/* 命定之诗与黄昏之歌 · 站点样式
   主题取自阿斯塔利亚的世界观：虚海般的深蓝天幕、星轨与星盘、诸神圣典上的古金。
   玻璃面板浮在天幕上；形状用小圆角与切角，不用胶囊。
   标题用宋体（Noto Serif SC），版本号与章节编号用罗马碑铭体（Cinzel），西文小标题用 Cormorant 斜体，正文用系统黑体。
   组件只在这里定义一次；页面只写内容，按需挑组件。
   任何组件都认 --tone 变量：在元素上写 style="--tone:#ff7ab6" 就能换成那一处的主题色。 */

:root {
  --night-0: #060810;
  --ink: #ede7d9;
  --mute: #b5b6c8;
  --faint: #83869d;
  --gold: #d9b56c;
  --gold-hi: #f2dfa7;
  --gold-deep: #a98337;
  --gold-ink: #1c1405;
  --gold-leaf: linear-gradient(180deg, #f2e1b2, #c9a55e);
  --azure: #93b4f0;
  --tone: var(--gold);
  --line: rgba(232, 214, 170, 0.09);
  --line-hi: rgba(232, 214, 170, 0.3);
  --glass: linear-gradient(165deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.022) 62%);
  --glass-line: rgba(232, 214, 170, 0.13);
  --glass-hl: inset 0 1px 0 rgba(255, 245, 220, 0.07);
  --blur: blur(18px) saturate(140%);
  --shadow: 0 28px 60px -32px rgba(2, 3, 10, 0.9);
  --r-xs: 3px;
  --r-sm: 5px;
  --r: 8px;
  --r-lg: 12px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  --display: "Cinzel", "Noto Serif SC", Georgia, serif;
  --latin: "Cormorant Garamond", "Noto Serif SC", Georgia, serif;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --mono: "Cascadia Mono", "JetBrains Mono", Consolas, ui-monospace, "SFMono-Regular", Menlo, "Microsoft YaHei UI", "PingFang SC", monospace;
  --bar-h: 62px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
  background: var(--night-0);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--bar-h) + 24px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font: 16px/1.8 var(--sans);
  letter-spacing: 0.01em;
  font-variant-numeric: lining-nums;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

/* ---------- 天幕 ----------
   底层：虚海深蓝 + 星云 + 星点 + 颗粒；上层：一枚淡金星盘，往下滚动时缓缓转动 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 .04'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='340' height='340'%3E%3Cg fill='%23fff'%3E%3Ccircle cx='24' cy='38' r='.8' opacity='.6'/%3E%3Ccircle cx='96' cy='12' r='.6' opacity='.4'/%3E%3Ccircle cx='170' cy='64' r='1.1' opacity='.55'/%3E%3Ccircle cx='250' cy='26' r='.7' opacity='.45'/%3E%3Ccircle cx='318' cy='90' r='.9' opacity='.5'/%3E%3Ccircle cx='60' cy='140' r='.6' opacity='.35'/%3E%3Ccircle cx='140' cy='182' r='.8' opacity='.45'/%3E%3Ccircle cx='222' cy='150' r='.6' opacity='.35'/%3E%3Ccircle cx='296' cy='210' r='1' opacity='.45'/%3E%3Ccircle cx='30' cy='252' r='.9' opacity='.4'/%3E%3Ccircle cx='112' cy='300' r='.6' opacity='.35'/%3E%3Ccircle cx='196' cy='262' r='.7' opacity='.4'/%3E%3Ccircle cx='270' cy='318' r='.6' opacity='.3'/%3E%3C/g%3E%3C/svg%3E"),
    radial-gradient(48% 40% at 88% 6%, rgba(104, 92, 200, 0.2), transparent 70%),
    radial-gradient(44% 38% at 4% 22%, rgba(48, 128, 160, 0.16), transparent 70%),
    radial-gradient(60% 40% at 30% 104%, rgba(70, 60, 150, 0.2), transparent 72%),
    radial-gradient(30% 20% at 50% -4%, rgba(217, 181, 108, 0.1), transparent 70%),
    linear-gradient(180deg, #0a0d1d 0%, #0d1127 40%, #10132b 70%, #0b0e20 100%);
  background-size: 180px 180px, 340px 340px, auto, auto, auto, auto, auto;
}
body::after {
  content: "";
  position: fixed;
  z-index: -1;
  top: -26vh;
  right: -22vw;
  width: min(1180px, 112vw);
  aspect-ratio: 1;
  pointer-events: none;
  background: url("astrolabe.svg") center / contain no-repeat;
  opacity: 0.13;
}
@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    body::after { animation: orbit linear both; animation-timeline: scroll(root); }
  }
}
@keyframes orbit { to { transform: rotate(48deg); } }

/* ---------- 基础排版 ---------- */
h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.02em;
  text-wrap: balance;
}
h2 { font-size: clamp(28px, 4vw, 42px); line-height: 1.24; }
h3 { font-size: 19px; font-weight: 600; line-height: 1.5; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
img { max-width: 100%; height: auto; }
a { color: var(--gold); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--gold-hi); }
:where(p, li, .callout) a {
  text-decoration: underline;
  text-decoration-color: rgba(217, 181, 108, 0.4);
  text-underline-offset: 3px;
}
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
:focus-visible { outline: 1px solid var(--gold); outline-offset: 3px; border-radius: var(--r-xs); }
::selection { background: rgba(217, 181, 108, 0.35); color: #fff; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

.kicker {
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: 0.2em;
  color: var(--faint);
}
.kicker.latin {
  font: italic 500 19px/1.3 var(--latin);
  letter-spacing: 0.03em;
  color: var(--tone);
}
.latin { font-family: var(--latin); font-style: italic; letter-spacing: 0.02em; }
.lead { color: var(--mute); font-size: 17px; line-height: 1.85; max-width: 62ch; }
:where(main, .hero) p { color: var(--mute); }
.cap { display: block; margin-top: 10px; font-size: 13px; line-height: 1.7; color: var(--faint); }

