/* ══════════════════════════════════════════════════════════════
   视界笔记 · 视觉系统
   近单色 / 大面积留白 / 克制的动效
   ══════════════════════════════════════════════════════════════ */

:root {
  /* 表面 */
  --bg:        #ffffff;
  --bg-alt:    #f5f5f7;
  --bg-sunk:   #fafafc;
  --bg-blur:   rgba(255, 255, 255, .72);

  /* 文字 */
  --ink:       #1d1d1f;
  --ink-2:     #424245;
  --muted:     #6e6e73;
  --faint:     #86868b;
  --ghost:     #a1a1a6;

  /* 线 */
  --line:      #d2d2d7;
  --line-2:    #e8e8ed;

  /* 强调 */
  --accent:      #0071e3;
  --accent-soft: #e8f2fd;

  /* 主题色（低饱和，仅用作圆点与细线） */
  --c-ir:     #6E7F94;
  --c-tech:   #4F8A8B;
  --c-env:    #6E9268;
  --c-hum:    #B08A6E;
  --c-soc:    #8E7FA8;
  --c-eco:    #AE9260;
  --c-health: #A8788E;
  --c-edu:    #7E8A6A;

  /* 圆角 */
  --r-s: 12px;
  --r-m: 18px;
  --r-l: 28px;
  --r-xl: 40px;

  /* 阴影（极克制） */
  --sh-1: 0 1px 3px rgba(0, 0, 0, .04), 0 4px 14px rgba(0, 0, 0, .04);
  --sh-2: 0 2px 8px rgba(0, 0, 0, .06), 0 14px 40px rgba(0, 0, 0, .07);
  --sh-3: 0 10px 30px rgba(0, 0, 0, .10), 0 40px 90px rgba(0, 0, 0, .12);

  /* 动效 */
  --ease: cubic-bezier(.32, .72, 0, 1);
  --ease-out: cubic-bezier(.25, .46, .45, .94);
  --t-fast: 200ms;
  --t-mid: 380ms;
  --t-slow: 560ms;

  --wrap: 1200px;
  --wrap-text: 700px;
  --nav-h: 48px;
}

html[data-theme="dark"] {
  --bg:        #000000;
  --bg-alt:    #1d1d1f;
  --bg-sunk:   #0a0a0b;
  --bg-blur:   rgba(0, 0, 0, .72);

  --ink:       #f5f5f7;
  --ink-2:     #d2d2d7;
  --muted:     #a1a1a6;
  --faint:     #86868b;
  --ghost:     #6e6e73;

  --line:      #424245;
  --line-2:    #2d2d2f;

  --accent:      #2997ff;
  --accent-soft: #10243a;

  --c-ir:     #93A5B8;
  --c-tech:   #79B0B1;
  --c-env:    #93B98C;
  --c-hum:    #CBA98F;
  --c-soc:    #B0A2C4;
  --c-eco:    #C9AF80;
  --c-health: #C79BAE;
  --c-edu:    #A2AE8E;

  --sh-1: 0 1px 3px rgba(0,0,0,.5);
  --sh-2: 0 2px 10px rgba(0,0,0,.6), 0 16px 44px rgba(0,0,0,.5);
  --sh-3: 0 12px 40px rgba(0,0,0,.7);
}

/* ── 基础 ─────────────────────────────────────────────── */

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

html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
               "Helvetica Neue", "Segoe UI Variable Display", "Segoe UI",
               "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC",
               "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: -.006em;
  font-feature-settings: "kern" 1, "tnum" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--t-mid) var(--ease-out), color var(--t-mid) var(--ease-out);
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -.022em; line-height: 1.16; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; letter-spacing: inherit; }
input { font: inherit; color: inherit; letter-spacing: inherit; }
svg { width: 100%; height: 100%; display: block; }
::selection { background: var(--accent-soft); color: var(--ink); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 99px; border: 3.5px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--ghost); }

/* ── 布局基元 ─────────────────────────────────────────── */

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 32px; }
.band { padding: 108px 0; }
.band--alt { background: var(--bg-alt); }
.band--tight { padding: 72px 0; }

.kicker {
  font-size: 12px; font-weight: 500; letter-spacing: .08em;
  color: var(--faint); text-transform: uppercase; margin-bottom: 28px;
}

@media (max-width: 860px) {
  .band { padding: 72px 0; }
  .wrap { padding: 0 22px; }
}
@media (max-width: 620px) {
  .band { padding: 56px 0; }
  .wrap { padding: 0 20px; }
}

/* ── 全局导航 ─────────────────────────────────────────── */

.gnav {
  position: sticky; top: 0; z-index: 80;
  height: var(--nav-h);
  background: var(--bg-blur);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line-2);
}
.gnav__inner {
  max-width: var(--wrap); margin: 0 auto; height: 100%;
  padding: 0 32px; display: flex; align-items: center; gap: 8px;
}
.gnav__brand {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 15px; font-weight: 600; letter-spacing: -.01em;
  margin-right: 22px; white-space: nowrap;
  transition: opacity var(--t-fast) var(--ease-out);
}
.gnav__brand:hover { opacity: .65; }
.gnav__mark { width: 17px; height: 17px; opacity: .85; }

.gnav__links { position: relative; display: flex; align-items: center; gap: 4px; margin-right: auto; }
.gnav__pill {
  position: absolute; left: 0; top: 50%; height: 28px; width: 0;
  margin-top: -14px; border-radius: 99px;
  background: var(--bg-alt);
  opacity: 0; pointer-events: none;
  transition: transform 560ms var(--ease), width 560ms var(--ease), opacity 260ms var(--ease-out);
}
html[data-theme="dark"] .gnav__pill { background: #1d1d1f; }
.gnav__pill.is-on { opacity: 1; }
.gnav__links a {
  position: relative;
  padding: 5px 12px; border-radius: 99px;
  font-size: 12.5px; color: var(--muted); white-space: nowrap;
  transition: color var(--t-fast) var(--ease-out), background-color var(--t-fast) var(--ease-out);
}
.gnav__links a:hover { color: var(--ink); background: var(--bg-alt); }
html[data-theme="dark"] .gnav__links a:hover { background: #1d1d1f; }
.gnav__links a.is-active { color: var(--ink); font-weight: 500; background: none; }
.gnav__links a { position: relative; z-index: 1; transition: transform 420ms var(--ease), color var(--t-fast) var(--ease-out); }
.gnav__badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 16px; height: 16px; padding: 0 4px; margin-left: 5px;
  font-size: 10px; font-weight: 500; font-variant-numeric: tabular-nums;
  background: var(--ink); color: var(--bg); border-radius: 99px;
  transform: translateY(-1px);
}

