/* ============================================================
   33体育入口 · 共享外壳样式 /assets/site.css
   夜场主场：深墨绿草皮、熔岩橙红高热、冷光青读数、比分牌白文字
   ============================================================ */

/* ---------- 01 reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
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%}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit}

/* ---------- 02 tokens ---------- */
:root{
  --ink:#0B1410;
  --turf:#10201A;
  --stand:#1C2B24;
  --lava:#F04E23;
  --lava-soft:#FF7A45;
  --cyan:#6FE3D2;
  --board:#F2F5F3;
  --stone:#C7C2B4;
  --moss:#A8B49A;
  --clay:#C4694A;
  --paper:#E8E2D4;

  --rail-w:272px;
  --topbar-h:62px;
  --gutter:clamp(18px,4vw,56px);
  --maxw:1180px;
  --gap:clamp(20px,3vw,40px);
  --sec-y:clamp(64px,9vw,148px);

  --r-xl:38px;
  --r-lg:26px;
  --r-md:18px;
  --r-pill:999px;

  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-display:"Helvetica Neue",Arial,system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-data:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;

  --line:rgba(199,194,180,.16);
  --line-strong:rgba(199,194,180,.3);
  --glow-lava:0 0 34px rgba(240,78,35,.38);
  --glow-cyan:0 0 24px rgba(111,227,210,.28);
}

/* ---------- 03 base ---------- */
body{
  min-height:100vh;
  padding-left:var(--rail-w);
  background:var(--ink);
  color:var(--board);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.16;letter-spacing:-.015em}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.nt-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 04 跳至主内容 ---------- */
.nt-skip{
  position:fixed;top:-120px;left:14px;z-index:130;
  padding:11px 20px;border-radius:var(--r-pill);
  background:var(--lava);color:#0B1410;font-weight:700;font-size:.85rem;letter-spacing:.06em;
  text-decoration:none;transition:top .2s ease;
}
.nt-skip:focus{top:14px}

/* ---------- 05 阅读进度 ---------- */
.nt-progress{
  position:fixed;top:0;left:var(--rail-w);right:0;height:2px;z-index:95;
  background:rgba(199,194,180,.14);pointer-events:none;
}
.nt-progress__bar{
  display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--lava),var(--lava-soft) 55%,var(--cyan));
  transition:transform .16s linear;
}

/* ---------- 06 左侧入口灯箱（头部） ---------- */
.nt-rail{
  position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);z-index:90;
  background:linear-gradient(180deg,#0B1410 0%,#10201A 60%,#0B1410 100%);
  border-right:1px solid var(--line);
  overflow:hidden;
}
.nt-rail::before{
  content:"";position:absolute;top:-12%;left:-40%;right:-40%;height:58%;
  background:radial-gradient(58% 100% at 34% 0%,rgba(111,227,210,.13),transparent 70%);
  pointer-events:none;
}
.nt-rail::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:repeating-linear-gradient(180deg,rgba(199,194,180,.055) 0 1px,transparent 1px 46px);
}
.nt-rail__inner{
  position:relative;z-index:1;display:flex;flex-direction:column;gap:24px;
  height:100%;padding:26px 20px 22px;overflow-y:auto;
}
.nt-rail__top{display:flex;flex-direction:column;gap:12px}
.nt-rail__brand{display:flex;flex-direction:column;gap:10px}

.nt-brandmark{
  display:flex;flex-direction:column;gap:2px;
  text-decoration:none;color:var(--board);
}
.nt-brandmark__num{
  font-family:var(--font-data);font-weight:700;line-height:.88;
  font-size:clamp(2.5rem,3.6vw,3.3rem);letter-spacing:-.05em;
  color:var(--board);text-shadow:0 0 34px rgba(240,78,35,.45);
}
.nt-brandmark__word{
  font-family:var(--font-display);font-size:.98rem;font-weight:800;
  letter-spacing:.34em;color:var(--moss);padding-left:2px;
}
.nt-brandmark__sub{font-size:.7rem;letter-spacing:.16em;color:var(--stone);opacity:.85}