/* ---------- 玻璃 ---------- */
.glass, .highlights a, .card, .compare, .callout, .note-card, .update-item, .latest, .tab, .compare-bar {
  background: var(--glass);
  border: 1px solid var(--glass-line);
  box-shadow: var(--glass-hl), var(--shadow);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
}
/* 鼠标经过时，面板上跟着一小片光 */
:is(.card, .compare, .update-item, .highlights a, .tab, .latest, .entry):hover {
  background-image:
    radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(242, 223, 167, 0.07), transparent 60%),
    var(--glass);
}
/* 重要面板的四角金线 */
.note-card::after, .panel::after, .latest::after {
  --c: rgba(217, 181, 108, 0.6);
  --l: 16px;
  content: "";
  position: absolute;
  inset: 7px;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(var(--c), var(--c)) left top / var(--l) 1px,
    linear-gradient(var(--c), var(--c)) left top / 1px var(--l),
    linear-gradient(var(--c), var(--c)) right top / var(--l) 1px,
    linear-gradient(var(--c), var(--c)) right top / 1px var(--l),
    linear-gradient(var(--c), var(--c)) left bottom / var(--l) 1px,
    linear-gradient(var(--c), var(--c)) left bottom / 1px var(--l),
    linear-gradient(var(--c), var(--c)) right bottom / var(--l) 1px,
    linear-gradient(var(--c), var(--c)) right bottom / 1px var(--l);
  background-repeat: no-repeat;
}

/* ---------- 顶栏：通顶无外框 ----------
   没有圆角边框，只在底边留一道 1px 暗金渐变线。
   页面停在最顶上时完全透明，和卷首连成一片；往下滚后出现一层极淡的顶部暗角，
   并轻微模糊身后的内容，保证文字可读。脚本会在页面顶部给 .topbar 加 .at-top。 */
.topbar { position: sticky; top: 0; z-index: 40; }
.bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  height: var(--bar-h);
  padding: 0 max(20px, calc((100% - 1120px) / 2 + 20px));
  background: linear-gradient(180deg, rgba(5, 7, 16, 0.86) 0%, rgba(5, 7, 16, 0.58) 65%, rgba(5, 7, 16, 0.32) 100%);
  backdrop-filter: blur(14px) saturate(130%);
  -webkit-backdrop-filter: blur(14px) saturate(130%);
  transition: background 0.45s var(--ease), backdrop-filter 0.45s var(--ease), -webkit-backdrop-filter 0.45s var(--ease);
}
.topbar.at-top .bar {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.bar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(150, 112, 46, 0), rgba(150, 112, 46, 0.7) 22%, rgba(217, 181, 108, 0.75) 50%, rgba(150, 112, 46, 0.7) 78%, rgba(150, 112, 46, 0));
  transition: opacity 0.45s var(--ease);
}
.topbar.at-top .bar::after { opacity: 0.6; }
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
  padding-right: 12px;
  color: var(--ink);
  font: 600 16px/1 var(--serif);
  letter-spacing: 0.1em;
  white-space: nowrap;
}
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.brand:hover { color: var(--gold-hi); }
.toc {
  flex: 1;
  min-width: 0;
  align-self: stretch;
  display: flex;
  gap: 2px;
  padding: 0 14px;
  overflow-x: auto;
  scrollbar-width: none;
  counter-reset: toc;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 14px, #000 calc(100% - 14px), transparent);
  mask-image: linear-gradient(90deg, transparent, #000 14px, #000 calc(100% - 14px), transparent);
}
.toc::-webkit-scrollbar { display: none; }
.toc a {
  counter-increment: toc;
  position: relative;
  flex: none;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 12px;
  font-size: 13.5px;
  color: var(--mute);
  white-space: nowrap;
  transition: color 0.2s;
}
.toc a::before {
  content: counter(toc, upper-roman);
  font: 600 11px/1 var(--display);
  letter-spacing: 0.04em;
  color: var(--faint);
  transition: color 0.2s;
}
.toc a::after,
.site-nav a::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}
.toc a:hover { color: var(--ink); }
.toc a.on { color: var(--gold-hi); }
.toc a.on::before { color: var(--gold); }
.toc a.on::after { transform: scaleX(1); }
.site-nav { display: flex; align-self: stretch; flex: none; margin-left: auto; }
.site-nav a {
  position: relative;
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 13.5px;
  letter-spacing: 0.08em;
  color: var(--mute);
  white-space: nowrap;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--gold-hi); }
.site-nav a[aria-current="page"]::after { transform: scaleX(1); }
/* 阅读进度贴在顶栏上沿，和下沿的目录下划线分开 */
.bar .progress {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}
.bar .progress i {
  display: block;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, rgba(217, 181, 108, 0), var(--gold) 70%, var(--gold-hi));
}
@media (max-width: 1480px) {
  .bar:has(.toc) .brand span { display: none; }
  .bar:has(.toc) .brand { padding-right: 0; }
}