.gnav__tools { display: flex; align-items: center; gap: 2px; }
.gnav__btn {
  width: 32px; height: 32px; padding: 7px; border-radius: 99px;
  color: var(--muted); display: grid; place-items: center;
  transition: color var(--t-fast) var(--ease-out), background-color var(--t-fast) var(--ease-out), transform var(--t-fast);
}
.gnav__btn:hover { color: var(--ink); background: var(--bg-alt); }
html[data-theme="dark"] .gnav__btn:hover { background: #1d1d1f; }
.gnav__btn:active { transform: scale(.9); }

html[data-mode="light"] .ico-moon,
html[data-mode="light"] .ico-auto,
html[data-mode="dark"] .ico-sun,
html[data-mode="dark"] .ico-auto,
html[data-mode="auto"] .ico-sun,
html[data-mode="auto"] .ico-moon { display: none; }
#themeToggle svg { transition: transform 520ms var(--ease); }
#themeToggle:active svg { transform: rotate(140deg) scale(.86); }

@media (max-width: 860px) {
  .gnav__links { display: none; }
  .gnav__inner { padding: 0 20px; justify-content: space-between; }
}

/* ── 搜索层 ───────────────────────────────────────────── */

.searchlayer {
  position: fixed; inset: 0; z-index: 120;
  background: var(--bg-blur);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  display: flex; justify-content: center; padding-top: 16vh;
  animation: fade var(--t-mid) var(--ease-out) both;
}
.searchlayer__box {
  display: flex; align-items: center; gap: 14px;
  width: min(640px, calc(100vw - 44px)); height: 62px; padding: 0 22px;
  background: var(--bg); border: 1px solid var(--line-2);
  border-radius: var(--r-m); box-shadow: var(--sh-2);
  animation: rise 420ms var(--ease) both;
}
.searchlayer__box svg { width: 19px; height: 19px; color: var(--ghost); flex: none; }
.searchlayer__box input { flex: 1; height: 100%; border: 0; background: none; outline: none; font-size: 17px; }
.searchlayer__box input::placeholder { color: var(--ghost); }
.searchlayer__box kbd {
  font-size: 11px; letter-spacing: .04em; color: var(--ghost);
  border: 1px solid var(--line-2); border-radius: 6px; padding: 3px 7px;
}

/* ── 通用动效 ─────────────────────────────────────────── */

@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes viewIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.view { animation: viewIn 520ms var(--ease) both; }

/* ── 页头 / 首屏 ──────────────────────────────────────── */

.hero {
  position: relative;
  max-width: var(--wrap); margin: 0 auto;
  padding: 116px 32px 88px;
  text-align: center;
}
.hero > * { position: relative; z-index: 1; will-change: transform, opacity; }
.hero::before {
  content: ""; position: absolute; inset: -60px -10% 0; z-index: 0;
  background: radial-gradient(480px circle at var(--hx, 50%) var(--hy, 42%),
    color-mix(in srgb, var(--accent) 11%, transparent), transparent 62%);
  opacity: 0; transition: opacity 800ms var(--ease-out); pointer-events: none;
}
.hero.is-glow::before { opacity: 1; }
.hero__eyebrow {
  font-size: 13px; font-weight: 500; color: var(--faint);
  letter-spacing: .02em; margin-bottom: 20px;
}
.hero__title {
  font-size: clamp(42px, 6.6vw, 80px);
  font-weight: 600; letter-spacing: -.035em; line-height: 1.04;
  margin-bottom: 24px;
}
.hero__lede {
  max-width: 620px; margin: 0 auto;
  font-size: clamp(18px, 2vw, 21px); line-height: 1.6;
  color: var(--muted); letter-spacing: -.01em;
}
.hero__stats {
  display: flex; justify-content: center; flex-wrap: wrap;
  gap: 10px 44px; margin: 46px auto 0;
}
.hero .quietbtn { margin-top: 40px; }
.modenote { margin-top: 26px; font-size: 12.5px; color: var(--faint); letter-spacing: .01em; }

.pagehead {
  max-width: var(--wrap); margin: 0 auto;
  padding: 100px 32px 44px; text-align: center;
}
.pagehead h1 {
  font-size: clamp(34px, 4.6vw, 56px);
  letter-spacing: -.03em; margin-bottom: 18px;
}
.pagehead p {
  max-width: 600px; margin: 0 auto;
  font-size: clamp(16px, 1.7vw, 19px); line-height: 1.6; color: var(--muted);
}

@media (max-width: 860px) {
  .hero { padding: 72px 22px 56px; }
  .hero__stats { gap: 8px 30px; margin-top: 34px; }
  .pagehead { padding: 64px 22px 34px; }
}
@media (max-width: 620px) {
  .hero { padding: 56px 20px 44px; }
  .pagehead { padding: 52px 20px 28px; }
}

/* 统计 */
.stats { display: flex; flex-wrap: wrap; gap: 10px 40px; }
.stat { display: flex; flex-direction: column; gap: 2px; }
.stat__num {
  font-size: 24px; font-weight: 500; letter-spacing: -.02em;
  font-variant-numeric: tabular-nums; line-height: 1.2;
}
.stat__num small { font-size: 13px; font-weight: 400; color: var(--faint); margin-left: 3px; }
.stat__label { font-size: 12px; color: var(--faint); letter-spacing: .01em; }

/* 安静按钮 */
.quietbtn {
  display: inline-flex; align-items: center; gap: 7px;
  height: 34px; padding: 0 16px; border-radius: 99px;
  font-size: 13.5px; color: var(--ink-2);
  border: 1px solid var(--line);
  background: transparent;
  transition: all var(--t-fast) var(--ease-out);
}
.quietbtn svg { width: 14px; height: 14px; }
.quietbtn:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.quietbtn:active { transform: scale(.97); }
.quietbtn--wide { width: 100%; justify-content: center; height: 44px; }
.quietbtn.is-on { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.quietbtn.is-on svg { fill: currentColor; }
.reader__dock .quietbtn { background: var(--bg); }
.quietbtn.is-busy svg { animation: spin 900ms linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ══ 素材卡片（tile） ══════════════════════════════════ */

.tiles {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  perspective: 1400px;           /* 让卡片的入场与倾斜有真实纵深 */
}

