/* 寻墨 · 题库搜索 官网样式
   设计基线：砚池墨黑 + 朱砂印 + 宣纸字。零外链资源（国内直连，不能依赖 Google Fonts / CDN）。 */

:root {
  --ink-void: #06070a;
  --ink-0: #0a0c11;
  --ink-1: #0f1218;
  --ink-2: #161a22;
  --ink-3: #1e2330;
  --paper: #ece5d8;
  --paper-2: #bdb7ac;
  --paper-3: #86837c;
  --cinnabar: #d3402a;
  --cinnabar-lo: #a82f1e;
  --cinnabar-hi: #f0603f;
  --indigo: #3f6d94;
  --jade: #4d8a72;
  --hair: rgba(236, 229, 216, 0.12);
  --hair-2: rgba(236, 229, 216, 0.06);
  --serif: "Songti SC", "STSong", "Source Han Serif SC", "Noto Serif CJK SC", "SimSun", "FangSong", serif;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", "SF Mono", "Consolas", "Menlo", monospace;
  --maxw: 1080px;
  --pad: clamp(18px, 5vw, 40px);
  --r: 3px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink-0);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  /* 极淡的墨色晕：左上冷青、右下朱砂，压成背景而不是渐变彩带 */
  background-image:
    radial-gradient(120% 80% at 8% -10%, rgba(63, 109, 148, 0.16), transparent 60%),
    radial-gradient(90% 70% at 100% 8%, rgba(211, 64, 42, 0.11), transparent 55%),
    linear-gradient(180deg, #0a0c11, #080a0e 60%, #06070a);
  background-attachment: fixed;
}

/* 纸纹噪点，一整站统一质感 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.055'/%3E%3C/svg%3E");
}

main { position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 700; letter-spacing: -0.01em; line-height: 1.2; margin: 0; }
p { margin: 0 0 1em; }
img, svg { max-width: 100%; }
::selection { background: var(--cinnabar); color: #fff; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }
.wide { max-width: 1320px; }

.mono { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; }
.kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cinnabar);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.kicker::before { content: ""; width: 22px; height: 1px; background: var(--cinnabar); }
.dim { color: var(--paper-2); }
.nv:not(:empty)::after { content: " · "; }
.dim2 { color: var(--paper-3); }
.hair { color: var(--hair); }

/* ---------- 页头 ---------- */
.head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(8, 10, 14, 0.82);
  backdrop-filter: blur(14px) saturate(120%);
  border-bottom: 1px solid var(--hair-2);
}
.head-in {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
  height: 62px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.seal {
  width: 28px; height: 28px;
  display: grid; place-items: center;
  background: var(--cinnabar);
  color: #fff8f0;
  font-family: var(--serif);
  font-size: 12px;
  line-height: 1;
  letter-spacing: -0.04em;
  writing-mode: vertical-rl;
  border-radius: 2px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28), 0 0 18px rgba(211, 64, 42, 0.35);
  transform: rotate(-4deg);
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.brand:hover .seal { transform: rotate(4deg) scale(1.06); }
.brand-name { font-family: var(--serif); font-size: 1.02rem; letter-spacing: 0.12em; }
.brand-sub { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.16em; color: var(--paper-3); display: block; margin-top: -4px; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav a {
  font-size: 0.86rem;
  padding: 7px 12px;
  border-radius: var(--r);
  color: var(--paper-2);
  position: relative;
  transition: color 0.2s, background 0.2s;
}
.nav a:hover { color: var(--paper); background: rgba(236, 229, 216, 0.05); }
.nav a[aria-current] { color: var(--paper); }
.nav a[aria-current]::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: 2px;
  height: 1px;
  background: var(--cinnabar);
}
.head .btn { margin-left: 8px; }