/* ---------- 按钮 ----------
   不整块填金：深色玻璃底 + 细金边 + 底部一点金色微光，文字浅金；
   主按钮左右两端在边框上各点一颗小菱形 */
.actions { display: flex; flex-wrap: wrap; gap: 16px; }
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  height: 48px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.1em;
  white-space: nowrap;
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  transition: color 0.25s, border-color 0.25s, background-color 0.25s, box-shadow 0.25s, transform 0.25s var(--ease);
}
.btn .arr { transition: transform 0.25s var(--ease); }
.btn:hover { transform: translateY(-1px); }
.btn:hover .arr { transform: translateX(3px); }
.btn.primary {
  color: var(--gold-hi);
  border-color: rgba(217, 181, 108, 0.55);
  background: linear-gradient(180deg, rgba(217, 181, 108, 0.06), rgba(217, 181, 108, 0.16)) rgba(10, 13, 30, 0.55);
  box-shadow: inset 0 1px 0 rgba(255, 240, 205, 0.1), inset 0 -16px 24px -18px rgba(217, 181, 108, 0.55), 0 12px 32px -18px rgba(217, 181, 108, 0.45);
}
.btn.primary::before,
.btn.primary::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 7px;
  height: 7px;
  margin-top: -3.5px;
  transform: rotate(45deg);
  background: var(--gold);
  transition: background 0.25s;
}
.btn.primary::before { left: -4px; }
.btn.primary::after { right: -4px; }
.btn.primary:hover {
  color: #fff4d6;
  border-color: rgba(242, 223, 167, 0.85);
  background-color: rgba(22, 26, 52, 0.6);
  box-shadow: inset 0 1px 0 rgba(255, 240, 205, 0.14), inset 0 -18px 26px -18px rgba(217, 181, 108, 0.75), 0 14px 36px -16px rgba(217, 181, 108, 0.6);
}
.btn.primary:hover::before, .btn.primary:hover::after { background: var(--gold-hi); }
.btn.ghost {
  color: var(--mute);
  border-color: rgba(232, 214, 170, 0.16);
  background: rgba(255, 255, 255, 0.03);
}
.btn.ghost:hover { color: var(--ink); border-color: rgba(232, 214, 170, 0.36); background: rgba(255, 255, 255, 0.06); }

/* 图标按钮 */
.round-btn {
  flex: none;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 4px;
  border: 1px solid rgba(232, 214, 170, 0.18);
  background: rgba(10, 13, 30, 0.5);
  color: var(--mute);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.round-btn:hover { color: var(--gold-hi); border-color: rgba(217, 181, 108, 0.6); background: rgba(217, 181, 108, 0.08); }
.round-btn svg { width: 18px; height: 18px; }

/* ---------- 卷首 ---------- */
.hero { position: relative; padding: clamp(52px, 8vw, 108px) 0 clamp(24px, 4vw, 40px); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: clamp(36px, 5vw, 72px);
  align-items: center;
}
.hero-text { display: grid; gap: 24px; align-content: center; }

.vtitle { display: grid; gap: 16px; }
/* 版本号：细衬线数字，米白，不加金属渐变；「V」缩成金色小前缀（写成 <small>V</small>） */
.vnum, .ver, .update-item .v b {
  font-family: var(--latin);
  font-style: normal;
  font-variant-numeric: lining-nums;
  color: #f3ecdc;
}
.vnum small, .ver small, .update-item .v b small {
  font: 600 0.2em/1 var(--display);
  letter-spacing: 0.12em;
  color: var(--gold);
}
.vtitle .vnum {
  display: flex;
  align-items: flex-start;
  gap: 0.03em;
  font-size: clamp(88px, 12.4vw, 160px);
  font-weight: 300;
  line-height: 0.88;
  letter-spacing: 0.01em;
  text-shadow: 0 0 40px rgba(243, 236, 220, 0.12);
}
/* 小「V」的顶边对齐数字顶边 */
.vtitle .vnum small { margin-top: 1em; font-size: 0.17em; }
.vtitle .vsub { font: 700 clamp(22px, 2.8vw, 32px)/1.4 var(--serif); }
.page-title {
  font: 900 clamp(40px, 6.4vw, 76px)/1.12 var(--serif);
  letter-spacing: 0.03em;
  background: linear-gradient(180deg, #fcf8ee 30%, #ecd9a6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.deltas { display: flex; flex-wrap: wrap; gap: 8px; }
.delta {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 7px 14px;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-xs);
  background: rgba(255, 255, 255, 0.04);
  font-size: 13px;
  line-height: 1.5;
  color: var(--faint);
}
.delta b { color: var(--mute); font-weight: 500; }
.delta s { font: 500 15px/1 var(--latin); font-variant-numeric: lining-nums; text-decoration-color: rgba(255, 255, 255, 0.35); }
.delta i { font-style: normal; color: var(--gold); }
.delta .to { font: 600 17px/1 var(--latin); font-variant-numeric: lining-nums; color: var(--ink); }

/* 扇形海报：主图在前，两张小图从后面露出来；悬停时散开一点 */
.fan {
  position: relative;
  width: 100%;
  max-width: 540px;
  aspect-ratio: 1 / 0.94;
  justify-self: center;
}
.fan::before {
  content: "";
  position: absolute;
  inset: 4% 0 0;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(110, 120, 230, 0.32), rgba(217, 181, 108, 0.12) 55%, transparent);
  filter: blur(30px);
}
.fan .shot {
  position: absolute;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid rgba(232, 214, 170, 0.28);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, 0.95);
  transition: transform 0.6s var(--ease);
}
.fan .shot > img { width: 100%; height: 100%; object-fit: cover; border: 0; border-radius: 0; box-shadow: none; }
.fan .shot::after { display: none; }
.fan .f-main { z-index: 3; left: 17%; top: 0; width: 66%; aspect-ratio: 1600 / 1546; transform: rotate(-1.5deg); }
.fan .f-a { z-index: 2; left: 0; top: 46%; width: 40%; aspect-ratio: 1; transform: rotate(-9deg); }
.fan .f-b { z-index: 2; right: 0; top: 50%; width: 40%; aspect-ratio: 1; transform: rotate(8deg); }
.fan:hover .f-main { transform: rotate(0deg) translateY(-6px); }
.fan:hover .f-a { transform: rotate(-12deg) translate(-7%, 4%); }
.fan:hover .f-b { transform: rotate(11deg) translate(7%, 4%); }
.fan .label {
  position: absolute;
  left: 14px;
  bottom: 14px;
  display: grid;
  padding: 7px 14px 8px;
  border-radius: var(--r-xs);
  background: rgba(8, 11, 24, 0.66);
  border: 1px solid rgba(232, 214, 170, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font: 600 14px/1.4 var(--serif);
  color: var(--ink);
  text-align: left;
}
.fan .label small { font: 400 11.5px/1.5 var(--sans); color: var(--mute); }

