wrap;justify-content:center;
  gap:clamp(0px,.8vw,8px);
  padding-block:3px;
}
.site-nav__item{position:relative}
.site-nav__link{
  display:inline-flex;align-items:baseline;gap:7px;
  padding:12px clamp(10px,1.4vw,18px);
  font-size:15px;font-weight:700;letter-spacing:.08em;
  color:rgba(247,244,234,.78);
  background-image:linear-gradient(var(--lemon),var(--lemon));
  background-repeat:no-repeat;
  background-position:50% calc(100% - 7px);
  background-size:0 2px;
  transition:color .18s var(--ease),background-size .22s var(--ease);
}
.site-nav__link:hover{color:var(--paper);background-size:calc(100% - 28px) 2px}
.site-nav__link[aria-current="page"]{
  color:var(--lemon);
  background-size:calc(100% - 28px) 2px;
}
.site-nav__num{
  font-size:10.5px;letter-spacing:.06em;
  color:rgba(245,230,99,.55);
  transition:color .18s var(--ease);
}
.site-nav__link:hover .site-nav__num,
.site-nav__link[aria-current="page"] .site-nav__num{color:var(--lemon)}

/* ---------- 6. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,110px);
  background:var(--ink);
  color:var(--paper);
  border-radius:clamp(28px,5vw,56px) clamp(28px,5vw,56px) 0 0;
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;right:-12%;bottom:-46%;
  width:min(620px,90%);aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(47,122,62,.5),rgba(47,122,62,0) 68%);
  pointer-events:none;
}
.site-footer::after{
  content:"";position:absolute;left:-10%;top:-30%;
  width:min(420px,70%);aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(242,140,40,.28),rgba(242,140,40,0) 70%);
  pointer-events:none;
}
.footer-top{
  position:relative;z-index:1;
  display:grid;gap:clamp(30px,4.4vw,56px);
  grid-template-columns:1fr;
  padding-block:clamp(40px,6vw,80px);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.footer-brand__mark{
  display:inline-block;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(245,230,99,.4);
  color:var(--lemon);
  font-size:11.5px;letter-spacing:.16em;
}
.footer-brand__name{
  font-size:clamp(24px,2.8vw,32px);font-weight:900;letter-spacing:.16em;
}
.footer-brand__summary{
  max-width:34em;
  color:var(--on-ink);
  font-size:15px;line-height:1.8;
}
.footer-sticker{
  display:inline-block;
  padding:7px 16px;border-radius:var(--r-sm);
  background:var(--dusk);color:var(--ink);
  font-size:12px;font-weight:800;letter-spacing:.08em;
  transform:rotate(-2deg);
  transition:transform .2s var(--ease);
}
.footer-sticker:hover{transform:rotate(1deg)}
.footer-brand .btn{margin-top:4px}

.footer-index__title,
.footer-contact__title{
  font-size:12px;font-weight:800;letter-spacing:.24em;
  color:rgba(247,244,234,.55);
  margin-bottom:14px;
}
.footer-index__list{display:grid;gap:0;border-top:1px solid var(--on-ink-line)}
.footer-index__item{border-bottom:1px solid var(--on-ink-line)}
.footer-index__link{
  display:flex;align-items:baseline;gap:12px;
  padding:11px 4px;
  font-size:15px;font-weight:700;letter-spacing:.06em;
  color:rgba(247,244,234,.82);
  transition:color .16s var(--ease),padding-left .18s var(--ease),background-color .16s var(--ease);
}
.footer-index__link:hover{
  color:var(--lemon);
  padding-left:12px;
  background:rgba(247,244,234,.05);
}
.footer-index__num{
  font-size:11.5px;color:rgba(245,230,99,.6);min-width:2.2em;
}
.footer-index__link:hover .footer-index__num{color:var(--lemon)}

.footer-contact__list{border-top:1px solid var(--on-ink-line)}
.footer-contact__line{
  display:flex;flex-wrap:wrap;gap:2px 12px;
  padding-block:10px;
  border-bottom:1px solid var(--on-ink-line);
  font-size:14px;line-height:1.7;
}
.footer-contact__label{
  flex:none;min-width:5.2em;
  font-size:11.5px;font-weight:800;letter-spacing:.16em;
  color:rgba(247,244,234,.5);
}
.footer-contact__value{color:var(--paper);overflow-wrap:anywhere}
.footer-contact__note{
  margin-top:12px;
  font-size:13px;line-height:1.75;
  color:rgba(247,244,234,.62);
  border-left:2px solid var(--dusk);
  padding-left:12px;
}

