/* ============================================================
 * 霞 · 全球火烧云预报 —— 视觉层
 * 天幕即界面：天空配色、云底光照、太阳与水面倒影都由评分 / 时刻驱动。
 * ============================================================ */
:root {
  --ink: #0B0918;
  --ink-2: #120E26;
  --cream: #F4EDE4;
  --muted: #B9AFA6;
  --dim: #9C9189;
  --ember: #FF5A1F;
  --gold: #FFC36B;
  --line: rgba(244, 237, 228, .12);
  --gutter: clamp(16px, 4vw, 56px);
  --serif: 'Noto Serif SC', 'Songti SC', 'STSong', serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --italic: 'Instrument Serif', Georgia, serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--ink); color: var(--cream);
  font-family: var(--serif); -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
a { color: var(--gold); }
a:hover { color: #FFE2B0; }
button { font-family: inherit; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 50; background: var(--cream); color: var(--ink); padding: 10px 16px; }
.skip:focus { left: 8px; }

/* ---------------- 顶栏 ---------------- */
.topbar {
  position: relative; z-index: 20; display: flex; flex-wrap: wrap; align-items: center;
  justify-content: space-between; gap: 16px 32px; padding: 20px var(--gutter);
  border-bottom: 1px solid var(--line); background: var(--ink);
}
.logo { display: flex; align-items: center; gap: 14px; text-decoration: none; color: var(--cream); }
.logo-stamp {
  display: inline-flex; align-items: center; justify-content: center; width: 48px; height: 48px;
  background: var(--ember); color: var(--ink); font-weight: 900; font-size: 30px; line-height: 1;
  border-radius: 2px; transform: rotate(-4deg);
}
.logo-text { display: flex; flex-direction: column; gap: 2px; }
.logo-text b { font-weight: 900; font-size: 18px; letter-spacing: .2em; }
.logo-text small { font-family: var(--mono); font-size: 10px; letter-spacing: .3em; color: var(--muted); }
.topnav { display: flex; flex-wrap: wrap; gap: 4px 28px; font-family: var(--mono); font-size: 13px; letter-spacing: .15em; }
.topnav a { color: var(--cream); text-decoration: none; }
.topnav a:hover { color: var(--gold); }

.search {
  position: relative; display: flex; align-items: center; flex: 0 1 380px; min-width: 240px;
  border: 1px solid rgba(244, 237, 228, .3); border-radius: 999px; padding: 4px 4px 4px 18px;
  color: var(--muted); background: rgba(11, 9, 24, .5);
}
.search input {
  flex: 1; min-width: 0; background: transparent; border: 0; outline: none; color: var(--cream);
  font-family: var(--serif); font-size: 15px; padding: 10px 12px;
}
.search input::placeholder { color: var(--dim); }
.search button[type="submit"] {
  min-height: 44px; padding: 0 22px; border: 0; border-radius: 999px; background: var(--cream);
  color: var(--ink); font-weight: 700; font-size: 15px; cursor: pointer;
}
.locate-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-height: 44px; padding: 0 14px; margin-right: 6px;
  border: 1px solid rgba(244, 237, 228, .35); border-radius: 999px; background: transparent; color: var(--cream);
  font-size: 14px; font-weight: 700; white-space: nowrap; cursor: pointer;
}
.locate-btn:hover { background: rgba(244, 237, 228, .1); }
.locate-btn.busy svg { animation: spin 1.2s linear infinite; }
.chip-geo { color: #FFE2B0; }
.dropdown {
  position: absolute; left: 0; right: 0; top: calc(100% + 8px); z-index: 30; max-height: 420px; overflow-y: auto;
  background: #16122C; border: 1px solid rgba(244, 237, 228, .2); border-radius: 12px; padding: 6px;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, .7);
}
.cand {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2px 12px; width: 100%; text-align: left;
  padding: 12px 14px; border: 0; border-radius: 8px; background: transparent; color: var(--cream); cursor: pointer;
}
.cand:hover, .cand:focus-visible { background: rgba(255, 195, 107, .1); }
.cand-name { font-weight: 700; font-size: 16px; }
.cand-coord { font-family: var(--mono); font-size: 11px; color: var(--dim); align-self: center; }
.cand-sub { grid-column: 1 / -1; font-size: 12px; color: var(--muted); }
.cand-status { padding: 14px; font-size: 14px; color: var(--muted); }