/* 卷首亮点卡 */
.highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: clamp(40px, 5vw, 64px);
  counter-reset: hl;
}
.highlights a {
  counter-increment: hl;
  position: relative;
  display: grid;
  gap: 6px;
  padding: 22px 24px 24px;
  border-radius: var(--r);
  color: var(--ink);
  transition: border-color 0.3s, transform 0.3s var(--ease);
}
.highlights a::before { content: counter(hl, upper-roman); font: 600 13px/1 var(--display); letter-spacing: 0.08em; color: var(--gold); margin-bottom: 8px; }
.highlights a::after { content: "→"; position: absolute; top: 20px; right: 22px; color: var(--faint); transition: transform 0.3s var(--ease), color 0.3s; }
.highlights a:hover { color: var(--ink); border-color: var(--line-hi); transform: translateY(-2px); }
.highlights a:hover::after { transform: translateX(4px); color: var(--gold); }
.highlights b { font: 600 19px/1.4 var(--serif); }
.highlights span { font-size: 13.5px; line-height: 1.6; color: var(--faint); }

/* ---------- 提示 ---------- */
.note-card {
  position: relative;
  display: grid;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 32px);
  padding: clamp(24px, 3vw, 36px) clamp(24px, 3.4vw, 44px);
  border-radius: var(--r-lg);
  border-color: rgba(217, 181, 108, 0.24);
  background: radial-gradient(120% 120% at 0% 0%, rgba(217, 181, 108, 0.1), transparent 55%), var(--glass);
}
.note-card h2 { font-size: clamp(19px, 2.2vw, 23px); line-height: 1.45; }
.note-card h2::before { content: "✦"; margin-right: 12px; font-size: 0.8em; color: var(--gold); }
.note-card p { font-size: 15px; line-height: 1.85; max-width: 80ch; }

.callout {
  position: relative;
  padding: 18px 22px 18px 26px;
  border-radius: var(--r);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mute);
  overflow: hidden;
}
.callout::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(var(--tone), transparent);
}
.callout b { display: inline-block; margin-bottom: 2px; font: 600 16px/1.5 var(--serif); color: var(--ink); }

/* ---------- 章节 ---------- */
main { display: block; counter-reset: chapter; }
.chapter {
  counter-increment: chapter;
  position: relative;
  margin-top: clamp(64px, 9vw, 120px);
  padding-top: clamp(64px, 9vw, 120px);
}
/* 分隔：两段金线，中间一枚空心菱形，两侧各缀一颗小菱形 */
.chapter::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: min(1080px, calc(100% - 40px));
  height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--line-hi) 18%, var(--line-hi) calc(50% - 34px), transparent calc(50% - 34px), transparent calc(50% + 34px), var(--line-hi) calc(50% + 34px), var(--line-hi) 82%, transparent);
}
.chapter::after {
  content: "";
  position: absolute;
  top: -5px;
  left: calc(50% - 5.5px);
  width: 11px;
  height: 11px;
  transform: rotate(45deg);
  border: 1px solid var(--gold);
  box-shadow: 13px -13px 0 -3px rgba(217, 181, 108, 0.75), -13px 13px 0 -3px rgba(217, 181, 108, 0.75);
}
.chapter > .wrap { display: grid; gap: clamp(32px, 4vw, 48px); }

.chapter-head { display: grid; gap: 14px 64px; grid-template-columns: minmax(0, 1fr); }
.chapter-head:has(> .lead) { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: end; }
.chapter-head > .kicker,
.chapter-head > h2 { grid-column: 1; }
.chapter-head > .lead { grid-column: 2; grid-row: 1 / span 2; font-size: 16px; }
.chapter-head > .kicker { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 14px; }
/* 章节编号：罗马数字 */
.chapter-head > .kicker::before {
  content: counter(chapter, upper-roman);
  padding-right: 14px;
  border-right: 1px solid rgba(217, 181, 108, 0.4);
  font: 600 22px/1 var(--display);
  letter-spacing: 0.04em;
  color: var(--gold);
}

.source { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: var(--r-xs);
  border: 1px solid color-mix(in srgb, currentColor 40%, transparent);
  background: color-mix(in srgb, currentColor 10%, transparent);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.08em;
}
.tag.t-card { color: var(--gold); }
.tag.t-preset { color: var(--azure); }

/* ---------- 左右两栏 ---------- */
.row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px clamp(28px, 4vw, 56px);
  align-items: center;
}
.row:not(:has(> .shot)) { align-items: start; }
.row .col { display: grid; gap: 14px; align-content: start; }

/* ---------- 卡片 ---------- */
.grid-cards {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
}
.card {
  position: relative;
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 24px 26px;
  border-radius: var(--r);
  transition: border-color 0.3s;
}
.card:hover { border-color: var(--line-hi); }
.card h3 { font-size: 18px; }
.card p { font-size: 15px; line-height: 1.78; }
.card .source { margin-top: 2px; }

/* ---------- 要点列表 ---------- */
.list { display: grid; gap: 10px; list-style: none; }
.list li { position: relative; padding-left: 20px; font-size: 15px; line-height: 1.78; color: var(--mute); }
.list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.72em;
  width: 6px;
  height: 6px;
  transform: rotate(45deg);
  background: var(--tone);
  opacity: 0.8;
}
.list li b { color: var(--ink); font-weight: 600; }

