/* ===== 1. Reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
img,svg,canvas{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
h1,h2,h3,h4,h5,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}

/* ===== 2. 变量 ===== */
:root{
  --ink-green:#103A32;
  --ink-dark:#151B18;
  --wood:#A96F3F;
  --paper:#F2E9D8;
  --paper-bright:#FBF7EF;
  --cinnabar:#B23A2E;
  --copper:#B8893A;
  --mist:#6D7F76;
  --green-light:#24564A;
  --wood-grey:#D8C6AE;
  --text:#1B241F;
  --text-soft:#4E5B55;
  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --radius:14px;
  --radius-lg:22px;
  --dur:220ms;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-heading:"Noto Serif SC","Source Han Serif SC","Songti SC",STSong,"SimSun",serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","SFMono-Regular",ui-monospace,"DejaVu Sans Mono",Menlo,monospace;
  --shadow-lift:0 18px 34px -24px rgba(16,58,50,.85);
  --shadow-paper:0 1px 0 rgba(21,27,24,.06),0 14px 30px -22px rgba(21,27,24,.5);
}

/* ===== 3. 中文排版基线 ===== */
body{
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--paper);
  background-image:
    linear-gradient(to right,rgba(21,27,24,.042) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(21,27,24,.042) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-heading);font-weight:800;line-height:1.24;letter-spacing:-.008em;color:var(--ink-green)}
h1{font-size:clamp(2.1rem,4.6vw,3.6rem);font-weight:900}
h2{font-size:clamp(1.6rem,3vw,2.2rem)}
h3{font-size:clamp(1.15rem,2vw,1.4rem)}
p{max-width:70ch}
strong{font-weight:700;color:var(--ink-green)}
::selection{background:var(--copper);color:var(--ink-dark)}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:3px;border-radius:4px}

/* ===== 4. 跳转链接 ===== */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  padding:10px 20px;border-radius:999px;
  background:var(--paper-bright);color:var(--ink-green);
  font-size:.86rem;font-weight:700;letter-spacing:.04em;
  border:1px solid var(--copper);box-shadow:var(--shadow-paper);
  transform:translateY(-220%);
  transition:transform var(--dur) var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ===== 5. 悬浮胶囊头部 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:12px clamp(10px,3vw,32px) 14px;
  background:linear-gradient(180deg,rgba(242,233,216,.9) 0%,rgba(242,233,216,0) 100%);
}
.header-inner{
  position:relative;
  width:min(100%,var(--shell));margin-inline:auto;
  display:flex;align-items:center;gap:clamp(10px,2vw,24px);
  padding:9px 10px 9px 20px;
  background:var(--ink-green);color:var(--paper);
  border:1px solid rgba(184,137,58,.45);
  border-radius:999px;
  box-shadow:0 18px 34px -26px rgba(16,58,50,.95),inset 0 1px 0 rgba(251,247,239,.08);
  transition:padding var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-header[data-scrolled="true"] .header-inner{
  padding:6px 10px 6px 18px;
  background:rgba(16,58,50,.96);
  box-shadow:0 22px 40px -28px rgba(16,58,50,1),inset 0 1px 0 rgba(251,247,239,.1);
}
.brand{display:flex;flex-direction:column;gap:1px;flex-shrink:0;line-height:1.15}
.brand__mark{
  font-family:var(--font-heading);font-weight:900;
  font-size:1.14rem;letter-spacing:.06em;color:var(--paper-bright);
}
.brand__line{
  display:flex;align-items:center;gap:7px;
  font-size:.66rem;letter-spacing:.22em;color:var(--copper);
}
.brand__line::before{content:"";width:14px;height:1px;background:var(--copper)}
.header-drawer{display:flex;flex:1;align-items:center;justify-content:space-between;gap:clamp(8px,2vw,18px);min-width:0}
.primary-nav{min-width:0}
.primary-nav__list{display:flex;align-items:center;gap:2px;flex-wrap:wrap;counter-reset:navidx}
.primary-nav__link{
  display:inline-flex;align-items:center;
  padding:8px 13px;border-radius:999px;
  font-size:.9rem;font-weight:500;letter-spacing:.01em;
  color:rgba(242,233,216,.8);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.primary-nav__link:hover{background:rgba(251,247,239,.1);color:var(--paper-bright)}
.primary-nav__link[aria-current="page"]{
  background:var(--green-light);color:var(--paper-bright);font-weight:700;
  box-shadow:inset 0 0 0 1px rgba(184,137,58,.55);
}
@media (min-width:1120px){
  .primary-nav__link::before{
    counter-increment:navidx;
    content:counter(navidx,decimal-leading-zero);
    margin-right:7px;
    font-family:var(--font-mono);font-size:.6rem;letter-spacing:.06em;
    color:var(--copper);opacity:.85;
  }
  .primary-nav__link[aria-current="page"]::before{color:var(--wood-grey);opacity:1}
}
.header-tools{display:flex;align-items:center;gap:8px;flex-shrink:0}
.tool-link{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 16px;border-radius:999px;
  font-size:.82rem;font-weight:600;letter-spacing:.04em;
  color:rgba(242,233,216,.85);
  border:1px solid rgba(216,198,174,.35);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.tool-link:hover{background:rgba(251,247,239,.12);color:var(--paper-bright);border-color:var(--copper)}
.tool-link--accent{
  background:var(--paper-bright);color:var(--ink-green);
  border-color:var(--paper-bright);font-weight:700;
}
.tool-link--accent:hover{background:var(--wood-grey);border-color:var(--wood-grey);color:var(--ink-dark)}
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 15px;border-radius:999px;
  background:rgba(251,247,239,.1);
  border:1px solid rgba(184,137,58,.55);
  color:var(--paper-bright);
  font-size:.8rem;font-weight:700;letter-spacing:.14em;
  cursor:pointer;
  transition:background var(--dur) var(--ease);
}
.nav-toggle:hover{background:rgba(251,247,239,.18)}
.nav-toggle__icon{position:relative;display:block;width:16px;height:10px}
.nav-toggle__icon::before,.nav-toggle__icon::after{
  content:"";position:absolute;left:0;width:100%;height:2px;border-radius:2px;
  background:currentColor;
  transition:transform var(--dur) var(--ease),top var(--dur) var(--ease),bottom var(--dur) var(--ease);
}
.nav-toggle__icon::before{top:0}
.nav-toggle__icon::after{bottom:0}
.nav-toggle__text{line-height:1}
.scroll-meter{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:rgba(184,137,58,.16);overflow:hidden;pointer-events:none;
}
.scroll-meter__fill{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--copper),var(--cinnabar));
  transition:transform 120ms linear;
}