.tile {
  --tag: var(--faint);
  position: relative;
  display: flex; flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--line-2);
  border-radius: var(--r-l);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--t-mid) var(--ease), box-shadow var(--t-mid) var(--ease),
              border-color var(--t-mid) var(--ease-out);
  animation: tileIn 620ms var(--ease) both;
  animation-delay: var(--delay, 0ms);
}
.band--alt .tile { background: var(--bg); }
.lead__acts { display: flex; align-items: center; gap: 4px; }
@keyframes tileIn {
  from { opacity: 0; transform: translateY(26px) rotateX(9deg) scale(.982); }
  to { opacity: 1; transform: none; }
}
@media (hover: hover) and (pointer: fine) {
  .tile:hover { transform: translateY(-3px); box-shadow: var(--sh-2); border-color: transparent; }
}
.tile:active { transform: translateY(-1px) scale(.995); }

/* 鼠标跟随的内光晕与外发光描边（倾斜时尤其明显） */
.tile > * { position: relative; z-index: 1; }
.tile::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: 0;
  background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 0%),
    color-mix(in srgb, var(--tag) 11%, transparent), transparent 66%);
  opacity: 0; transition: opacity 460ms var(--ease-out); pointer-events: none;
}
.tile:hover::after { opacity: 1; }
.tile::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: 2;
  padding: 1px;
  background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 0%),
    color-mix(in srgb, var(--tag) 78%, transparent), transparent 62%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  opacity: 0; transition: opacity 460ms var(--ease-out); pointer-events: none;
}
@media (hover: hover) and (pointer: fine) {
  .tile:hover::before { opacity: 1; }
}
.tile.is-tilt { transition: transform 340ms var(--ease), box-shadow var(--t-mid) var(--ease), border-color var(--t-mid) var(--ease-out); }

.tile__head {
  display: flex; align-items: center; gap: 9px;
  padding: 24px 28px 0;
}
.tile__dot {
  width: 7px; height: 7px; border-radius: 99px;
  background: var(--tag); flex: none;
  transition: transform var(--t-mid) var(--ease);
}
.tile:hover .tile__dot { transform: scale(1.35); }
.tile__cat { font-size: 12px; font-weight: 500; color: var(--ink-2); letter-spacing: .01em; }
.tile__src {
  margin-left: auto; font-size: 12px; color: var(--faint);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 52%;
}

/* 侧滑视窗 */
.tile__view { overflow: hidden; }
.tile__track {
  display: flex; width: 200%;
  transform: translate3d(0, 0, 0);
  transition: transform var(--t-slow) var(--ease);
  will-change: transform;
}
.tile.is-drag .tile__track { transition: none; }
.tile.is-slid .tile__track { transform: translate3d(-50%, 0, 0); }
@media (hover: hover) and (pointer: fine) {
  .tile:not(.is-slid):hover .tile__track { transform: translate3d(-6%, 0, 0); }
  .tile.is-slid:hover .tile__track { transform: translate3d(-50%, 0, 0); }
}
.tile__pane { width: 50%; flex: none; padding: 16px 28px 0; }

.tile__title {
  font-size: 21px; font-weight: 600; letter-spacing: -.022em; line-height: 1.32;
  margin-bottom: 12px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.tile__digest {
  font-size: 15px; line-height: 1.6; color: var(--muted);
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.tile__keys { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.keychip {
  font-size: 11.5px; color: var(--muted);
  padding: 3px 10px; border-radius: 99px;
  border: 1px solid var(--line-2);
  transition: color var(--t-fast), border-color var(--t-fast);
}
.tile__angle {
  margin-top: 16px; padding-left: 12px;
  border-left: 2px solid color-mix(in srgb, var(--tag) 40%, transparent);
  font-size: 13.5px; line-height: 1.6; color: var(--faint);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.tile__label {
  font-size: 11px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ghost); margin-bottom: 16px;
}
.tile__points li {
  position: relative; padding-left: 18px; margin-bottom: 11px;
  font-size: 14px; line-height: 1.6; color: var(--ink-2);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.tile__points li::before {
  content: ""; position: absolute; left: 1px; top: 9px;
  width: 5px; height: 5px; border-radius: 99px; background: var(--tag); opacity: .5;
}

.tile__foot {
  display: flex; align-items: center; gap: 4px;
  margin-top: auto; padding: 22px 28px 20px;
}
.tile__hint {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12.5px; color: var(--faint);
  transition: color var(--t-fast) var(--ease-out);
}
.tile__hint svg { width: 12px; height: 12px; transition: transform var(--t-mid) var(--ease); }
.tile__hint:hover { color: var(--ink); }
.tile.is-slid .tile__hint svg { transform: rotate(180deg); }
.tile__acts { margin-left: auto; display: flex; align-items: center; gap: 2px; }
.tile__icobtn {
  width: 30px; height: 30px; padding: 7px; border-radius: 99px;
  color: var(--faint); display: grid; place-items: center;
  transition: color var(--t-fast), background-color var(--t-fast), transform var(--t-fast);
}
.tile__icobtn:hover { color: var(--ink); background: var(--bg-alt); }
html[data-theme="dark"] .tile__icobtn:hover { background: #1d1d1f; }
.tile__icobtn:active { transform: scale(.9); }
.tile__icobtn.is-on { color: var(--accent); }
.tile__icobtn.is-on svg { fill: currentColor; }
.tile__icobtn.is-on svg { animation: starPop 480ms var(--ease); }
@keyframes starPop { 0% { transform: scale(.6); } 45% { transform: scale(1.28); } 100% { transform: scale(1); } }

/* 悬停展开的背景补充 */
.tile__drawer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--t-slow) var(--ease); }
.tile__drawer > div { overflow: hidden; }
.tile.is-bg .tile__drawer { grid-template-rows: 1fr; }
.tile__drawerIn {
  margin: 0 28px; padding: 20px 0 6px; border-top: 1px solid var(--line-2);
  opacity: 0; transform: translateY(-6px);
  transition: opacity var(--t-mid) var(--ease-out) 80ms, transform var(--t-mid) var(--ease) 80ms;
}
.tile.is-bg .tile__drawerIn { opacity: 1; transform: none; }
.bgnote + .bgnote { margin-top: 15px; }
.bgnote__t { font-size: 12px; font-weight: 500; color: var(--tag); margin-bottom: 5px; }
.bgnote__b { font-size: 13.5px; line-height: 1.62; color: var(--muted); }

@media (max-width: 620px) {
  .tiles { grid-template-columns: 1fr; gap: 16px; }
  .tile__head { padding: 20px 22px 0; }
  .tile__pane { padding: 14px 22px 0; }
  .tile__title { font-size: 19px; }
  .tile__foot { padding: 20px 22px 18px; }
  .tile__drawerIn { margin: 0 22px; }
}