.burger {
  display: none;
  margin-left: auto;
  width: 38px; height: 34px;
  background: none;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  cursor: pointer;
  padding: 0;
}
.burger span { display: block; width: 16px; height: 1px; background: var(--paper); margin: 4px auto; transition: transform 0.25s, opacity 0.2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-radius: var(--r);
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 0.18s, box-shadow 0.25s, background 0.2s, border-color 0.2s;
}
.btn-fill { background: var(--cinnabar); color: #fff; box-shadow: 0 0 0 rgba(211, 64, 42, 0); }
.btn-fill:hover { background: var(--cinnabar-hi); transform: translateY(-1px); box-shadow: 0 10px 28px -12px rgba(240, 96, 63, 0.8); }
.btn-line { border-color: var(--hair); color: var(--paper); background: rgba(236, 229, 216, 0.02); }
.btn-line:hover { border-color: var(--paper-2); transform: translateY(-1px); }
.btn-sm { padding: 7px 13px; font-size: 0.8rem; }
.btn[data-disabled="true"] { opacity: 0.5; cursor: progress; }
.btn-dim { border: 1px dashed var(--hair); color: var(--paper-3); background: none; cursor: not-allowed; }
.btn-dim:hover { border-color: var(--cinnabar-lo); color: var(--paper-2); }

/* ---------- 公告滚动条 ---------- */
.ticker {
  border-bottom: 1px solid var(--hair-2);
  background: linear-gradient(90deg, rgba(211, 64, 42, 0.1), transparent 45%);
  font-size: 0.82rem;
  overflow: hidden;
  position: relative;
}
.ticker-in { max-width: var(--maxw); margin: 0 auto; padding: 9px var(--pad); display: flex; gap: 12px; align-items: baseline; }
.ticker-tag {
  flex-shrink: 0;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: var(--cinnabar-hi);
  border: 1px solid rgba(211, 64, 42, 0.35);
  border-radius: 2px;
  padding: 1px 7px;
}
/* min-width:0 是关键：否则 nowrap 会把整个文档撑宽，移动端右侧内容被裁掉 */
.ticker-txt { flex: 1 1 auto; min-width: 0; color: var(--paper-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ticker-txt b { color: var(--paper); font-weight: 600; }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  padding: clamp(56px, 12vh, 132px) 0 clamp(48px, 8vh, 96px);
  overflow: hidden;
}
/* 习字格：整版淡界格，只在 hero 出现 */
.hero::before {
  content: "";
  position: absolute;
  inset: -2px 0 auto;
  height: 100%;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    repeating-linear-gradient(90deg, var(--hair-2) 0 1px, transparent 1px 84px),
    repeating-linear-gradient(0deg, var(--hair-2) 0 1px, transparent 1px 84px);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 85%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 85%);
}
.hero-in { position: relative; display: grid; gap: clamp(28px, 5vw, 64px); grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); align-items: end; }
h1.big { font-size: clamp(2.9rem, 8.4vw, 6.2rem); line-height: 0.98; letter-spacing: 0.01em; }
h1.big em { font-style: normal; color: var(--cinnabar); }
.line { display: block; overflow: hidden; }
.line > span { display: block; }
.lead { font-size: clamp(1rem, 2.4vw, 1.14rem); color: var(--paper-2); max-width: 44ch; margin-top: 26px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; align-items: center; }
.cta-note { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; color: var(--paper-3); }

/* 竖排题签 */
.hero-side { display: grid; gap: 18px; justify-items: end; text-align: right; }
.vtitle {
  writing-mode: vertical-rl;
  font-family: var(--serif);
  font-size: 1.02rem;
  letter-spacing: 0.4em;
  color: var(--paper-2);
  border-right: 1px solid var(--hair);
  padding-right: 14px;
  max-height: 190px;
}
.meta-list { display: grid; gap: 5px; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em; color: var(--paper-3); }
.meta-list b { color: var(--paper-2); font-weight: 400; }