.nt-toggle{display:none}

.nt-nav{display:flex;flex-direction:column;flex:1;min-height:0;gap:20px}
.nt-nav__list{display:flex;flex-direction:column;gap:4px}
.nt-nav__link{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:var(--r-md);
  color:var(--stone);text-decoration:none;font-size:.95rem;font-weight:600;letter-spacing:.02em;
  transition:color .25s ease,background .25s ease;
}
.nt-nav__link::before{
  content:"";position:absolute;left:0;top:50%;width:3px;height:0;border-radius:3px;
  background:var(--lava);transform:translateY(-50%);transition:height .28s ease;
}
.nt-nav__link:hover{color:var(--board);background:rgba(111,227,210,.07)}
.nt-nav__link:hover::before{height:56%}
.nt-nav__link[aria-current="page"]{
  color:var(--board);
  background:linear-gradient(90deg,rgba(240,78,35,.24),rgba(240,78,35,0) 90%);
}
.nt-nav__link[aria-current="page"]::before{height:68%}
.nt-nav__link[aria-current="page"] .nt-nav__index{color:var(--lava-soft)}
.nt-nav__index{
  font-family:var(--font-data);font-size:.7rem;font-weight:600;letter-spacing:.08em;
  color:var(--moss);
}
.nt-nav__label{line-height:1.2}

.nt-rail__foot{
  margin-top:auto;display:flex;flex-direction:column;gap:12px;
  padding-top:18px;border-top:1px solid var(--line);
}
.nt-account{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 18px;border-radius:var(--r-pill);
  border:1px solid rgba(111,227,210,.5);background:rgba(111,227,210,.06);
  color:var(--cyan);text-decoration:none;font-size:.88rem;font-weight:700;letter-spacing:.12em;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease,color .25s ease;
}
.nt-account:hover{background:rgba(111,227,210,.16);border-color:var(--cyan);color:var(--board);box-shadow:var(--glow-cyan)}
.nt-account__dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.nt-rail__status{
  display:flex;align-items:center;gap:8px;
  font-size:.68rem;letter-spacing:.12em;color:var(--stone);opacity:.8;
}
.nt-rail__pulse{
  width:6px;height:6px;border-radius:50%;background:var(--lava);
  box-shadow:0 0 0 0 rgba(240,78,35,.6);animation:nt-pulse 2.6s ease-out infinite;
}
@keyframes nt-pulse{
  0%{box-shadow:0 0 0 0 rgba(240,78,35,.55)}
  70%{box-shadow:0 0 0 9px rgba(240,78,35,0)}
  100%{box-shadow:0 0 0 0 rgba(240,78,35,0)}
}

/* ---------- 07 页脚 ---------- */
.nt-foot{
  position:relative;margin-top:clamp(48px,8vw,120px);overflow:hidden;
  background:linear-gradient(180deg,#0E1B16,#0B1410);
  border-top:1px solid var(--line);
}
.nt-foot::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:repeating-linear-gradient(90deg,rgba(199,194,180,.05) 0 1px,transparent 1px 46px);
}
.nt-foot__beam{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(70% 120% at 12% 0%,rgba(240,78,35,.18),transparent 62%),
    radial-gradient(60% 110% at 88% 8%,rgba(111,227,210,.13),transparent 66%);
}
.nt-foot__inner{
  position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,2fr);
  gap:clamp(28px,4vw,64px);padding-block:clamp(44px,6vw,84px);
}
.nt-foot__lead{display:flex;flex-direction:column;gap:14px}
.nt-brandmark--foot .nt-brandmark__num{font-size:2.5rem;text-shadow:0 0 26px rgba(240,78,35,.4)}
.nt-brandmark--foot .nt-brandmark__word{font-size:.84rem;letter-spacing:.3em}
.nt-foot__line{
  font-family:var(--font-display);font-size:1.12rem;font-weight:800;letter-spacing:.01em;color:var(--board);
}
.nt-foot__line--dim{font-size:.9rem;line-height:1.85;color:var(--stone);max-width:34ch}
.nt-foot__cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(20px,3vw,36px)}
.nt-foot__col{display:flex;flex-direction:column;gap:14px}
.nt-foot__title{font-size:.7rem;font-weight:600;letter-spacing:.18em;color:var(--moss);text-transform:uppercase}
.nt-foot__list{display:flex;flex-direction:column;gap:10px}
.nt-foot__link{
  color:var(--stone);text-decoration:none;font-size:.9rem;
  transition:color .2s ease;
}
.nt-foot__link:hover{color:var(--lava-soft)}
.nt-foot__list--data{gap:14px}
.nt-foot__k{display:block;font-size:.66rem;letter-spacing:.14em;color:var(--moss)}
.nt-foot__v{
  font-family:var(--font-data);font-size:.82rem;color:var(--board);
  word-break:break-all;line-height:1.6;
}
.nt-foot__meta{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:10px 28px;
  padding-block:22px;border-top:1px solid var(--line);
  font-size:.74rem;letter-spacing:.05em;color:var(--stone);
}
.nt-foot__copy{color:var(--stone)}
.nt-foot__icp{font-family:var(--font-data);color:var(--stone)}
.nt-foot__addr{margin-left:auto}