/* ══ 头条 ══════════════════════════════════════════════ */

.lead {
  --tag: var(--faint);
  position: relative; overflow: hidden;
  padding: 52px 56px 46px;
  background: var(--bg);
  border-radius: var(--r-xl);
  box-shadow: var(--sh-1);
  cursor: pointer;
  transition: box-shadow var(--t-mid) var(--ease), transform var(--t-mid) var(--ease);
  animation: tileIn 700ms var(--ease) both;
}
@media (hover: hover) and (pointer: fine) {
  .lead:hover { box-shadow: var(--sh-2); transform: translateY(-2px); }
}
.lead__top { display: flex; align-items: center; gap: 10px; margin-bottom: 26px; }
.lead__dot { width: 8px; height: 8px; border-radius: 99px; background: var(--tag); }
.lead__cat { font-size: 12.5px; font-weight: 500; color: var(--ink-2); }
.lead__src { margin-left: auto; font-size: 12.5px; color: var(--faint); }
.lead__title {
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 600; letter-spacing: -.03em; line-height: 1.2;
  max-width: 20em; margin-bottom: 22px;
}
.lead__digest {
  font-size: clamp(16px, 1.7vw, 19px); line-height: 1.62;
  color: var(--muted); max-width: 46em;
}
.lead__cols {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px;
  margin-top: 44px; padding-top: 40px; border-top: 1px solid var(--line-2);
}
.lead__h {
  font-size: 11px; font-weight: 500; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ghost); margin-bottom: 20px;
}
.lead__points { counter-reset: lp; }
.lead__points li {
  position: relative; padding-left: 30px; margin-bottom: 15px;
  font-size: 15px; line-height: 1.65; color: var(--ink-2); counter-increment: lp;
}
.lead__points li::before {
  content: counter(lp, decimal-leading-zero);
  position: absolute; left: 0; top: 2px;
  font-size: 11px; color: var(--ghost); font-variant-numeric: tabular-nums;
}
.lead__angles li {
  position: relative; padding-left: 20px; margin-bottom: 14px;
  font-size: 15px; line-height: 1.65; color: var(--muted);
}
.lead__angles li::before {
  content: ""; position: absolute; left: 0; top: 11px;
  width: 8px; height: 1.5px; background: var(--tag);
}
.lead__foot {
  display: flex; align-items: center; gap: 14px;
  margin-top: 44px; padding-top: 26px; border-top: 1px solid var(--line-2);
}
.lead__more {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; color: var(--accent);
}
.lead__more svg { width: 14px; height: 14px; transition: transform var(--t-mid) var(--ease); }
.lead:hover .lead__more svg { transform: translateX(4px); }
.lead__acts { margin-left: auto; display: flex; align-items: center; gap: 6px; }

@media (max-width: 860px) {
  .lead { padding: 36px 28px 32px; border-radius: var(--r-l); }
  .lead__cols { grid-template-columns: 1fr; gap: 34px; margin-top: 32px; padding-top: 30px; }
  .lead__foot { margin-top: 30px; padding-top: 22px; }
}

/* ══ 洞察带 ════════════════════════════════════════════ */

.insights { display: grid; grid-template-columns: repeat(3, 1fr); gap: 64px; }
.insight__label {
  font-size: 11px; font-weight: 500; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ghost); margin-bottom: 24px;
}
.insight__big { font-size: 30px; font-weight: 600; letter-spacing: -.028em; margin-bottom: 8px; }
.insight__sub { font-size: 12.5px; color: var(--faint); margin-bottom: 18px; }
.insight__body { font-size: 14.5px; line-height: 1.65; color: var(--muted); }
.insight__link {
  display: inline-flex; align-items: center; gap: 5px; margin-top: 18px;
  font-size: 14px; color: var(--accent);
}
.insight__link svg { width: 13px; height: 13px; transition: transform var(--t-mid) var(--ease); }
.insight__link:hover svg { transform: translateX(3px); }

.dist { display: flex; flex-direction: column; gap: 15px; }
.dist__row { display: grid; grid-template-columns: 62px 1fr 30px; align-items: center; gap: 14px; }
.dist__name { font-size: 13px; color: var(--ink-2); }
.dist__bar { height: 3px; border-radius: 99px; background: var(--line-2); overflow: hidden; }
.dist__fill {
  display: block; height: 100%; border-radius: 99px;
  transform-origin: left; animation: barGrow 1s var(--ease) both;
}
@keyframes barGrow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.dist__n { font-size: 12px; color: var(--faint); text-align: right; font-variant-numeric: tabular-nums; }

.dailyline {
  margin: 0; font-size: 19px; line-height: 1.6; letter-spacing: -.012em;
  color: var(--ink-2); text-indent: -.5em;
}

@media (max-width: 980px) {
  .insights { grid-template-columns: 1fr; gap: 46px; }
}

/* 使用说明带 */
.band__title {
  font-size: clamp(28px, 3.6vw, 44px); font-weight: 600;
  letter-spacing: -.03em; line-height: 1.2; max-width: 22em; margin-bottom: 56px;
}
.help { display: grid; grid-template-columns: repeat(3, 1fr); gap: 52px; }
.help__h { font-size: 21px; font-weight: 600; letter-spacing: -.02em; margin-bottom: 14px; }
.help__p { font-size: 15.5px; line-height: 1.72; color: var(--muted); }
@media (max-width: 980px) { .help { grid-template-columns: 1fr; gap: 38px; } .band__title { margin-bottom: 40px; } }

/* 资讯源面板 */
.srcpanel { border-top: 1px solid var(--line-2); padding-top: 26px; }
.srcpanel summary {
  cursor: pointer; list-style: none;
  font-size: 13px; color: var(--faint);
  display: flex; align-items: center; gap: 8px;
  transition: color var(--t-fast);
}
.srcpanel summary::-webkit-details-marker { display: none; }
.srcpanel summary::after { content: "›"; transition: transform var(--t-mid) var(--ease); }
.srcpanel[open] summary::after { transform: rotate(90deg); }
.srcpanel summary:hover { color: var(--ink); }
.srclist {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 10px 26px; margin-top: 26px;
}
.srclist__row { display: flex; align-items: center; gap: 9px; font-size: 12.5px; color: var(--muted); }
.srclist__dot { width: 5px; height: 5px; border-radius: 99px; background: var(--c-env); flex: none; }
.srclist__row.is-down .srclist__dot { background: var(--line); }
.srclist__row.is-down { color: var(--ghost); }
.srclist__name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.srclist__ms { margin-left: auto; font-size: 11px; color: var(--ghost); font-variant-numeric: tabular-nums; }