.footer-bottom{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px 28px;
  padding-block:22px clamp(26px,3vw,38px);
  border-top:1px solid var(--on-ink-line);
  font-size:13px;color:rgba(247,244,234,.62);
}
.footer-legal{display:flex;flex-wrap:wrap;align-items:center;gap:8px 22px}
.footer-legal__link{
  color:rgba(247,244,234,.76);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-legal__link:hover{color:var(--lemon);border-bottom-color:var(--lemon)}
.footer-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px}
.footer-icp{font-size:12.5px;letter-spacing:.06em;color:rgba(247,244,234,.56)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  border:1.5px solid rgba(247,244,234,.32);
  color:var(--paper);
  font-size:12.5px;font-weight:800;letter-spacing:.12em;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .12s var(--ease);
}
.to-top:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.to-top:active{transform:translateY(1px)}

/* ---------- 7. 通用按钮 / 标签 / 贴纸 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border-radius:var(--r-pill);
  border:1.5px solid transparent;
  font-size:15px;font-weight:800;letter-spacing:.06em;line-height:1.3;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .12s var(--ease),box-shadow .18s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--grass);color:var(--paper)}
.btn--primary:hover{background:var(--grass-deep);box-shadow:0 14px 26px -18px rgba(47,122,62,.95)}
.btn--dusk{background:var(--dusk);color:var(--ink)}
.btn--dusk:hover{background:var(--dusk-deep)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn--ghost:hover{border-color:var(--grass);color:var(--grass-deep);background:rgba(47,122,62,.06)}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:12px;font-weight:800;letter-spacing:.1em;line-height:1.6;
  white-space:nowrap;
}
.pill--announce{background:var(--dusk);color:var(--ink)}
.pill--fee{background:var(--lemon);color:var(--ink)}
.pill--help{background:rgba(47,122,62,.12);color:var(--grass-deep);border-color:rgba(47,122,62,.32)}
.pill--topic{background:var(--indigo);color:var(--paper)}
.pill--note{background:var(--wine);color:var(--paper)}

.announce-sticker{
  display:inline-block;
  padding:10px 18px;border-radius:var(--r-sm);
  background:var(--dusk);color:var(--ink);
  font-weight:800;font-size:14px;letter-spacing:.06em;
  transform:rotate(-2deg);
  box-shadow:0 10px 22px -16px rgba(242,140,40,.95);
  transition:transform .2s var(--ease);
}
.announce-sticker:hover{transform:rotate(1deg)}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}

/* ---------- 8. 目录与编号 ---------- */
.section-number{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(48px,9vw,96px);
  font-weight:700;line-height:.86;letter-spacing:-.03em;
  color:var(--grass);
}
.section-number--dusk{color:var(--dusk)}
.section-number--lemon{color:var(--lemon)}
.section-number--ink{color:var(--ink)}

.rail-note{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-size:13px;font-weight:800;letter-spacing:.42em;
  color:var(--grass-deep);
  line-height:1.2;
  padding-block:6px;
  border-left:2px solid rgba(47,122,62,.35);
  padding-left:8px;
}

.index-list{display:grid;gap:0;border-top:1.5px solid var(--line)}
.index-link{
  display:flex;align-items:baseline;gap:14px;
  padding:14px 8px;
  border-bottom:1.5px solid var(--line);
  font-size:15.5px;font-weight:700;letter-spacing:.05em;
  color:rgba(14,34,58,.74);
  transition:color .16s var(--ease),padding-left .18s var(--ease),background-color .16s var(--ease),border-color .18s var(--ease);
}
.index-link:hover{color:var(--grass-deep);padding-left:16px;background:rgba(47,122,62,.06);border-bottom-color:rgba(47,122,62,.4)}
.index-link.is-current{
  color:var(--ink);
  background:rgba(245,230,99,.5);
  border-bottom-color:var(--dusk);
}
.index-link__num{
  font-family:var(--font-mono);font-size:12px;
  color:var(--grass-deep);min-width:2.4em;
}
.index-link.is-current .index-link__num{color:var(--wine)}