/* ---------- 截图 ---------- */
.shot { position: relative; display: block; width: 100%; text-align: left; cursor: zoom-in; border-radius: var(--r); }
.shot > img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r);
  border: 1px solid var(--glass-line);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: var(--shadow);
  transition: border-color 0.3s, filter 0.3s;
}
.shot:hover > img { border-color: var(--line-hi); filter: brightness(1.06); }
.shot::after {
  content: "";
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  border-radius: var(--r-xs);
  border: 1px solid rgba(232, 214, 170, 0.22);
  background: rgba(8, 11, 24, 0.66) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ede7d9' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M15 3h6v6M9 21H3v-6M21 3l-7 7M3 21l7-7'/%3E%3C/svg%3E") center / 15px no-repeat;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.25s, transform 0.25s var(--ease);
  pointer-events: none;
}
.shot:hover::after, .shot:focus-visible::after { opacity: 1; transform: none; }

/* 图集：固定比例的画框，横图竖图都在框里居中，空出来的地方垫一层模糊的同图 */
.gallery { display: grid; gap: 12px; }
.gallery .main-shot {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 10;
  padding: clamp(10px, 2vw, 22px);
  border-radius: var(--r-lg);
  border: 1px solid var(--glass-line);
  background: #070a15;
  box-shadow: var(--shadow);
  overflow: hidden;
  isolation: isolate;
}
.gallery .main-shot > img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--r-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: none;
  box-shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.9);
}
.gallery .main-shot > img.bg {
  position: absolute;
  inset: -10%;
  z-index: -1;
  width: 120%;
  height: 120%;
  max-width: none;
  max-height: none;
  object-fit: cover;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  filter: blur(40px) saturate(1.3) brightness(0.45);
}
.gallery .main-shot > img.swap { animation: fade-in 0.4s var(--ease); }
.gallery .main-shot > .cap {
  position: absolute;
  left: 14px;
  bottom: 14px;
  margin: 0;
  padding: 4px 12px;
  border-radius: var(--r-xs);
  background: rgba(8, 11, 24, 0.66);
  color: var(--mute);
}
.gallery.ready .main-shot > .cap { display: none; }
.gallery-bar { display: flex; align-items: center; gap: 10px; min-height: 40px; }
.gallery-bar .g-cap { flex: 1; min-width: 0; font-size: 14px; line-height: 1.6; color: var(--mute); }
.gallery-bar .g-count {
  margin-right: 6px;
  font: 600 13px/1 var(--display);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  color: var(--faint);
  white-space: nowrap;
}

.thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(128px, 1fr));
  gap: 10px;
}
.thumb {
  display: grid;
  overflow: hidden;
  border-radius: var(--r-sm);
  border: 1px solid var(--glass-line);
  background: rgba(255, 255, 255, 0.035);
  transition: border-color 0.25s, transform 0.25s var(--ease), box-shadow 0.25s;
}
/* 缩略图一律 16:10 铺满，从顶部取景；尺寸整齐划一 */
.thumb img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top center;
  opacity: 0.68;
  transition: opacity 0.25s;
}
.thumb span {
  padding: 7px 8px 8px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--faint);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.thumb:hover { border-color: var(--line-hi); transform: translateY(-2px); }
.thumb:hover img { opacity: 1; }
.thumb[aria-current="true"] {
  border-color: color-mix(in srgb, var(--tone) 75%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--tone) 40%, transparent), 0 12px 30px -14px color-mix(in srgb, var(--tone) 70%, transparent);
}
.thumb[aria-current="true"] img { opacity: 1; }
.thumb[aria-current="true"] span { color: var(--tone); }

/* ---------- 以前 / 现在 对照 ---------- */
.compare-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 8px 8px 22px;
  border-radius: var(--r);
}
.compare-bar .cap { margin: 0; font-size: 14px; color: var(--mute); }
.seg {
  flex: none;
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border-radius: var(--r-sm);
  border: 1px solid var(--glass-line);
  background: rgba(5, 7, 15, 0.4);
}
.seg button {
  padding: 5px 14px;
  border-radius: var(--r-xs);
  font-size: 12.5px;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--faint);
  transition: color 0.2s, background 0.2s;
}
.seg button:hover { color: var(--ink); }
.seg button[aria-pressed="true"] { color: var(--gold-hi); background: rgba(217, 181, 108, 0.18); box-shadow: inset 0 0 0 1px rgba(217, 181, 108, 0.45); }
.seg button[data-mode="old"][aria-pressed="true"] { color: var(--ink); background: rgba(255, 255, 255, 0.1); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16); }

.compare-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
}
.compare {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  align-content: start;
  padding: 20px 22px 22px;
  border-radius: var(--r);
  transition: border-color 0.3s;
}
.compare > header { grid-row: 1; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.compare h3 { font-size: 17px; }
.compare .seg button { padding: 3px 10px; font-size: 12px; }
/* 两段文字叠在同一格里，切换时淡入淡出，卡片高度不跳 */
.compare > .old,
.compare > .new {
  grid-row: 2;
  grid-column: 1;
  font-size: 15px;
  line-height: 1.78;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
}
.compare > .old { color: var(--faint); }
.compare > .new { color: var(--ink); }
.compare > .source { grid-row: 3; }
.compare:not(.show-old) > .old,
.compare.show-old > .new { opacity: 0; transform: translateY(6px); visibility: hidden; }
.compare.show-old { border-style: dashed; border-color: rgba(232, 214, 170, 0.16); }
.compare.show-old > .old { color: var(--mute); }

/* ---------- 旧词 → 新词 ---------- */
.glossary {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(min(240px, 100%), 1fr));
}
.entry {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: 16px 18px;
  border-radius: var(--r-sm);
  border: 1px solid var(--glass-line);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.3s, transform 0.3s var(--ease);
}
.entry:hover { border-color: var(--line-hi); transform: translateY(-2px); }
.entry.wide { grid-column: 1 / -1; }
.swap { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; }
.swap s { font: 500 15px/1.5 var(--serif); color: var(--faint); text-decoration-color: rgba(220, 120, 110, 0.6); }
.swap .arrow { color: var(--gold); }
.swap strong { font: 600 17px/1.5 var(--serif); color: var(--ink); }
.entry small { font-size: 12.5px; line-height: 1.7; color: var(--faint); }
.entry small em { font-style: normal; font-weight: 600; color: var(--gold); }