/* ---------- 08 页面容器与栅格 ---------- */
.nt-wrap{
  width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter);
}
.nt-section{position:relative;padding-block:var(--sec-y)}
.nt-section--turf{background:var(--turf)}
.nt-section--stand{background:var(--stand)}
.nt-section--edge{border-top:1px solid var(--line)}
.nt-section--paper{background:var(--paper);color:#16211C}
.nt-section--paper .nt-lede,
.nt-section--paper .nt-chapter__note,
.nt-section--paper .nt-note,
.nt-section--paper .nt-foot__line--dim{color:#4A5A50}
.nt-section--paper .nt-index,
.nt-section--paper .nt-card__meta{color:#5C6B60}
.nt-section--paper .nt-chapter__num{color:rgba(22,33,28,.09)}
.nt-section--paper .nt-card{background:rgba(22,33,28,.05);border-color:rgba(22,33,28,.14)}
.nt-section--paper .nt-rule,
.nt-section--paper .nt-table th,
.nt-section--paper .nt-table td,
.nt-section--paper .nt-qa{border-color:rgba(22,33,28,.16)}

.nt-grid{display:grid;gap:var(--gap)}
.nt-grid--73{grid-template-columns:minmax(0,7fr) minmax(0,3fr)}
.nt-grid--37{grid-template-columns:minmax(0,3fr) minmax(0,7fr)}
.nt-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.nt-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.nt-grid--split{grid-template-columns:repeat(2,minmax(0,1fr));align-items:center}

.nt-aside{
  position:sticky;top:clamp(24px,6vh,72px);align-self:start;
  display:flex;flex-direction:column;gap:18px;
  font-size:.85rem;line-height:1.8;color:var(--stone);
}

/* ---------- 09 排版 ---------- */
.nt-display{
  font-family:var(--font-display);font-weight:200;
  font-size:clamp(2.5rem,6vw,6rem);line-height:1.02;letter-spacing:-.03em;color:var(--board);
}
.nt-lede{max-width:42ch;font-size:clamp(1rem,1.5vw,1.16rem);line-height:1.85;color:var(--stone)}
.nt-index{
  display:inline-block;font-size:.75rem;font-weight:500;letter-spacing:.08em;
  color:var(--stone);
}
.nt-data{
  font-family:var(--font-data);font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.nt-link{
  color:var(--cyan);text-decoration:none;
  border-bottom:1px solid rgba(111,227,210,.35);
  transition:border-color .2s ease,color .2s ease;
}
.nt-link:hover{border-bottom-color:var(--cyan);color:var(--board)}
.nt-rule{height:1px;border:0;background:var(--line);margin:0}

/* ---------- 10 章节编号体系 ---------- */
.nt-chapter{position:relative;padding-top:clamp(46px,7vw,96px)}
.nt-chapter__num{
  position:absolute;top:0;left:-.06em;
  font-family:var(--font-data);font-weight:200;
  font-size:clamp(3.6rem,10vw,8rem);line-height:.8;letter-spacing:-.06em;
  color:rgba(242,245,243,.075);
  pointer-events:none;user-select:none;
}
.nt-chapter__body{display:flex;flex-direction:column;align-items:flex-end;text-align:right;gap:10px}
.nt-chapter__title{font-size:clamp(1.45rem,3.1vw,2.5rem);font-weight:800;letter-spacing:-.02em}
.nt-chapter__note{max-width:44ch;font-size:.95rem;color:var(--stone)}