/* ---------- 数据条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair); }
.stat { padding: 22px 18px; border-left: 1px solid var(--hair-2); }
.stat:first-child { border-left: 0; }
.stat b { display: block; font-family: var(--serif); font-size: clamp(1.5rem, 4vw, 2.3rem); line-height: 1; letter-spacing: 0; }
.stat span { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; color: var(--paper-3); text-transform: uppercase; }
.stat i { font-style: normal; color: var(--cinnabar); }

/* ---------- 区块 ---------- */
section.blk { padding: clamp(48px, 7.5vw, 84px) 0; }
.blk-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; margin-bottom: 40px; }
.blk-head h2 { font-size: clamp(1.7rem, 4.4vw, 2.6rem); max-width: 22ch; }
.blk-head p { color: var(--paper-2); max-width: 46ch; margin: 0; font-size: 0.95rem; }

/* 卡片 */
.grid { display: grid; gap: 16px; }
/* 网格项默认 min-width:auto 会被 pre/表格的 min-content 顶宽，窄屏上整页横向溢出 */
.grid > * { min-width: 0; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  position: relative;
  padding: 26px 24px 28px;
  background: linear-gradient(180deg, rgba(22, 26, 34, 0.85), rgba(15, 18, 24, 0.7));
  border: 1px solid var(--hair-2);
  border-radius: var(--r);
  transition: border-color 0.3s, transform 0.3s, background 0.3s;
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 26px; height: 26px;
  border-top: 1px solid var(--hair);
  border-right: 1px solid var(--hair);
  opacity: 0;
  transition: opacity 0.3s;
}
.card:hover { border-color: rgba(211, 64, 42, 0.4); transform: translateY(-3px); }
.card:hover::after { opacity: 1; }
.card h3 { font-size: 1.16rem; margin-bottom: 10px; }
.card p { font-size: 0.9rem; color: var(--paper-2); margin: 0; }
.card .num { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.14em; color: var(--cinnabar); display: block; margin-bottom: 14px; }
.card .fine { display: block; margin-top: 14px; font-size: 0.78rem; color: var(--paper-3); border-top: 1px dashed var(--hair-2); padding-top: 12px; }

/* 特性长条（左标签右正文） */
.rows { border-top: 1px solid var(--hair); }
.row { display: grid; grid-template-columns: 210px minmax(0, 1fr) 130px; gap: 24px; padding: 26px 2px; border-bottom: 1px solid var(--hair-2); align-items: start; transition: background 0.25s; }
.row:hover { background: rgba(236, 229, 216, 0.025); }
.row > h3, .row .lbl { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.14em; color: var(--paper-3); text-transform: uppercase; padding-top: 5px; margin: 0; }
.row .body h3 { font-family: var(--serif); font-size: 1.24rem; margin: 0 0 8px; }
.row .body p { font-size: 0.92rem; color: var(--paper-2); margin: 0; }
.row .body p + p { margin-top: 0.7em; }
.state { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.08em; padding: 3px 9px; border-radius: 2px; white-space: nowrap; }
.row .state { justify-self: end; align-self: center; }
.row.c2 { grid-template-columns: 150px minmax(0, 1fr); }
.row.c3 { grid-template-columns: 190px minmax(0, 1fr); }
.s-ok { color: var(--jade); border: 1px solid rgba(77, 138, 114, 0.4); }
.s-warn { color: #d8a13a; border: 1px solid rgba(216, 161, 58, 0.35); }
.s-lab { color: var(--paper-3); border: 1px dashed var(--hair); }

/* 提示块 */
.note {
  border-left: 2px solid var(--cinnabar);
  background: linear-gradient(90deg, rgba(211, 64, 42, 0.08), transparent 70%);
  padding: 16px 20px;
  font-size: 0.88rem;
  color: var(--paper-2);
  border-radius: 0 var(--r) var(--r) 0;
  margin: 22px 0;
}
.note b { color: var(--paper); }
.note.jade { border-color: var(--jade); background: linear-gradient(90deg, rgba(77, 138, 114, 0.1), transparent 70%); }
.note.indigo { border-color: var(--indigo); background: linear-gradient(90deg, rgba(63, 109, 148, 0.12), transparent 70%); }