/* ---------- 代码 ----------
   写给二创作者的示例。正文里的 code 是行内小块；figure.code 是整段代码，figcaption 写语言和用在哪。
   高亮手写：.c 注释、.s 字符串、.k 关键字与布尔值 */
:where(p, li, h3, .callout) code {
  padding: 1px 6px;
  border-radius: var(--r-xs);
  border: 1px solid var(--glass-line);
  background: rgba(255, 255, 255, 0.05);
  font: 500 0.88em/1.5 var(--mono);
  color: var(--gold-hi);
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.code {
  margin: 0;
  min-width: 0;
  border-radius: var(--r);
  border: 1px solid var(--glass-line);
  background: rgba(6, 8, 20, 0.6);
  box-shadow: var(--glass-hl), var(--shadow);
  overflow: hidden;
}
.code figcaption {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--line);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--faint);
}
.code figcaption b { font: italic 500 17px/1 var(--latin); letter-spacing: 0.03em; color: var(--gold); }
.code pre {
  margin: 0;
  padding: 16px 18px 18px;
  overflow-x: auto;
  font: 13.5px/1.75 var(--mono);
  color: var(--ink);
  tab-size: 2;
  scrollbar-width: thin;
  scrollbar-color: rgba(217, 181, 108, 0.3) transparent;
}
.code .c { color: var(--faint); }
.code .s { color: #e3c88e; }
.code .k { color: var(--azure); }

/* ---------- 角色选择（标签页） ---------- */
.tabs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
  gap: 12px;
}
.tab {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px 14px 14px;
  border-radius: var(--r);
  text-align: left;
  transition: border-color 0.3s, transform 0.3s var(--ease), box-shadow 0.3s;
}
/* 头像是一枚圆章 */
.tab img {
  flex: none;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  filter: grayscale(0.7) brightness(0.8);
  box-shadow: 0 0 0 1px rgba(232, 214, 170, 0.25), 0 0 0 4px rgba(8, 11, 24, 0.6), 0 0 0 5px rgba(232, 214, 170, 0.12);
  transition: filter 0.3s, box-shadow 0.3s;
}
.tab > span { display: grid; min-width: 0; }
.tab b { font: 600 19px/1.35 var(--serif); color: var(--mute); transition: color 0.3s; }
.tab em { font: normal 500 13px/1.5 var(--serif); letter-spacing: 0.08em; color: var(--faint); transition: color 0.3s; }
.tab small { font-size: 12px; line-height: 1.6; color: var(--faint); }
.tab:hover { border-color: var(--line-hi); transform: translateY(-2px); }
.tab[aria-selected="true"],
.tab[aria-selected="true"]:hover {
  border-color: color-mix(in srgb, var(--tone) 55%, transparent);
  background: linear-gradient(150deg, color-mix(in srgb, var(--tone) 20%, transparent), rgba(255, 255, 255, 0.03) 70%);
  box-shadow: var(--glass-hl), 0 24px 50px -26px color-mix(in srgb, var(--tone) 80%, transparent);
}
.tab[aria-selected="true"] img {
  filter: none;
  box-shadow: 0 0 0 1px var(--tone), 0 0 0 4px rgba(8, 11, 24, 0.6), 0 0 0 5px color-mix(in srgb, var(--tone) 45%, transparent), 0 0 22px color-mix(in srgb, var(--tone) 55%, transparent);
}
.tab[aria-selected="true"] b { color: var(--ink); }
.tab[aria-selected="true"] em { color: var(--tone); }

.panel {
  position: relative;
  display: grid;
  gap: 30px;
  margin-top: 16px;
  padding: clamp(24px, 3.6vw, 44px);
  border-radius: var(--r-lg);
  border: 1px solid color-mix(in srgb, var(--tone) 24%, transparent);
  background:
    radial-gradient(80% 50% at 50% 0%, color-mix(in srgb, var(--tone) 10%, transparent), transparent 70%),
    rgba(255, 255, 255, 0.015);
}
.panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--tone), transparent);
}
.panel::after { --c: color-mix(in srgb, var(--tone) 60%, transparent); }
.panel:not([hidden]) { animation: rise-in 0.5s var(--ease); }

/* ---------- 数字 ---------- */
.stats { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.stat { padding: 14px 16px; border-radius: var(--r-sm); border: 1px solid var(--glass-line); background: rgba(255, 255, 255, 0.03); }
.stat span { display: block; font-size: 12px; letter-spacing: 0.08em; color: var(--faint); }
.stat b { display: block; margin-top: 6px; font: 600 24px/1.25 var(--display); letter-spacing: 0.02em; color: var(--gold-hi); }
.card .stats { grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 8px; }
.card .stat { padding: 10px 12px; }
.card .stat b { font-size: 20px; }

/* ---------- 首页 ---------- */
.home-hero { padding: clamp(52px, 9vw, 124px) 0 clamp(24px, 4vw, 40px); }
.display { margin: 0; font: 900 clamp(58px, 9.4vw, 116px)/1.04 var(--serif); letter-spacing: 0.03em; }
.display .l1 {
  display: block;
  background: linear-gradient(180deg, #fdf9ef 25%, #ead7a4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.display .l2 {
  display: block;
  margin-top: 0.22em;
  font-size: 0.42em;
  font-weight: 700;
  letter-spacing: 0.46em;
  background: var(--gold-leaf);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline { font: 500 13px/1.6 var(--display); letter-spacing: 0.32em; text-transform: uppercase; color: var(--faint); }