/* ---------- 11 面包屑 ---------- */
.nt-crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:.76rem;letter-spacing:.06em;color:var(--stone);
}
.nt-crumbs__link{color:var(--stone);text-decoration:none;transition:color .2s ease}
.nt-crumbs__link:hover{color:var(--cyan)}
.nt-crumbs__sep{color:rgba(199,194,180,.4)}
.nt-crumbs__current{color:var(--board)}

/* ---------- 12 按钮 ---------- */
.nt-btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-family:var(--font-body);font-size:.95rem;font-weight:700;letter-spacing:.06em;
  text-decoration:none;cursor:pointer;
  transition:transform .25s ease,background .25s ease,border-color .25s ease,color .25s ease,box-shadow .25s ease;
}
.nt-btn--solid{background:var(--lava);color:#0B1410;box-shadow:var(--glow-lava)}
.nt-btn--solid:hover{background:var(--lava-soft);transform:translateY(-2px)}
.nt-btn--ghost{border-color:var(--line-strong);color:var(--board);background:transparent}
.nt-btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.nt-btn--quiet{border-color:rgba(111,227,210,.42);color:var(--cyan);background:rgba(111,227,210,.06)}
.nt-btn--quiet:hover{background:rgba(111,227,210,.16);color:var(--board)}

/* ---------- 13 卡片 / 标签 ---------- */
.nt-card{
  display:flex;flex-direction:column;gap:14px;
  padding:clamp(20px,2.4vw,32px);
  background:var(--stand);border:1px solid var(--line);border-radius:var(--r-lg);
}
.nt-card__title{font-size:1.08rem;font-weight:800;letter-spacing:-.01em}
.nt-card__meta{font-family:var(--font-data);font-size:.73rem;letter-spacing:.08em;color:var(--moss)}
.nt-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  border:1px solid rgba(168,180,154,.45);color:var(--moss);
  font-size:.71rem;font-weight:600;letter-spacing:.1em;
}
.nt-tag--lava{border-color:rgba(240,78,35,.5);color:var(--lava-soft)}
.nt-tag--cyan{border-color:rgba(111,227,210,.5);color:var(--cyan)}
.nt-tag--clay{border-color:rgba(196,105,74,.55);color:var(--clay)}

/* ---------- 14 比分卡 ---------- */
.nt-score{
  position:relative;overflow:hidden;display:grid;gap:18px;
  padding:clamp(20px,3vw,34px);
  background:linear-gradient(160deg,#15251E,#0E1A15);
  border:1px solid var(--line);border-radius:var(--r-xl);
}
.nt-score::after{
  content:"";position:absolute;top:-70px;right:-70px;width:230px;height:230px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,78,35,.3),transparent 70%);pointer-events:none;
}
.nt-score--live{border-color:rgba(240,78,35,.45)}
.nt-score--final{border-color:var(--line)}
.nt-score--upcoming{border-color:rgba(111,227,210,.28)}
.nt-score__head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.nt-score__stage{font-size:.71rem;letter-spacing:.14em;color:var(--moss)}
.nt-score__row{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:clamp(10px,2vw,26px)}
.nt-score__team{font-family:var(--font-display);font-weight:800;font-size:clamp(.95rem,1.6vw,1.2rem)}
.nt-score__team--away{text-align:right}
.nt-score__num{
  font-family:var(--font-data);font-weight:700;font-variant-numeric:tabular-nums;
  font-size:clamp(2.4rem,6vw,4rem);line-height:1;color:var(--board);
  text-shadow:0 0 30px rgba(240,78,35,.35);
}
.nt-score--live .nt-score__num{color:var(--lava-soft)}
.nt-score__meta{
  display:flex;flex-wrap:wrap;gap:8px 18px;
  font-family:var(--font-data);font-size:.74rem;color:var(--stone);
}
.nt-score__flash{animation:nt-flash .3s ease-out}
@keyframes nt-flash{
  0%{color:var(--lava);text-shadow:0 0 44px rgba(240,78,35,.85)}
  100%{color:var(--board);text-shadow:0 0 30px rgba(240,78,35,.35)}
}

/* ---------- 15 图片容器 ---------- */
.nt-media{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  aspect-ratio:16/10;
  background:linear-gradient(150deg,#16241D,#0C1613);
}
.nt-media img,.nt-media video{width:100%;height:100%;object-fit:cover}
.nt-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(11,20,16,0) 45%,rgba(11,20,16,.6) 100%),
    repeating-linear-gradient(0deg,rgba(242,245,243,.035) 0 1px,transparent 1px 3px);
}
.nt-media--wide{aspect-ratio:21/9}
.nt-media--tall{aspect-ratio:3/4}
.nt-media--square{aspect-ratio:1/1}
.nt-media__cap{
  position:absolute;left:18px;bottom:16px;z-index:2;
  font-size:.71rem;letter-spacing:.08em;color:var(--stone);
}