/* ══ 筛选栏 ════════════════════════════════════════════ */

.filterbar {
  position: sticky; top: var(--nav-h); z-index: 40;
  background: var(--bg-blur);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line-2);
  margin-bottom: 44px;
}
.filterbar__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; flex-wrap: wrap; padding-top: 14px; padding-bottom: 14px;
}
.filterbar__right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 12px; border-radius: 99px;
  font-size: 12.5px; color: var(--muted);
  border: 1px solid transparent; background: var(--bg-alt);
  transition: all var(--t-fast) var(--ease-out);
}
html[data-theme="dark"] .chip { background: #1d1d1f; }
.chip__dot { width: 5px; height: 5px; border-radius: 99px; background: var(--tag, var(--ghost)); }
.chip:hover { color: var(--ink); }
.chip.is-active { color: var(--bg); background: var(--ink); }
html[data-theme="dark"] .chip.is-active { color: #000; background: var(--ink); }

.segmented {
  display: inline-flex; padding: 2px; gap: 2px;
  background: var(--bg-alt); border-radius: 99px;
}
html[data-theme="dark"] .segmented { background: #1d1d1f; }
.segmented button {
  height: 26px; padding: 0 13px; border-radius: 99px;
  font-size: 12.5px; color: var(--muted); white-space: nowrap;
  transition: all var(--t-fast) var(--ease-out);
}
.segmented button:hover { color: var(--ink); }
.segmented button.is-active { color: var(--ink); background: var(--bg); box-shadow: var(--sh-1); }
html[data-theme="dark"] .segmented button.is-active { background: #48484a; color: #fff; }

.searchtag {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 28px;
  padding: 7px 8px 7px 16px; border-radius: 99px;
  font-size: 13px; color: var(--ink-2); background: var(--bg-alt);
}
html[data-theme="dark"] .searchtag { background: #1d1d1f; }
.searchtag button { font-size: 12.5px; color: var(--faint); padding: 3px 10px; border-radius: 99px; }
.searchtag button:hover { color: var(--ink); background: var(--bg); }

.loadmore { margin-top: 44px; }
.emptystate {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 120px 20px; text-align: center;
}
.emptystate p { font-size: 21px; font-weight: 500; color: var(--ink-2); letter-spacing: -.02em; }
.emptystate span { font-size: 15px; color: var(--faint); }

.toolbar {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 28px; flex-wrap: wrap; margin-bottom: 52px;
}
.toolbar__actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

/* ══ 时间轴 ════════════════════════════════════════════ */

.timeline { position: relative; padding-left: 46px; }
.timeline__spine { position: absolute; left: 3px; top: 10px; bottom: 60px; width: 1px; background: var(--line-2); overflow: hidden; }
.timeline__fill {
  position: relative; display: block; width: 100%; height: 0%;
  background: var(--ink); opacity: .35;
  transition: height 140ms linear;
}
.timeline__fill::after {
  content: ""; position: absolute; left: 50%; bottom: -3px;
  width: 7px; height: 7px; margin-left: -3.5px; border-radius: 99px;
  background: var(--ink);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--ink) 12%, transparent),
              0 0 18px color-mix(in srgb, var(--ink) 28%, transparent);
}
.tlgroup { position: relative; padding-bottom: 68px; }
.tlgroup__dot {
  position: absolute; left: -47px; top: 13px;
  width: 7px; height: 7px; border-radius: 99px;
  background: var(--bg); border: 1.5px solid var(--ink-2);
}
.tlgroup__head {
  position: sticky; top: calc(var(--nav-h) + 4px); z-index: 5;
  display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap;
  padding: 10px 0 18px;
  background: linear-gradient(180deg, var(--bg) 68%, transparent);
}
.tlgroup__date { font-size: 26px; font-weight: 600; letter-spacing: -.025em; }
.tlgroup__wd { font-size: 13px; color: var(--faint); }
.tlgroup__n { margin-left: auto; font-size: 12px; color: var(--ghost); font-variant-numeric: tabular-nums; }
.tlgroup__themes { display: flex; gap: 6px; flex-wrap: wrap; padding-bottom: 22px; }

.tlitem {
  position: relative; display: grid; grid-template-columns: 58px 1fr; gap: 22px;
  padding: 17px 0; border-bottom: 1px solid var(--line-2);
  cursor: pointer;
  opacity: 0; transform: translateY(14px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease), background-color var(--t-fast);
}
.tlitem.is-in { opacity: 1; transform: none; }
.tlitem:hover { background: var(--bg-alt); }
.tlitem:hover .tlitem__title { color: var(--accent); }
@media (hover: hover) and (pointer: fine) {
  .tlitem:hover { transform: translateX(6px); }
  .tlitem.is-in:hover { transform: translateX(6px); }
}
.tlitem__time { font-size: 12px; color: var(--ghost); font-variant-numeric: tabular-nums; padding-top: 3px; }
.tlitem__title { font-size: 17px; font-weight: 500; letter-spacing: -.015em; line-height: 1.45; transition: color var(--t-fast); }
.tlitem__meta { display: flex; align-items: center; gap: 9px; margin-top: 7px; flex-wrap: wrap; }
.tlitem__src { font-size: 12.5px; color: var(--faint); }
.tlitem__cat { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; color: var(--muted); }
.tlitem__cat i { width: 5px; height: 5px; border-radius: 99px; background: var(--tag); }
.tlitem__more {
  margin-top: 12px; font-size: 14.5px; line-height: 1.6; color: var(--muted);
  display: none; max-width: 62em;
}
.tlitem.is-open .tlitem__more { display: block; animation: fade var(--t-mid) var(--ease-out) both; }

@media (max-width: 620px) {
  .timeline { padding-left: 22px; }
  .timeline__spine { left: 1px; }
  .tlgroup__dot { left: -22px; top: 12px; }
  .tlitem { grid-template-columns: 1fr; gap: 6px; padding: 15px 0; }
  .tlitem__time { padding-top: 0; }
  .tlgroup__date { font-size: 22px; }
}

/* ══ 收藏 ══════════════════════════════════════════════ */

.savedgroup { margin-bottom: 76px; }
.savedgroup__head {
  display: flex; align-items: baseline; gap: 12px;
  padding-bottom: 18px; margin-bottom: 28px; border-bottom: 1px solid var(--line-2);
}
.savedgroup__title { font-size: 21px; font-weight: 600; letter-spacing: -.02em; }
.savedgroup__n { margin-left: auto; font-size: 12.5px; color: var(--ghost); }