/* 最新版本卡：背后一圈星环 */
.feature { position: relative; isolation: isolate; }
.feature::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: 50%;
  top: 46%;
  width: 116%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(217, 181, 108, 0.22);
  outline: 1px dashed rgba(217, 181, 108, 0.16);
  outline-offset: 22px;
  background: radial-gradient(circle, rgba(100, 120, 230, 0.24), rgba(217, 181, 108, 0.06) 46%, transparent 68%);
}
.latest {
  position: relative;
  display: grid;
  border-radius: var(--r-lg);
  overflow: hidden;
  color: var(--ink);
  transform: perspective(1000px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform 0.6s var(--ease), border-color 0.3s;
}
.latest:hover { color: var(--ink); border-color: var(--line-hi); }
.latest .cover { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.latest .cover img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; transition: transform 0.9s var(--ease); }
.latest:hover .cover img { transform: scale(1.04); }
.latest .cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(10, 13, 30, 0.92)); }
.latest .badge {
  position: absolute;
  z-index: 2;
  top: 16px;
  left: 16px;
  padding: 5px 12px;
  border-radius: var(--r-xs);
  border: 1px solid rgba(232, 214, 170, 0.22);
  background: rgba(8, 11, 24, 0.62);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink);
}
.latest .body { position: relative; display: grid; gap: 10px; margin-top: -40px; padding: 0 30px 30px; }
.latest .ver {
  display: flex;
  align-items: flex-start;
  gap: 0.1em;
  font-size: 64px;
  font-weight: 400;
  line-height: 0.95;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.6);
}
.latest .ver small { margin-top: 0.5em; font-size: 0.2em; }
.latest.no-cover .body { margin-top: 0; padding-top: 30px; }
.latest.no-cover .badge { position: static; justify-self: start; }
.latest h2 { font-size: clamp(21px, 2.2vw, 25px); }
.latest p { font-size: 14.5px; line-height: 1.75; color: var(--mute); }
.latest .more { margin-top: 2px; font-size: 14px; letter-spacing: 0.06em; color: var(--gold); }
.latest .tags { display: flex; flex-wrap: wrap; gap: 6px; }

.sec { margin-top: clamp(72px, 9vw, 120px); }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.sec-head h2 { font-size: clamp(24px, 3vw, 32px); }
.sec-head a { font-size: 14px; letter-spacing: 0.06em; white-space: nowrap; }

/* 版本时间线：一条金线串起每一版，节点是菱形 */
.update-list { position: relative; display: grid; gap: 16px; padding-left: 40px; }
.update-list::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 30px;
  bottom: 30px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(217, 181, 108, 0.25) 60%, rgba(217, 181, 108, 0.05));
}
.update-item {
  position: relative;
  display: grid;
  grid-template-columns: 136px minmax(0, 1fr) 210px;
  gap: 28px;
  align-items: center;
  padding: 20px 20px 20px 26px;
  border-radius: var(--r);
  color: var(--ink);
  transition: border-color 0.3s, transform 0.3s var(--ease);
}
.update-item::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 50%;
  width: 11px;
  height: 11px;
  margin-top: -5.5px;
  transform: rotate(45deg);
  border: 1px solid var(--gold);
  background: #0b0e20;
}
.update-item:first-child::before { background: var(--gold); box-shadow: 0 0 14px rgba(217, 181, 108, 0.8); }
.update-item:hover { color: var(--ink); border-color: var(--line-hi); transform: translateX(4px); }
.update-item .v { display: grid; gap: 6px; }
.update-item .v b { display: flex; align-items: flex-start; gap: 0.12em; font-size: 38px; font-weight: 500; line-height: 1; }
.update-item .v b small { margin-top: 0.42em; font-size: 0.26em; }
.update-item .v span { font-size: 12.5px; letter-spacing: 0.08em; font-variant-numeric: tabular-nums; color: var(--faint); }
.update-item .info { display: grid; gap: 6px; }
.update-item h3 { font-size: 19px; }
.update-item p { font-size: 14px; line-height: 1.7; color: var(--faint); }
.update-item .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.update-item .thumb-box { aspect-ratio: 16 / 10; border-radius: var(--r-sm); overflow: hidden; border: 1px solid var(--glass-line); background: rgba(255, 255, 255, 0.04); }
.update-item .thumb-box img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.update-item:hover .thumb-box img { transform: scale(1.05); }
.update-item.no-thumb { grid-template-columns: 136px minmax(0, 1fr); }

.about { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 28px 64px; align-items: start; }
.about-text { display: grid; gap: 16px; }
.about-text p { font-size: 15px; line-height: 1.85; color: var(--mute); }

/* 开发组名单：名字签条 + 特别鸣谢 */
.team { display: grid; gap: 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; }
.chips li {
  padding: 6px 14px;
  border-radius: var(--r-xs);
  border: 1px solid var(--glass-line);
  background: rgba(255, 255, 255, 0.04);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
  transition: border-color 0.25s, background 0.25s, color 0.25s;
}
.chips li:hover { border-color: rgba(217, 181, 108, 0.45); background: rgba(217, 181, 108, 0.1); color: var(--gold-hi); }
.team .thanks { padding-top: 14px; border-top: 1px solid var(--line); font-size: 14.5px; line-height: 1.8; color: var(--mute); }
.team .thanks span { margin-right: 14px; font-size: 12.5px; letter-spacing: 0.2em; color: var(--gold); }

/* ---------- 页脚 ---------- */
footer {
  position: relative;
  margin-top: clamp(88px, 11vw, 150px);
  padding: 48px 0 calc(56px + env(safe-area-inset-bottom, 0px));
  font-size: 13px;
  line-height: 1.9;
  color: var(--faint);
}
footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(217, 181, 108, 0.35) 50%, transparent);
}
footer .wrap { display: grid; justify-items: center; gap: 10px; text-align: center; }
footer .mark { width: 40px; height: 40px; border-radius: 9px; opacity: 0.9; }
footer .name { font: 600 15px/1.6 var(--serif); letter-spacing: 0.16em; color: var(--mute); }
footer p { max-width: 72ch; }
footer a { color: var(--mute); }