/* ---------- 16 时间轴 ---------- */
.nt-timeline{position:relative;display:flex;flex-direction:column;gap:26px;padding-left:26px}
.nt-timeline::before{
  content:"";position:absolute;left:6px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,transparent,var(--line-strong),transparent);
}
.nt-timeline__item{position:relative;display:flex;flex-direction:column;gap:6px}
.nt-timeline__dot{
  position:absolute;left:-26px;top:8px;width:13px;height:13px;border-radius:50%;
  background:var(--ink);border:2px solid var(--clay);
}
.nt-timeline__meta{font-family:var(--font-data);font-size:.72rem;letter-spacing:.08em;color:var(--moss)}
.nt-timeline__title{font-weight:800}

/* ---------- 17 标签页 / 筛选 ---------- */
.nt-tabs{display:flex;flex-wrap:wrap;gap:8px}
.nt-tabs__btn{
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);color:var(--stone);
  font-size:.84rem;font-weight:600;letter-spacing:.06em;cursor:pointer;
  transition:color .25s ease,border-color .25s ease,background .25s ease;
}
.nt-tabs__btn:hover{color:var(--board);border-color:var(--cyan)}
.nt-tabs__btn[aria-selected="true"]{background:var(--lava);border-color:var(--lava);color:#0B1410}
.nt-panel{padding-top:20px}
.nt-panel[hidden]{display:none}
.nt-chips{display:flex;flex-wrap:wrap;gap:8px}
.nt-chip{
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(168,180,154,.35);color:var(--moss);
  font-size:.78rem;font-weight:600;letter-spacing:.08em;cursor:pointer;
  transition:color .25s ease,border-color .25s ease,background .25s ease;
}
.nt-chip:hover{color:var(--board);border-color:var(--cyan)}
.nt-chip[aria-pressed="true"]{background:rgba(111,227,210,.14);border-color:var(--cyan);color:var(--cyan)}

/* ---------- 18 折叠问答 ---------- */
.nt-qa{border-bottom:1px solid var(--line)}
.nt-qa__q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;
  padding:20px 0;text-align:left;cursor:pointer;
  font-family:var(--font-display);font-size:clamp(1rem,1.8vw,1.22rem);font-weight:800;color:var(--board);
}
.nt-qa__sign{
  position:relative;flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-strong);
}
.nt-qa__sign::before,.nt-qa__sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--cyan);transform:translate(-50%,-50%);
}
.nt-qa__sign::before{width:11px;height:1.5px}
.nt-qa__sign::after{width:1.5px;height:11px;transition:transform .25s ease}
.nt-qa[data-open] .nt-qa__sign::after{transform:translate(-50%,-50%) scaleY(0)}
.nt-qa__a{padding:0 0 22px;max-width:64ch;font-size:.95rem;color:var(--stone)}
.nt-qa__a[hidden]{display:none}

/* ---------- 19 列表 / 边注 / 表格 ---------- */
.nt-list{display:flex;flex-direction:column;gap:12px}
.nt-list__item{display:flex;gap:14px;align-items:flex-start;color:var(--stone)}
.nt-list__mark{flex:none;margin-top:.72em;width:16px;height:1px;background:var(--lava)}
.nt-note{border-left:2px solid var(--clay);padding:12px 0 12px 18px;font-size:.9rem;color:var(--stone)}
.nt-note__title{display:block;margin-bottom:4px;font-weight:800;color:var(--board)}
.nt-table{width:100%;border-collapse:collapse;font-size:.9rem}
.nt-table th,.nt-table td{padding:13px 14px;text-align:left;border-bottom:1px solid var(--line)}
.nt-table th{font-size:.71rem;font-weight:600;letter-spacing:.1em;color:var(--moss)}