/* 内联代码 / 键名 */
code, .code { font-family: var(--mono); font-size: 0.84em; background: rgba(236, 229, 216, 0.07); border: 1px solid var(--hair-2); padding: 1px 6px; border-radius: 2px; color: #f2d3a4; }
pre { font-family: var(--mono); font-size: 0.78rem; line-height: 1.7; background: var(--ink-void); border: 1px solid var(--hair-2); border-radius: var(--r); padding: 16px 18px; overflow-x: auto; color: var(--paper-2); min-width: 0; max-width: 100%; }
pre code { background: none; border: 0; color: inherit; padding: 0; }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.tbl th { text-align: left; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--paper-3); font-weight: 400; padding: 12px 14px; border-bottom: 1px solid var(--hair); white-space: nowrap; }
.tbl td { padding: 14px; border-bottom: 1px solid var(--hair-2); vertical-align: top; }
.tbl tbody tr { transition: background 0.2s; }
.tbl tbody tr:hover { background: rgba(236, 229, 216, 0.03); }
.tbl .n { font-family: var(--mono); font-size: 0.8rem; color: var(--paper-2); white-space: nowrap; }
.tbl .nm { font-weight: 600; }
.tbl-wrap { min-width: 0; overflow-x: auto; border: 1px solid var(--hair-2); border-radius: var(--r); background: rgba(10, 12, 17, 0.6); }
.sha { font-family: var(--mono); font-size: 0.72rem; color: var(--indigo); }

/* 步骤 */
.steps { counter-reset: s; display: grid; gap: 2px; margin: 0; padding: 0; list-style: none; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 46px minmax(0, 1fr); gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--hair-2); }
.steps li::before { content: counter(s, decimal-leading-zero); font-family: var(--mono); font-size: 0.86rem; color: var(--cinnabar); padding-top: 3px; letter-spacing: 0.06em; }
.steps h3 { font-size: 1.02rem; margin: 0 0 5px; }
.steps p { font-size: 0.9rem; color: var(--paper-2); margin: 0; }

/* 折叠 FAQ */
details.qa { border-bottom: 1px solid var(--hair-2); padding: 4px 0; }
details.qa summary { cursor: pointer; list-style: none; padding: 18px 40px 18px 0; position: relative; font-family: var(--serif); font-size: 1.08rem; }
details.qa summary::-webkit-details-marker { display: none; }
details.qa summary::after { content: "+"; position: absolute; right: 8px; top: 18px; font-family: var(--mono); color: var(--cinnabar); transition: transform 0.25s; }
details.qa[open] summary::after { content: "−"; }
details.qa summary:hover { color: var(--cinnabar-hi); }
details.qa .a { padding: 0 0 20px; font-size: 0.92rem; color: var(--paper-2); max-width: 74ch; }
details.qa .a p:last-child { margin-bottom: 0; }

.dl-grid { display: grid; gap: 24px; grid-template-columns: minmax(0, 1fr) minmax(0, 320px); align-items: start; }

/* 页内目录 */
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 26px 0 0; }
.toc a { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; border: 1px solid var(--hair); border-radius: 2px; padding: 5px 11px; color: var(--paper-2); transition: border-color 0.2s, color 0.2s; }
.toc a:hover { border-color: var(--cinnabar); color: var(--paper); }

/* 页内锚点留白，避免被 sticky 头挡住 */
[id] { scroll-margin-top: 84px; }

/* 页面小标题（非 hero 页的头） */
.page-head { padding: clamp(48px, 9vh, 92px) 0 clamp(28px, 4vh, 44px); border-bottom: 1px solid var(--hair-2); }
.page-head h1 { font-size: clamp(2.1rem, 6vw, 3.6rem); margin-bottom: 16px; }
.page-head .lead { margin-top: 0; }