/* ══ 放大阅读视图 ══════════════════════════════════════ */

.reader { position: fixed; inset: 0; z-index: 150; }
.reader__scrim {
  position: absolute; inset: 0;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  backdrop-filter: blur(22px) saturate(160%);
  -webkit-backdrop-filter: blur(22px) saturate(160%);
}
.reader__panel {
  position: absolute; left: 50%; top: 50%;
  width: min(940px, 100vw); height: min(92vh, 100%);
  margin: 0;
  transform: translate(-50%, -50%);
  background: var(--bg);
  border-radius: var(--r-xl);
  box-shadow: var(--sh-3);
  overflow: hidden;
  display: flex; flex-direction: column;
  will-change: transform, border-radius;
}
.reader__progress {
  position: absolute; top: 0; left: 0; right: 0; height: 2px; z-index: 4;
  background: transparent;
}
.reader__progress span {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, transparent, var(--tag, var(--accent)));
  opacity: .75;
  box-shadow: 0 0 14px color-mix(in srgb, var(--tag, var(--accent)) 45%, transparent);
  transition: width 110ms linear;
}
.reader__close {
  position: absolute; top: 20px; right: 20px; z-index: 5;
  width: 34px; height: 34px; padding: 8px; border-radius: 99px;
  color: var(--muted);
  background: color-mix(in srgb, var(--bg-alt) 88%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: all var(--t-fast) var(--ease-out);
}
.reader__close:hover { color: var(--ink); background: var(--bg-alt); transform: rotate(90deg); }
.reader__scroll { flex: 1; overflow-y: auto; overscroll-behavior: contain; position: relative; }
.reader__glow {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(520px circle at var(--rx, 50%) var(--ry, 20%),
    color-mix(in srgb, var(--tag, var(--accent)) 7%, transparent), transparent 68%);
  opacity: 0; transition: opacity 700ms var(--ease-out);
}
.reader__panel.is-glow .reader__glow { opacity: 1; }
.article { position: relative; z-index: 1; }
.reader__dock {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 4;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 34px 46px calc(18px + env(safe-area-inset-bottom));
  background: linear-gradient(180deg, transparent 0%, var(--bg) 52%, var(--bg) 100%);
  pointer-events: none;
}
.reader__dock > * { pointer-events: auto; }

/* 文章排版 */
.article { max-width: var(--wrap-text); margin: 0 auto; padding: 96px 46px 180px; }
.article__top { display: flex; align-items: center; gap: 10px; margin-bottom: 26px; flex-wrap: wrap; }
.article__dot { width: 8px; height: 8px; border-radius: 99px; background: var(--tag, var(--faint)); }
.article__cat { font-size: 12.5px; font-weight: 500; color: var(--ink-2); }
.article__src { font-size: 12.5px; color: var(--faint); }
.article__title {
  font-size: clamp(30px, 4.2vw, 46px);
  font-weight: 600; letter-spacing: -.032em; line-height: 1.16;
  margin-bottom: 28px;
}
.article__lede {
  font-size: clamp(18px, 2vw, 21px); line-height: 1.6; letter-spacing: -.012em;
  color: var(--muted);
}
.article__sec {
  margin-top: 62px;
  opacity: 0; transform: translateY(24px);
  transition: opacity 760ms var(--ease), transform 760ms var(--ease);
}
.article__sec.is-in { opacity: 1; transform: none; }

/* 标题逐字浮现 */
.article__title .cw {
  display: inline-block;
  opacity: 0; transform: translateY(.42em) rotate(2.5deg);
  animation: cwIn 660ms var(--ease) both;
  animation-delay: calc(var(--i) * 19ms + 130ms);
}
@keyframes cwIn { to { opacity: 1; transform: none; } }
.article__label {
  display: flex; align-items: center; gap: 14px;
  font-size: 11px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ghost); margin-bottom: 28px;
}
.article__label::after { content: ""; flex: 1; height: 1px; background: var(--line-2); }

.article__points { counter-reset: ap; }
.article__points li {
  position: relative; padding-left: 40px; margin-bottom: 24px;
  font-size: 17px; line-height: 1.68; color: var(--ink-2);
  counter-increment: ap;
}
.article__points li::before {
  content: counter(ap, decimal-leading-zero);
  position: absolute; left: 0; top: 4px;
  font-size: 12px; color: var(--ghost); font-variant-numeric: tabular-nums;
}

.article__bg { display: flex; flex-direction: column; gap: 14px; }
.article__bgItem {
  padding: 24px 26px; border-radius: var(--r-m);
  background: var(--bg-alt);
}
html[data-theme="dark"] .article__bgItem { background: #1d1d1f; }
.article__bgT { font-size: 13px; font-weight: 500; color: var(--tag, var(--accent)); margin-bottom: 8px; }
.article__bgB { font-size: 15.5px; line-height: 1.66; color: var(--muted); }

.article__angles li {
  position: relative; padding-left: 26px; margin-bottom: 20px;
  font-size: 17px; line-height: 1.66; color: var(--ink-2); letter-spacing: -.008em;
}
.article__angles li::before {
  content: ""; position: absolute; left: 0; top: 13px;
  width: 11px; height: 2px; background: var(--tag, var(--accent));
}

.article__chips { display: flex; flex-wrap: wrap; gap: 8px; }
.article__chip {
  font-size: 13px; color: var(--ink-2);
  padding: 6px 14px; border-radius: 99px;
  background: var(--bg-alt);
}
html[data-theme="dark"] .article__chip { background: #1d1d1f; }
.article__chip b { font-weight: 500; }
.article__chip span { color: var(--ghost); margin-left: 7px; }

.article__figs { display: flex; flex-wrap: wrap; gap: 8px; }
.article__fig {
  font-size: 13px; color: var(--ink-2); font-variant-numeric: tabular-nums;
  padding: 5px 12px; border-radius: 8px; background: var(--bg-alt);
}
html[data-theme="dark"] .article__fig { background: #1d1d1f; }

.article__out {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-size: 14px; color: var(--faint);
}
.article__out a { color: var(--accent); display: inline-flex; align-items: center; gap: 5px; }
.article__out a svg { width: 14px; height: 14px; }

/* ── 阅读视图内的深度板块 ─────────────────────────────── */

/* 事件速览 */
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; }
.facts > div { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line-2); }
.facts dt { flex: 0 0 52px; font-size: 12.5px; color: var(--ghost); }
.facts dd { margin: 0; font-size: 14.5px; line-height: 1.55; color: var(--ink-2); }