/* ---------- 20 进入视口动效 ---------- */
.js-reveal [data-reveal],
.js-reveal .nt-reveal{
  opacity:0;transform:translateY(24px);
  transition:opacity .6s cubic-bezier(.22,.6,.36,1),transform .6s cubic-bezier(.22,.6,.36,1);
}
.js-reveal [data-reveal].is-visible,
.js-reveal .nt-reveal.is-visible{opacity:1;transform:none}

/* ---------- 21 平板 ---------- */
@media (max-width:1200px){
  :root{--rail-w:230px}
  .nt-brandmark__word{font-size:.88rem;letter-spacing:.26em}
}
@media (max-width:1024px){
  .nt-grid--73,.nt-grid--37,.nt-grid--3,.nt-grid--2,.nt-grid--split{grid-template-columns:minmax(0,1fr)}
  .nt-aside{position:static}
  .nt-foot__inner{grid-template-columns:minmax(0,1fr)}
  .nt-foot__cols{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* ---------- 22 移动端：竖栏变顶部横栏 + 下拉面板 ---------- */
@media (max-width:960px){
  body{padding-left:0;padding-top:var(--topbar-h)}
  .nt-progress{left:0}
  .nt-rail{
    left:0;right:0;bottom:auto;width:auto;height:auto;overflow:visible;
    border-right:0;border-bottom:1px solid var(--line);
    background:#0B1410;
  }
  .nt-rail::before{top:0;left:-20%;right:-20%;height:120%;opacity:.9}
  .nt-rail::after{display:none}
  .nt-rail__inner{height:auto;gap:0;padding:0;overflow:visible}
  .nt-rail__top{
    flex-direction:row;align-items:center;justify-content:space-between;gap:12px;
    min-height:var(--topbar-h);padding:10px 18px;
  }
  .nt-rail__brand{flex-direction:column;gap:2px}
  .nt-brandmark{flex-direction:row;align-items:baseline;gap:10px}
  .nt-brandmark__num{font-size:1.6rem;line-height:1}
  .nt-brandmark__word{font-size:.76rem;letter-spacing:.22em}
  .nt-brandmark__sub{font-size:.62rem;letter-spacing:.12em}

  .nt-toggle{
    display:inline-flex;align-items:center;gap:10px;
    padding:10px 16px;border-radius:var(--r-pill);
    border:1px solid rgba(111,227,210,.4);background:rgba(111,227,210,.06);
    color:var(--cyan);font-size:.78rem;font-weight:700;letter-spacing:.12em;cursor:pointer;
  }
  .nt-toggle__bars{display:inline-flex;flex-direction:column;gap:4px}
  .nt-toggle__bar{display:block;width:16px;height:1.5px;border-radius:2px;background:currentColor;transition:transform .25s ease}
  .nt-toggle[aria-expanded="true"] .nt-toggle__bar:first-child{transform:translateY(2.75px) rotate(45deg)}
  .nt-toggle[aria-expanded="true"] .nt-toggle__bar:last-child{transform:translateY(-2.75px) rotate(-45deg)}

  .nt-nav{
    position:absolute;top:100%;left:0;right:0;
    max-height:0;padding:0 18px;overflow:hidden;
    visibility:hidden;opacity:0;transform:translateY(-8px);
    background:#0B1410;border-bottom:1px solid var(--line);
    transition:max-height .3s ease,opacity .25s ease,transform .25s ease,visibility .25s ease,padding .25s ease;
  }
  .nt-nav[data-open]{
    max-height:78vh;overflow-y:auto;visibility:visible;opacity:1;transform:none;
    padding:14px 18px 22px;
  }
  .nt-nav__list{gap:2px}
  .nt-nav__link{padding:13px 14px;font-size:1rem}
  .nt-rail__foot{margin-top:18px}
  .nt-account{width:100%}
}

/* ---------- 23 手机 ---------- */
@media (max-width:640px){
  .nt-foot__cols{grid-template-columns:minmax(0,1fr)}
  .nt-foot__addr{margin-left:0;width:100%}
  .nt-chapter__body{align-items:flex-start;text-align:left}
  .nt-media,.nt-media--wide{aspect-ratio:4/3}
  .nt-score__row{grid-template-columns:1fr auto 1fr;gap:10px}
  .nt-btn{width:100%;justify-content:center}
}

/* ---------- 24 减少动态偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .js-reveal [data-reveal],
  .js-reveal .nt-reveal{opacity:1;transform:none}
  .nt-progress__bar{transition:none}
}