/* 结尾 CTA */
.closer { text-align: center; padding: clamp(60px, 10vw, 110px) 0; border-top: 1px solid var(--hair-2); background: radial-gradient(70% 120% at 50% 120%, rgba(211, 64, 42, 0.12), transparent 70%); }
.closer h2 { font-size: clamp(1.8rem, 5vw, 2.8rem); margin-bottom: 14px; }
.closer p { color: var(--paper-2); margin-bottom: 26px; }

/* 页脚 */
.foot { border-top: 1px solid var(--hair); background: var(--ink-void); padding: 46px 0 34px; position: relative; z-index: 1; }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 32px; }
.foot h4 { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--paper-3); font-weight: 400; margin-bottom: 14px; }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; font-size: 0.85rem; }
.foot ul a { color: var(--paper-2); }
.foot ul a:hover { color: var(--cinnabar-hi); }
.foot .sig { font-family: var(--serif); font-size: 1.1rem; letter-spacing: 0.14em; margin-bottom: 10px; }
.foot .legal { margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--hair-2); display: flex; flex-wrap: wrap; gap: 6px 22px; font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.05em; color: var(--paper-3); }
.foot .legal a:hover { color: var(--paper-2); }

/* 进场动画 */
[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity 0.7s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); transition-delay: var(--d, 0s); }
[data-reveal].in { opacity: 1; transform: none; }
.line > span { transform: translateY(105%); transition: transform 0.9s cubic-bezier(0.16, 1, 0.3, 1); transition-delay: var(--d, 0s); }
.ready .line > span { transform: none; }

/* 空 / 加载态 */
.empty { padding: 34px 20px; text-align: center; color: var(--paper-3); font-size: 0.88rem; border: 1px dashed var(--hair); border-radius: var(--r); }
.mini-row { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; padding: 12px 2px; border-bottom: 1px solid var(--hair-2); font-size: 0.92rem; transition: padding-left 0.25s, color 0.2s; }
.mini-row:hover { padding-left: 8px; color: var(--cinnabar-hi); }
.skel { height: 14px; border-radius: 2px; background: linear-gradient(90deg, rgba(236, 229, 216, 0.05), rgba(236, 229, 216, 0.12), rgba(236, 229, 216, 0.05)); background-size: 200% 100%; animation: sk 1.3s linear infinite; }
@keyframes sk { to { background-position: -200% 0; } }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-in { grid-template-columns: 1fr; align-items: start; }
  .hero-side { justify-items: start; text-align: left; }
  .vtitle { writing-mode: horizontal-tb; border-right: 0; border-left: 2px solid var(--cinnabar); padding: 0 0 0 12px; max-height: none; letter-spacing: 0.28em; }
  .g3, .g2 { grid-template-columns: minmax(0, 1fr); }
  .row, .row.c2, .row.c3 { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .row .state { justify-self: start; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .dl-grid { grid-template-columns: minmax(0, 1fr); }
  .stat:nth-child(3), .stat:nth-child(4) { border-top: 1px solid var(--hair-2); }
}
@media (max-width: 760px) {
  .nav {
    position: fixed;
    inset: 62px 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(6, 7, 10, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--hair);
    padding: 8px var(--pad) 18px;
    transform: translateY(-130%);
    transition: transform 0.32s cubic-bezier(0.2, 0.8, 0.2, 1);
  }
  .nav[data-open="true"] { transform: none; }
  .nav a { padding: 13px 4px; border-bottom: 1px solid var(--hair-2); font-size: 0.95rem; }
  .nav .btn { margin: 12px 0 0; justify-content: center; }
  .head .btn.desk { display: none; }
  .burger { display: block; }
  .foot-grid { grid-template-columns: 1fr; }
  h1.big { font-size: clamp(2.5rem, 13vw, 3.4rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
  [data-reveal] { opacity: 1; transform: none; }
  .line > span { transform: none; }
}