/* 来龙去脉 */
.flow { position: relative; padding-left: 26px; }
.flow::before { content: ""; position: absolute; left: 5px; top: 10px; bottom: 12px; width: 1px; background: var(--line-2); }
.flow__step { position: relative; padding-bottom: 24px; }
.flow__step:last-child { padding-bottom: 0; }
.flow__step::before {
  content: ""; position: absolute; left: -25px; top: 6px;
  width: 7px; height: 7px; border-radius: 99px;
  background: var(--bg); border: 1.5px solid var(--tag, var(--accent));
}
.flow__tag { display: block; font-size: 11px; letter-spacing: .1em; color: var(--ghost); margin-bottom: 5px; }
.flow__text { font-size: 15.5px; line-height: 1.7; color: var(--ink-2); }

/* 概念详解 */
.concept { padding-left: 18px; border-left: 2px solid color-mix(in srgb, var(--tag, var(--accent)) 35%, transparent); }
.concept + .concept { margin-top: 22px; }
.concept__t { font-size: 16.5px; font-weight: 600; letter-spacing: -.018em; margin-bottom: 6px; }
.concept__b { font-size: 15px; line-height: 1.7; color: var(--muted); }

/* 多方视角（类名用 pv，避免与页面级 .view 冲突） */
.pv { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 20px; padding: 15px 0; border-bottom: 1px solid var(--line-2); }
.pv:first-child { border-top: 1px solid var(--line-2); }
.pv__who { font-size: 13.5px; font-weight: 500; color: var(--tag, var(--accent)); padding-top: 1px; }
.pv__txt { font-size: 15px; line-height: 1.68; color: var(--ink-2); }
.views__debate {
  margin-top: 24px; padding: 20px 22px; border-radius: var(--r-m);
  background: var(--bg-alt); font-size: 15px; line-height: 1.72; color: var(--ink-2);
}
.views__debate b { display: block; font-weight: 500; color: var(--tag, var(--accent)); margin-bottom: 7px; font-size: 13px; letter-spacing: .04em; }

/* 词汇与表达 */
.lex__item { padding: 17px 0; border-bottom: 1px solid var(--line-2); }
.lex__item:first-child { border-top: 1px solid var(--line-2); }
.lex__head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.lex__w { font-size: 16.5px; font-weight: 600; letter-spacing: -.018em; }
.lex__used {
  font-size: 11px; color: var(--tag, var(--accent)); padding: 1px 8px;
  border: 1px solid color-mix(in srgb, var(--tag, var(--accent)) 45%, transparent); border-radius: 99px;
}
.lex__d { margin-top: 7px; font-size: 14.5px; line-height: 1.62; color: var(--ink-2); }
.lex__u { margin-top: 5px; font-size: 13.5px; line-height: 1.62; color: var(--faint); }
.lex__u::before { content: "用法 · "; color: var(--ghost); }

/* 数据与论据 */
.evidence__note { font-size: 16px; line-height: 1.72; color: var(--ink-2); margin-bottom: 20px; }
.evidence__note.is-strong { padding-left: 18px; border-left: 2px solid var(--tag, var(--accent)); }

/* 思辨问题 */
.asks { counter-reset: ask; }
.asks li {
  position: relative; padding-left: 30px; margin-bottom: 16px;
  font-size: 16px; line-height: 1.68; color: var(--ink-2); counter-increment: ask;
}
.asks li::before {
  content: counter(ask); position: absolute; left: 2px; top: 1px;
  font-size: 13px; font-weight: 600; color: var(--tag, var(--accent)); opacity: .5;
}

/* 这条素材的价值 */
.worth {
  margin-top: 66px; padding: 40px 42px 36px; border-radius: var(--r-l); background: var(--bg-alt);
  opacity: 0; transform: translateY(24px);
  transition: opacity 760ms var(--ease), transform 760ms var(--ease);
}
.worth.is-in { opacity: 1; transform: none; }
.worth__grid { display: grid; gap: 32px; }
.worth__h {
  font-size: 12px; font-weight: 600; letter-spacing: .1em;
  color: var(--tag, var(--accent)); margin-bottom: 11px;
}
.worth__p { font-size: 15.5px; line-height: 1.74; color: var(--ink-2); }
.worth__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.worth__tag { font-size: 12.5px; padding: 5px 13px; border-radius: 99px; background: var(--bg); color: var(--muted); }

/* 相关素材 */
.related { display: grid; gap: 10px; }
.related__item {
  display: block; padding: 17px 20px; border-radius: var(--r-m);
  border: 1px solid var(--line-2); cursor: pointer;
  transition: border-color var(--t-fast) var(--ease-out), background-color var(--t-fast) var(--ease-out);
}
.related__item:hover { border-color: var(--line); background: var(--bg-alt); }
.related__cat { font-size: 11.5px; color: var(--faint); }
.related__title { display: block; margin-top: 6px; font-size: 15.5px; font-weight: 500; letter-spacing: -.014em; line-height: 1.5; }
.related__src { display: block; margin-top: 7px; font-size: 12px; color: var(--ghost); }

@media (max-width: 860px) {
  .reader__panel { width: 100vw; height: 100%; border-radius: 0; }
  .article { padding: 74px 26px 200px; }
  .article__sec { margin-top: 48px; }
  .reader__dock { padding: 30px 22px calc(14px + env(safe-area-inset-bottom)); gap: 8px; }
  .reader__dock .quietbtn { padding: 0 13px; font-size: 13px; }
}
@media (max-width: 620px) {
  .article { padding: 66px 22px 210px; }
  .article__points li { padding-left: 32px; font-size: 16px; }
  .facts { grid-template-columns: 1fr; gap: 0; }
  .pv { grid-template-columns: 1fr; gap: 6px; }
  .worth { padding: 30px 24px 28px; margin-top: 48px; }
}

/* ── 主题切换的圆形扩散 ───────────────────────────────── */

::view-transition-old(root),
::view-transition-new(root) { animation: none; mix-blend-mode: normal; }
::view-transition-old(root) { z-index: 1; }
::view-transition-new(root) { z-index: 2; }