/* ===== 6. 页脚 ===== */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,96px);
  background:var(--ink-dark);
  color:rgba(242,233,216,.78);
  border-top:3px solid var(--wood);
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(216,198,174,.07) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(216,198,174,.07) 1px,transparent 1px);
  background-size:48px 48px;
}
.footer-inner{
  position:relative;z-index:1;
  width:min(100% - var(--gutter)*2,var(--shell));margin-inline:auto;
  padding:clamp(36px,5vw,64px) 0 22px;
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(240px,1.4fr) repeat(2,minmax(130px,.7fr)) minmax(250px,1.2fr);
  gap:clamp(22px,4vw,48px);
}
.footer-brand__mark{
  font-family:var(--font-heading);font-weight:900;
  font-size:1.6rem;letter-spacing:.06em;color:var(--paper-bright);line-height:1.2;
}
.footer-brand__line{
  margin-top:6px;font-family:var(--font-mono);
  font-size:.7rem;letter-spacing:.24em;color:var(--copper);
}
.footer-brand__text{
  margin-top:14px;max-width:32ch;
  font-size:.92rem;line-height:1.85;color:rgba(242,233,216,.62);
}
.footer-col__title{
  font-family:var(--font-body);font-size:.74rem;font-weight:700;
  letter-spacing:.2em;color:var(--wood-grey);
  padding-bottom:10px;margin-bottom:14px;
  border-bottom:1px solid rgba(184,137,58,.3);
}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-link{
  display:inline-block;width:fit-content;
  font-size:.92rem;color:rgba(242,233,216,.75);
  border-bottom:1px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.footer-link:hover{color:var(--paper-bright);border-bottom-color:var(--copper)}
.footer-contact__item{
  display:flex;flex-wrap:wrap;gap:8px;
  font-size:.88rem;line-height:1.7;color:rgba(242,233,216,.8);
  margin-bottom:8px;word-break:break-word;
}
.footer-contact__key{
  flex-shrink:0;padding:1px 7px;border-radius:3px;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.1em;
  color:var(--wood-grey);background:rgba(184,137,58,.16);
  align-self:flex-start;margin-top:3px;
}
.footer-contact__note{
  margin-top:12px;max-width:34ch;
  font-size:.76rem;line-height:1.75;color:rgba(242,233,216,.48);
}
.footer-bottom{
  margin-top:clamp(28px,4vw,44px);padding-top:18px;
  border-top:1px solid rgba(184,137,58,.24);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 26px;font-size:.8rem;
}
.footer-legal{display:flex;flex-wrap:wrap;gap:8px 20px}
.footer-legal__link{
  color:rgba(242,233,216,.72);
  border-bottom:1px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.footer-legal__link:hover{color:var(--paper-bright);border-bottom-color:var(--copper)}
.footer-icp{font-family:var(--font-mono);font-size:.76rem;letter-spacing:.04em;color:rgba(242,233,216,.55)}
.footer-copy{font-family:var(--font-mono);font-size:.76rem;color:rgba(242,233,216,.55)}