/* ---------- 放大查看 ---------- */
.viewer {
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
}
.viewer::backdrop {
  background: rgba(4, 6, 14, 0.88);
  backdrop-filter: blur(18px) saturate(120%);
  -webkit-backdrop-filter: blur(18px) saturate(120%);
}
.viewer-inner {
  position: fixed;
  inset: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 14px;
  padding: max(14px, env(safe-area-inset-top, 0px)) max(16px, env(safe-area-inset-right, 0px)) max(16px, env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px));
}
.viewer[open] .viewer-inner { animation: fade-in 0.3s var(--ease); }
.viewer-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.viewer-cap { font-size: 14px; line-height: 1.6; color: var(--mute); }
.viewer-img { display: grid; place-items: center; min-height: 0; overflow: hidden; touch-action: pan-y; }
/* 任何比例的图都约束在视口里，竖图不会撑满整屏 */
.viewer-img img {
  display: block;
  width: auto;
  height: auto;
  max-width: min(96vw, 1600px);
  max-height: calc(100vh - 150px);
  max-height: calc(100dvh - 150px);
  object-fit: contain;
  border-radius: var(--r-sm);
  border: 1px solid var(--glass-line);
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, 0.9);
}
.viewer-img img.swap { animation: fade-in 0.3s var(--ease); }
.viewer-nav { display: flex; align-items: center; justify-content: center; gap: 14px; }
.viewer-count { min-width: 64px; font: 600 13px/1 var(--display); letter-spacing: 0.06em; font-variant-numeric: tabular-nums; color: var(--faint); text-align: center; }

/* ---------- 动效 ---------- */
@keyframes fade-in { from { opacity: 0; } }
@keyframes rise-in { from { opacity: 0; transform: translateY(10px); } }
/* 滚动到时淡入；只作用于脚本标记过的、初始在屏幕外的元素 */
.rv { opacity: 0; transform: translateY(22px); }
.rv.in {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--d, 0ms);
}

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .fan { max-width: 440px; }
  .highlights { grid-template-columns: minmax(0, 1fr); }
  .chapter-head:has(> .lead) { grid-template-columns: minmax(0, 1fr); }
  .chapter-head > .lead { grid-column: auto; grid-row: auto; }
  .row { grid-template-columns: minmax(0, 1fr); }
  .about { grid-template-columns: minmax(0, 1fr); }
  .update-item, .update-item.no-thumb { grid-template-columns: 110px minmax(0, 1fr); gap: 20px; }
  .update-item .thumb-box { display: none; }
  .feature { max-width: 520px; }
}

@media (max-width: 640px) {
  :root { --bar-h: 56px; }
  body { font-size: 15.5px; }
  body::after { top: -12vh; right: -70vw; width: 170vw; opacity: 0.1; }
  .bar { gap: 4px; }
  .bar:has(.toc) .brand span { display: none; }
  .bar:has(.toc) .brand { padding-right: 0; }
  .brand img { width: 32px; height: 32px; }
  .toc { padding: 0 6px; }
  .toc a { padding: 0 9px; font-size: 13px; }
  .toc a::after { left: 9px; right: 9px; }
  .site-nav a { padding: 0 8px; font-size: 13px; }
  .lead { font-size: 16px; }
  .btn { height: 48px; padding: 0 22px; }
  .chapter-head > .kicker::before { font-size: 19px; }
  .card { padding: 20px; }
  .compare { padding: 18px 18px 20px; }
  .compare-bar { flex-wrap: wrap; padding: 12px 12px 12px 18px; }
  .gallery .main-shot { aspect-ratio: 1 / 1; padding: 10px; }
  .gallery-bar .g-cap { font-size: 13px; }
  .gallery-bar .round-btn { display: none; }
  .thumbs {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 40%;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    margin: 0 -20px;
    padding: 2px 20px 4px;
  }
  .thumbs::-webkit-scrollbar { display: none; }
  .thumb { scroll-snap-align: start; }
  .code pre { padding: 14px; font-size: 12.5px; }
  .code figcaption { padding: 10px 14px; }
  .glossary { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .entry { padding: 14px; }
  .swap strong { font-size: 16px; }
  .tabs { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .tab { flex-direction: column; gap: 10px; padding: 16px 6px 12px; text-align: center; }
  .tab > span { justify-items: center; }
  .tab img { width: 46px; height: 46px; }
  .tab b { font-size: 15.5px; }
  .tab em { font-size: 11.5px; letter-spacing: 0.04em; }
  .tab small { display: none; }
  .panel { padding: 22px 16px; margin-left: -6px; margin-right: -6px; gap: 24px; }
  .update-list { padding-left: 28px; }
  .update-list::before { left: 6px; }
  .update-item::before { left: -27px; }
  .update-item, .update-item.no-thumb { grid-template-columns: minmax(0, 1fr); gap: 12px; padding: 18px; }
  .update-item .v { display: flex; align-items: baseline; gap: 12px; }
  .update-item .v b { font-size: 32px; }
  .latest .body { padding: 0 22px 24px; }
  .latest .ver { font-size: 52px; }
  .display .l2 { letter-spacing: 0.3em; }
  .tagline { font-size: 11.5px; letter-spacing: 0.22em; }
  .viewer-inner { padding: max(10px, env(safe-area-inset-top, 0px)) 10px max(12px, env(safe-area-inset-bottom, 0px)); }
  .viewer-img img { max-width: 100%; max-height: calc(100dvh - 130px); }
  /* 手机上卡片不做背景模糊，滚动更顺 */
  .card, .compare, .update-item, .highlights a, .tab, .callout, .compare-bar { backdrop-filter: none; -webkit-backdrop-filter: none; background-color: rgba(18, 22, 46, 0.5); }
}

@media (hover: none) {
  .shot::after { opacity: 0.85; transform: none; }
  .fan .shot::after { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

@media print {
  body::before, body::after, .topbar, .gallery-bar, .seg { display: none; }
  .rv { opacity: 1; transform: none; }
}