/* ── 手机访问面板 ─────────────────────────────────────── */

.sheet { position: fixed; inset: 0; z-index: 160; display: grid; place-items: center; }
.sheet__scrim {
  position: absolute; inset: 0;
  background: color-mix(in srgb, var(--ink) 22%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  animation: fade var(--t-mid) var(--ease-out) both;
}
.sheet__panel {
  position: relative; width: min(520px, calc(100vw - 40px));
  padding: 44px 44px 38px; border-radius: var(--r-l);
  background: var(--bg); box-shadow: var(--sh-3);
  animation: rise 460ms var(--ease) both;
}
.sheet__close {
  position: absolute; top: 16px; right: 16px;
  width: 32px; height: 32px; padding: 7px; border-radius: 99px;
  color: var(--muted); transition: all var(--t-fast) var(--ease-out);
}
.sheet__close:hover { color: var(--ink); background: var(--bg-alt); }
.sheet__title { font-size: 26px; letter-spacing: -.026em; margin-bottom: 12px; }
.sheet__sub { font-size: 15px; line-height: 1.65; color: var(--muted); margin-bottom: 30px; }

.neturl {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 20px; border-radius: var(--r-m);
  background: var(--bg-alt); margin-bottom: 12px;
}
.neturl__main { flex: 1; min-width: 0; }
.neturl__label { font-size: 11.5px; letter-spacing: .08em; color: var(--ghost); margin-bottom: 5px; }
.neturl__value {
  font-family: var(--font-mono); font-size: 17px; letter-spacing: -.01em;
  color: var(--ink); word-break: break-all; line-height: 1.35;
}
.neturl__copy {
  flex: none; height: 32px; padding: 0 14px; border-radius: 99px;
  font-size: 13px; color: var(--ink-2); border: 1px solid var(--line);
  transition: all var(--t-fast) var(--ease-out);
}
.neturl__copy:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.neturl--minor { background: transparent; padding: 10px 4px; margin-bottom: 0; }
.neturl--minor .neturl__value { font-size: 14px; color: var(--muted); }
.netnote { font-size: 13px; line-height: 1.7; color: var(--faint); margin-top: 22px; }
.netnote b { color: var(--ink-2); font-weight: 500; }

/* ── 延伸观看 ─────────────────────────────────────────── */

.watch__row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.watch__chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: 99px;
  border: 1px solid var(--line-2); font-size: 13.5px; color: var(--ink-2);
  transition: all var(--t-fast) var(--ease-out);
}
.watch__chip span { color: var(--ghost); font-size: 12px; }
.watch__chip:hover { border-color: transparent; background: var(--ink); color: var(--bg); }
.watch__chip:hover span { color: color-mix(in srgb, var(--bg) 62%, transparent); }

.watch__list { display: grid; gap: 10px; }
.watch__item {
  display: block; padding: 17px 20px; border-radius: var(--r-m);
  background: var(--bg-alt); transition: transform var(--t-mid) var(--ease), background-color var(--t-fast);
}
@media (hover: hover) and (pointer: fine) { .watch__item:hover { transform: translateX(5px); } }
.watch__label { font-size: 15.5px; font-weight: 500; letter-spacing: -.014em; margin-bottom: 5px; }
.watch__why { font-size: 13.5px; line-height: 1.62; color: var(--muted); }
.watch__q {
  display: inline-block; margin-top: 9px;
  font-size: 11.5px; color: var(--faint);
  padding: 3px 10px; border-radius: 99px; background: var(--bg);
}
.watch__hint { font-size: 12.5px; color: var(--faint); margin-top: 20px; line-height: 1.7; }

/* ── 飞行星标 ─────────────────────────────────────────── */

.flystar {
  position: fixed; z-index: 300; pointer-events: none;
  width: 20px; height: 20px; color: var(--accent);
  filter: drop-shadow(0 3px 10px color-mix(in srgb, var(--accent) 45%, transparent));
}
.flystar svg { width: 100%; height: 100%; fill: currentColor; stroke: currentColor; }

/* ── Toast ────────────────────────────────────────────── */

.toast {
  position: fixed; left: 50%; bottom: 44px; z-index: 200;
  transform: translateX(-50%);
  padding: 12px 22px; border-radius: 99px;
  font-size: 14px; color: var(--bg); background: var(--ink);
  box-shadow: var(--sh-2);
  animation: toastIn 420ms var(--ease) both;
  max-width: calc(100vw - 40px);
}
.toast.is-out { animation: toastOut 280ms var(--ease-out) both; }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 16px) scale(.96); } to { opacity: 1; transform: translate(-50%, 0) scale(1); } }
@keyframes toastOut { to { opacity: 0; transform: translate(-50%, 10px) scale(.97); } }

/* ── 骨架屏 ───────────────────────────────────────────── */

.skel { position: relative; overflow: hidden; background: var(--bg); border: 1px solid var(--line-2); border-radius: var(--r-l); }
.band--alt .skel { background: var(--bg); }
.skel::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, var(--bg-alt), transparent);
  transform: translateX(-100%); animation: shimmer 1.6s infinite;
}
@keyframes shimmer { to { transform: translateX(100%); } }
.skel__line { height: 12px; border-radius: 99px; background: var(--bg-alt); margin: 0 28px 12px; }
.skel__line:first-child { margin-top: 28px; }
.skel--card { min-height: 230px; }

/* ── 页脚 / 底部导航 ─────────────────────────────────── */

.foot { border-top: 1px solid var(--line-2); padding: 64px 0 76px; }
.foot__title { font-size: 14px; font-weight: 600; margin-bottom: 14px; }
.foot__note { font-size: 13px; line-height: 1.6; color: var(--faint); max-width: 62em; }
.foot__meta { font-size: 12px; color: var(--ghost); margin-top: 10px; }

.tabbar { display: none; }

@media (max-width: 860px) {
  .foot { padding: 48px 0 110px; }
  .tabbar {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
    padding: 8px 8px calc(8px + env(safe-area-inset-bottom));
    background: var(--bg-blur);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-top: 1px solid var(--line-2);
  }
  .tabbar a {
    flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px;
    padding: 6px 0; font-size: 10.5px; color: var(--faint);
    transition: color var(--t-fast) var(--ease-out);
  }
  .tabbar a svg { width: 21px; height: 21px; }
  .tabbar a.is-active { color: var(--ink); }
  .toast { bottom: 96px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important; animation-iteration-count: 1 !important;
    transition-duration: .01ms !important; animation-delay: 0ms !important;
  }
  /* 关闭动效时，所有依赖动画的可见性必须直接落到终态 */
  .tile, .lead, .view, .article__title .cw {
    animation: none !important; opacity: 1 !important; transform: none !important;
  }
  .article__sec, .worth, .tlitem { opacity: 1 !important; transform: none !important; }
  .tile__drawerIn { opacity: 1 !important; transform: none !important; }
}