/* ===== 7. 通用布局组件 ===== */
.container{width:min(100% - var(--gutter)*2,var(--shell));margin-inline:auto}
.section{padding-block:clamp(34px,5.5vw,70px)}
.section__head{display:grid;gap:10px;max-width:64ch;margin-bottom:clamp(20px,3vw,34px)}
.section__title{font-size:clamp(1.6rem,3vw,2.2rem);color:var(--ink-green)}
.section__lead{font-size:1rem;color:var(--text-soft);line-height:1.85}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.72rem;font-weight:500;
  letter-spacing:.22em;color:var(--wood);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--copper)}
.grid-auto{display:grid;gap:clamp(14px,2vw,22px);grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.blueprint-grid{
  position:relative;
  background-image:
    linear-gradient(to right,rgba(21,27,24,.06) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(21,27,24,.06) 1px,transparent 1px);
  background-size:48px 48px;
}

/* ===== 8. 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;border:1px solid transparent;
  font-family:var(--font-body);font-size:.9rem;font-weight:700;letter-spacing:.03em;
  cursor:pointer;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:var(--ink-green);color:var(--paper-bright);box-shadow:var(--shadow-lift)}
.btn--primary:hover{background:var(--green-light)}
.btn--ghost{background:transparent;color:var(--ink-green);border-color:var(--wood)}
.btn--ghost:hover{background:rgba(169,111,63,.12);border-color:var(--ink-green)}
.btn--stamp{background:var(--cinnabar);color:var(--paper-bright)}
.btn--stamp:hover{background:#9B2F25}

/* ===== 9. 面包屑 ===== */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding-block:clamp(14px,2vw,22px);
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.08em;color:var(--mist);
}
.breadcrumb__link{color:var(--text-soft);border-bottom:1px solid transparent;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.breadcrumb__link:hover{color:var(--ink-green);border-bottom-color:var(--copper)}
.breadcrumb__sep{color:var(--wood-grey)}
.breadcrumb__current{color:var(--ink-green);font-weight:700}

/* ===== 10. 标签与筛选 ===== */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:4px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;
  background:var(--paper-bright);color:var(--text-soft);
  border:1px solid var(--wood-grey);
}
.tag--gold{border-color:var(--copper);color:#7A5A22;background:rgba(184,137,58,.14)}
.tag--red{border-color:var(--cinnabar);color:var(--cinnabar);background:rgba(178,58,46,.08)}
.tag--green{border-color:var(--green-light);color:var(--ink-green);background:rgba(36,86,74,.1)}
.tag--mist{border-color:var(--mist);color:var(--mist);background:transparent}
.pill-group{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  appearance:none;cursor:pointer;
  padding:8px 16px;border-radius:999px;
  border:1px solid var(--wood-grey);background:var(--paper-bright);
  color:var(--text-soft);font-size:.85rem;font-weight:600;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.pill:hover{border-color:var(--wood);color:var(--ink-green)}
.pill[aria-pressed="true"]{background:var(--ink-green);color:var(--paper-bright);border-color:var(--ink-green)}

/* ===== 11. 门牌式规则卡 ===== */
.rule-card{
  position:relative;
  padding:22px 22px 24px 26px;
  background:var(--paper-bright);
  border:1px solid var(--wood-grey);
  border-radius:var(--radius);
  box-shadow:var(--shadow-paper);
}
.rule-card::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--copper),var(--wood));
}
.rule-card__num{
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.16em;color:var(--copper);
}
.rule-card__title{margin-top:6px;font-size:1.12rem;color:var(--ink-green)}
.rule-card__body{margin-top:8px;font-size:.94rem;line-height:1.8;color:var(--text-soft)}