/* ---------- 9. 卡片 / 数据 / 图片容器 ---------- */
.card{
  position:relative;
  display:flex;flex-direction:column;gap:10px;
  padding:clamp(18px,2.4vw,30px);
  background:var(--white);
  border:1.5px solid var(--line);
  border-radius:var(--r-lg);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.card:hover,.card:focus-within{border-color:var(--grass);box-shadow:var(--shadow-card)}
.card__kicker{
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--grass-deep);
}
.card__title{font-size:clamp(19px,1.9vw,24px);font-weight:900;letter-spacing:.03em;line-height:1.32}
.card__body{font-size:15.5px;line-height:1.72;color:rgba(26,26,26,.74)}
.card__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}
.card--index{padding-left:clamp(58px,7vw,86px)}
.card--index::before{
  content:attr(data-index);
  position:absolute;left:clamp(14px,2vw,24px);top:clamp(12px,2vw,20px);
  font-family:var(--font-mono);
  font-size:clamp(26px,3vw,38px);font-weight:700;line-height:1;
  color:rgba(47,122,62,.26);
}
.card--ink{background:var(--ink);color:var(--paper);border-color:transparent}
.card--ink .card__body{color:rgba(247,244,234,.76)}
.card--ink .card__kicker{color:var(--lemon)}
.card--ink:hover,.card--ink:focus-within{border-color:var(--dusk)}

.data-figure{display:inline-flex;flex-direction:column;gap:5px}
.data-figure__value{
  font-family:var(--font-mono);
  font-size:clamp(30px,4.2vw,54px);
  font-weight:700;line-height:1;letter-spacing:-.01em;
  color:var(--ink);
}
.data-figure__label{
  font-size:12px;font-weight:800;letter-spacing:.16em;
  color:rgba(14,34,58,.58);
}
.data-figure--hl .data-figure__value{
  display:inline-block;width:fit-content;
  padding:2px 10px;border-radius:var(--r-xs);
  background:var(--lemon);
}
.data-figure--onink .data-figure__value{color:var(--paper)}
.data-figure--onink .data-figure__label{color:rgba(247,244,234,.62)}

.figure-frame{
  position:relative;margin:0;
  border:1.5px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  background:
    repeating-linear-gradient(135deg,rgba(47,122,62,.14) 0 16px,rgba(242,140,40,.14) 16px 32px);
}
.figure-frame__media{
  display:block;width:100%;height:100%;
  aspect-ratio:4/3;object-fit:cover;
  transition:transform .4s var(--ease);
}
.figure-frame:hover .figure-frame__media{transform:scale(1.02)}
.figure-frame__caption{
  position:absolute;left:14px;bottom:14px;
  max-width:calc(100% - 28px);
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(14,34,58,.84);
  color:var(--paper);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;line-height:1.5;
}
.figure-frame__badge{position:absolute;top:14px;left:14px}
.figure-frame--wide .figure-frame__media{aspect-ratio:16/9}
.figure-frame--portrait .figure-frame__media{aspect-ratio:3/4}
.figure-frame--square .figure-frame__media{aspect-ratio:1/1}

/* ---------- 10. 面包屑 / 正文 / 网格 / 段落 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-block:18px;
  font-size:13px;letter-spacing:.04em;
  color:rgba(14,34,58,.55);
}
.breadcrumb__link{
  color:rgba(14,34,58,.72);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.breadcrumb__link:hover{color:var(--grass-deep);border-bottom-color:var(--grass)}
.breadcrumb__sep{color:rgba(14,34,58,.32)}
.breadcrumb__current{color:var(--ink);font-weight:800}