/* ===== 12. 左侧房间骨架 ===== */
.room-spine{
  padding:20px 16px;
  background:var(--ink-green);color:var(--paper);
  border:1px solid rgba(184,137,58,.35);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lift);
}
.room-spine__title{
  margin-bottom:14px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;color:var(--copper);
}
.room-spine__list{display:flex;flex-direction:column;gap:4px}
.room-spine__item{
  display:flex;align-items:baseline;gap:10px;
  padding:10px 12px;border-radius:10px;
  border-left:2px solid transparent;
  color:rgba(242,233,216,.8);font-size:.92rem;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.room-spine__item:hover{background:rgba(251,247,239,.08);color:var(--paper-bright)}
.room-spine__item[aria-current="page"]{
  background:var(--green-light);color:var(--paper-bright);
  border-left-color:var(--copper);
  box-shadow:inset 0 0 0 1px rgba(184,137,58,.45);
}
.room-spine__index{font-family:var(--font-mono);font-size:.72rem;color:var(--copper)}
.room-spine__label{flex:1}
.room-spine__meta{font-family:var(--font-mono);font-size:.7rem;color:var(--mist)}
.room-spine__item--spot .room-spine__index{color:var(--cinnabar)}
.room-spine__item--spot .room-spine__label::after{
  content:"赛季";margin-left:8px;padding:1px 6px;border-radius:3px;
  font-family:var(--font-mono);font-size:.62rem;letter-spacing:.1em;
  background:var(--cinnabar);color:var(--paper-bright);vertical-align:2px;
}

/* ===== 13. 时长标尺 ===== */
.meter{
  display:grid;gap:10px;
  padding:16px 18px;
  border:1px dashed var(--wood);border-radius:var(--radius);
  background:rgba(251,247,239,.72);
}
.meter__head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.meter__label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;color:var(--wood)}
.meter__value{font-family:var(--font-mono);font-size:.82rem;color:var(--ink-green)}
.meter__ticks{
  display:flex;align-items:flex-end;justify-content:space-between;gap:2px;
  height:26px;border-bottom:1px solid var(--wood-grey);
}
.meter__tick{
  flex:1;height:8px;border-radius:2px 2px 0 0;
  background:linear-gradient(180deg,var(--copper),rgba(184,137,58,.22));
}
.meter__tick:nth-child(3n){height:15px}
.meter__tick:nth-child(5n){height:22px;background:linear-gradient(180deg,var(--cinnabar),rgba(178,58,46,.22))}
.meter__scale{display:flex;justify-content:space-between;font-family:var(--font-mono);font-size:.68rem;color:var(--mist)}

/* ===== 14. 时间线 ===== */
.timeline{
  position:relative;
  display:flex;flex-direction:column;gap:24px;
  padding-left:26px;border-left:1px solid var(--wood-grey);
}
.timeline__item{position:relative;padding-bottom:4px}
.timeline__node{
  position:absolute;left:-33px;top:7px;
  width:13px;height:13px;border-radius:50%;
  background:var(--paper-bright);border:2px solid var(--copper);
  box-shadow:0 0 0 4px var(--paper);
}
.timeline__meta{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;color:var(--wood)}
.timeline__title{margin-top:4px;font-size:1.1rem;color:var(--ink-green)}
.timeline__text{margin-top:6px;font-size:.94rem;line-height:1.8;color:var(--text-soft)}

/* ===== 15. 面板与状态控制台 ===== */
.panel{
  background:var(--paper-bright);
  border:1px solid var(--wood-grey);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.panel__head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 18px;
  background:var(--wood-grey);
  border-bottom:1px solid var(--wood-grey);
}
.panel__title{font-size:.94rem;font-weight:700;color:var(--ink-green)}
.panel__body{padding:18px;font-size:.95rem;line-height:1.8;color:var(--text-soft)}
.console{
  display:grid;gap:8px;
  padding:16px 18px;
  background:var(--ink-dark);color:rgba(242,233,216,.86);
  border:1px solid rgba(184,137,58,.3);border-radius:var(--radius);
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.02em;
}
.console__row{
  display:flex;justify-content:space-between;gap:14px;
  padding-bottom:6px;border-bottom:1px dashed rgba(242,233,216,.14);
}
.console__row:last-child{padding-bottom:0;border-bottom:0}
.console__key{color:var(--mist);letter-spacing:.1em}
.console__value{color:var(--paper-bright)}

/* ===== 16. 图片容器（页面阶段放占位/实拍） ===== */
.media-frame{
  position:relative;overflow:hidden;
  aspect-ratio:16/10;
  border:1px solid rgba(184,137,58,.4);
  border-radius:var(--radius);
  background:linear-gradient(150deg,var(--green-light),var(--ink-dark));
  box-shadow:var(--shadow-paper);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--table{
  aspect-ratio:4/3;
  background-image:
    repeating-linear-gradient(96deg,rgba(169,111,63,.28) 0 2px,transparent 2px 10px),
    linear-gradient(150deg,var(--green-light),var(--ink-dark));
}
.media-frame__caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px;
  background:linear-gradient(0deg,rgba(21,27,24,.88),rgba(21,27,24,0));
  color:rgba(242,233,216,.9);font-size:.8rem;letter-spacing:.04em;
}
.media-frame__stamp{
  position:absolute;top:14px;left:14px;
  padding:4px 10px;border-radius:4px;
  background:var(--cinnabar);color:var(--paper-bright);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;
}

/* ===== 17. 纸张叠层与正文 ===== */
.paper-stack{
  position:relative;
  padding:clamp(20px,3vw,32px);
  background:var(--paper-bright);
  border:1px solid var(--wood-grey);
  border-radius:var(--radius);
  box-shadow:
    6px 6px 0 -1px var(--paper),
    6px 6px 0 0 var(--wood-grey),
    12px 12px 0 -1px var(--paper),
    12px 12px 0 0 rgba(216,198,174,.55),
    var(--shadow-paper);
}
.prose{max-width:68ch;font-size:1rem;line-height:1.9;color:var(--text)}
.prose > * + *{margin-top:1em}
.prose h2{margin-top:1.9em;font-size:1.4rem;color:var(--ink-green)}
.prose h3{margin-top:1.6em;font-size:1.12rem;color:var(--ink-green)}
.prose ul,.prose ol{list-style:revert;padding-left:1.25em}
.prose li{margin-top:.4em}
.prose a{color:var(--cinnabar);border-bottom:1px solid currentColor}

/* ===== 18. 显现动效 ===== */
.reveal{transition:opacity 260ms var(--ease),transform 260ms var(--ease)}
html[data-reveal="on"] .reveal{opacity:0;transform:translateY(16px)}
html[data-reveal="on"] .reveal.is-in{opacity:1;transform:none}

/* ===== 19. 响应式 ===== */
@media (max-width:1080px){
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-contact{grid-column:1 / -1}
}
@media (max-width:900px){
  .header-inner{padding:8px 10px 8px 16px;gap:10px}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .header-drawer{
    position:absolute;top:calc(100% + 10px);left:0;right:0;z-index:5;
    display:flex;flex-direction:column;align-items:stretch;gap:12px;
    padding:12px;
    background:var(--ink-green);
    border:1px solid rgba(184,137,58,.5);
    border-radius:20px;
    box-shadow:0 26px 44px -30px rgba(16,58,50,1);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease);
  }
  .site-header[data-open="true"] .header-drawer{opacity:1;visibility:visible;transform:none}
  .primary-nav__list{flex-direction:column;align-items:stretch;gap:2px}
  .primary-nav__link{padding:12px 14px;border-radius:12px;font-size:.95rem}
  .header-tools{
    flex-direction:column;align-items:stretch;gap:8px;
    padding-top:12px;border-top:1px solid rgba(184,137,58,.3);
  }
  .tool-link{padding:11px 14px}
}
@media (max-width:640px){
  body{font-size:16px;background-size:40px 40px}
  .site-header{padding:8px 10px 10px}
  .brand__mark{font-size:1.04rem}
  .brand__line{font-size:.6rem;letter-spacing:.16em}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .paper-stack{box-shadow:4px 4px 0 -1px var(--paper),4px 4px 0 0 var(--wood-grey),var(--shadow-paper)}
  .meter__ticks{height:22px}
}

/* ===== 20. 减少动效 ===== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1 !important;transform:none !important}
  .btn:hover{transform:none}
}