.prose{
  max-width:64ch;
  font-size:clamp(16px,.4vw + 15px,18px);
  line-height:1.85;
  color:rgba(26,26,26,.86);
}
.prose > * + *{margin-top:1.05em}
.prose h2{font-size:clamp(24px,2.6vw,32px);margin-top:1.8em;letter-spacing:.02em}
.prose h3{font-size:clamp(19px,1.9vw,23px);margin-top:1.5em}
.prose ul,.prose ol{padding-left:1.3em;list-style:disc}
.prose ol{list-style:decimal}
.prose li + li{margin-top:.35em}
.prose a{
  color:var(--grass-deep);
  border-bottom:1.5px solid rgba(47,122,62,.4);
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.prose a:hover{border-bottom-color:var(--grass);color:var(--ink)}
.prose strong{font-weight:800;color:var(--ink)}
.prose .mono{background:rgba(245,230,99,.55);padding:1px 6px;border-radius:5px;font-size:.94em}

.grid{display:grid;gap:clamp(16px,2.4vw,32px);grid-template-columns:minmax(0,1fr)}
.section{
  padding-block:clamp(46px,7vw,96px);
}
.section--ink{background:var(--ink);color:var(--paper)}
.section--teal{background:var(--teal);color:var(--paper)}
.section--wine{background:var(--wine);color:var(--paper)}
.section--indigo{background:var(--indigo);color:var(--paper)}
.section--ink .section__lede,
.section--teal .section__lede,
.section--wine .section__lede,
.section--indigo .section__lede{color:rgba(247,244,234,.74)}
.section__head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px 28px;
  margin-bottom:clamp(22px,3.6vw,44px);
}
.section__title{font-size:clamp(24px,3.2vw,38px);font-weight:900;letter-spacing:.03em}
.section__lede{
  max-width:52ch;
  font-size:16px;line-height:1.8;
  color:rgba(14,34,58,.66);
}

/* ---------- 11. 响应式 ---------- */
@media (min-width:760px){
  .grid--stagger{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--stagger > :nth-child(even){margin-top:clamp(20px,4vw,56px)}
  .grid--split{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
}
@media (min-width:820px){
  .footer-top{grid-template-columns:minmax(0,1.15fr) minmax(0,.9fr) minmax(0,1fr)}
}
@media (max-width:880px){
  .masthead{
    grid-template-columns:minmax(0,1fr) auto;
    grid-template-areas:
      "brand toggle"
      "cta cta";
    justify-items:start;
    row-gap:14px;
    column-gap:12px;
  }
  .masthead__edition{display:none}
  .masthead__brand{grid-area:brand;justify-self:start;padding-left:0}
  .masthead__cta{grid-area:cta;justify-self:stretch;width:100%}
  .nav-toggle{grid-area:toggle;display:inline-flex;justify-self:end}
  .masthead__text{text-align:left}

  .site-nav{
    position:absolute;
    top:100%;left:0;right:0;
    z-index:55;
    display:none;
    border-top:1px solid rgba(247,244,234,.14);
    box-shadow:var(--shadow-pop);
    max-height:calc(100vh - 90px);
    overflow-y:auto;
  }
  .site-nav[data-open="true"]{display:block}
  .site-nav__inner{padding-inline:0;justify-content:stretch}
  .site-nav__list{flex-direction:column;flex-wrap:nowrap;align-items:stretch;gap:0;padding-block:6px 18px;width:100%}
  .site-nav__item{width:100%}
  .site-nav__link{
    width:100%;
    justify-content:flex-start;
    gap:14px;
    padding:15px var(--gutter);
    font-size:16px;
    border-bottom:1px solid rgba(247,244,234,.1);
    background-image:none;
  }
  .site-nav__link:hover{background:rgba(247,244,234,.07);color:var(--lemon)}
  .site-nav__link[aria-current="page"]{background:rgba(245,230,99,.14);color:var(--lemon)}
  .site-nav__num{font-size:12px;min-width:2.2em}
}
@media (min-width:881px){
  .nav-scrim{display:none!important}
}
@media (max-width:640px){
  .utility-bar__inner{flex-direction:column;align-items:flex-start;gap:6px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .masthead__tagline{letter-spacing:.22em}
  .scroll-meter{height:2px}
}
@media (max-width:440px){
  .masthead__tagline{display:none}
  .masthead__cta{font-size:12px;padding:8px 14px}
  .card--index{padding-left:clamp(18px,2.4vw,30px);padding-top:52px}
  .card--index::before{left:clamp(18px,2.4vw,30px);top:14px;font-size:26px}
}

/* ---------- 12. 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .figure-frame:hover .figure-frame__media{transform:none}
}