/* ---------------- 天幕 ---------------- */
.hero { position: relative; min-height: 860px; overflow: hidden; isolation: isolate; }
.hero-sky { position: absolute; inset: 0; transition: background 1.2s; animation: skyshift 12s ease-in-out infinite; }
.stars { position: absolute; inset: 0; pointer-events: none; }
.stars i {
  position: absolute; width: 2px; height: 2px; border-radius: 50%; background: #FFF6E6;
  animation: twinkle 4s ease-in-out infinite;
}
.rays {
  position: absolute; left: 62%; bottom: 200px; width: 2400px; height: 2400px; border-radius: 50%;
  background: repeating-conic-gradient(from 0deg, var(--ray, rgba(255,190,120,.22)) 0deg 1.4deg, transparent 1.4deg 4.6deg, var(--ray, rgba(255,190,120,.22)) 4.6deg 5.2deg, transparent 5.2deg 9deg);
  -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,.9) 0%, rgba(0,0,0,.35) 30%, transparent 55%);
  mask-image: radial-gradient(circle, rgba(0,0,0,.9) 0%, rgba(0,0,0,.35) 30%, transparent 55%);
  mix-blend-mode: screen; transform: translate(-50%, 50%); animation: raysway 16s ease-in-out infinite alternate;
  transition: opacity 1.2s;
}
.halo {
  position: absolute; left: 62%; bottom: 200px; width: 1100px; height: 700px; border-radius: 50%;
  mix-blend-mode: screen; transform: translate(-50%, 50%); animation: breathe 5s ease-in-out infinite;
}
.sun {
  position: absolute; left: 62%; bottom: 200px; width: 110px; height: 110px; border-radius: 50%;
  animation: sink 26s ease-in-out infinite alternate;
}
.cloud-deck {
  position: absolute; left: 0; right: 0; top: 0; bottom: 200px; perspective: 1200px;
  perspective-origin: 62% 100%; overflow: hidden; pointer-events: none;
}
.plane { position: absolute; left: -60%; right: -60%; bottom: 0; transform-origin: 50% 100%; }
.plane svg { position: absolute; top: 0; left: -20%; width: 140%; height: 100%; will-change: transform; }
.plane-hi { height: 1100px; transform: rotateX(-48deg); }
.plane-lo { height: 700px; transform: rotateX(-40deg); }
.drift-a { animation: driftA 34s ease-in-out infinite alternate; }
.drift-b { animation: driftB 22s ease-in-out infinite alternate; }
.skyline { position: absolute; left: 0; bottom: 199px; width: 100%; height: 56px; }
.water { position: absolute; left: 0; right: 0; bottom: 0; height: 200px; overflow: hidden; transition: background 1.2s; }
.ripples {
  position: absolute; inset: 0; background-image: repeating-linear-gradient(180deg, rgba(255,240,220,.07) 0 1px, transparent 1px 9px);
  animation: shimmer 2.2s linear infinite;
}
.glint {
  position: absolute; left: 62%; top: 0; width: 260px; height: 190px;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent); mask-image: linear-gradient(180deg, #000, transparent);
  filter: blur(1.2px); animation: glint 3.2s ease-in-out infinite;
}
.water-fade { position: absolute; left: 0; right: 0; bottom: 0; height: 110px; background: linear-gradient(180deg, rgba(11,9,24,0), var(--ink)); }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(11,9,24,.6) 0%, rgba(11,9,24,.15) 45%, rgba(11,9,24,0) 70%); }

.hero-inner {
  position: relative; z-index: 2; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 32px;
  padding: 56px var(--gutter) 240px; min-height: 860px; text-shadow: 0 2px 24px rgba(11,9,24,.35);
}
.hero-main { display: flex; flex-direction: column; justify-content: space-between; gap: 40px; flex: 1 1 520px; min-width: 0; }
.hero-head { display: flex; flex-direction: column; gap: 10px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 4px 18px; font-family: var(--mono); font-size: 12px; letter-spacing: .25em; color: rgba(244,237,228,.85); }
.city-name { margin: 0; font-weight: 900; font-size: clamp(56px, 9vw, 132px); line-height: .95; letter-spacing: -.02em; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.chip-btn {
  display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 18px;
  border: 1px solid rgba(244,237,228,.45); border-radius: 999px; background: rgba(11,9,24,.35);
  color: var(--cream); font-size: 14px; font-weight: 700; cursor: pointer; transition: background .2s, color .2s;
}
.chip-btn[aria-pressed="true"] { background: var(--cream); color: var(--ink); }
.chip-btn[aria-pressed="true"] svg path { fill: currentColor; }
.chip { display: inline-flex; align-items: center; min-height: 44px; padding: 0 16px; border-radius: 999px; background: rgba(11,9,24,.35); font-family: var(--mono); font-size: 13px; }
.fav-bar { display: flex; flex-wrap: wrap; gap: 8px; }
.fav-chip { display: inline-flex; align-items: center; border-radius: 999px; background: rgba(11,9,24,.35); border: 1px solid rgba(244,237,228,.2); }
.fav-chip button { min-height: 36px; border: 0; background: transparent; color: var(--cream); cursor: pointer; font-size: 13px; }
.fav-go { padding: 0 6px 0 14px; }
.fav-del { padding: 0 12px 0 6px; color: var(--muted) !important; font-size: 16px !important; }

.score-line { display: flex; align-items: flex-end; gap: 18px; flex-wrap: wrap; }
.score-big {
  font-family: var(--mono); font-weight: 800; font-size: clamp(140px, 20vw, 300px); line-height: .8;
  letter-spacing: -.06em; color: #FFF4E2; text-shadow: 0 0 60px var(--glow, rgba(255,120,40,.9));
  animation: flicker 5s steps(1) infinite;
}
.score-unit { display: flex; flex-direction: column; gap: 6px; padding-bottom: 14px; font-family: var(--mono); font-size: 13px; letter-spacing: .2em; }
.verdict { font-size: clamp(28px, 3.4vw, 48px); font-weight: 900; line-height: 1.2; margin-top: 6px; }
.action { font-family: var(--italic); font-style: italic; font-size: 26px; color: #FFE2B0; }
.action:not(:empty)::before { content: '— '; }
.reason { margin: 10px 0 0; max-width: 560px; font-size: 17px; line-height: 1.75; color: rgba(244,237,228,.92); }
.hero-facts { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 12px; font-family: var(--mono); font-size: 13px; letter-spacing: .06em; }
.load-error { margin-top: 16px; padding: 14px 18px; border: 1px solid rgba(255,90,31,.6); background: rgba(11,9,24,.6); border-radius: 6px; font-size: 14px; }
.grade-vertical {
  writing-mode: vertical-rl; font-weight: 900; font-size: clamp(120px, 16vw, 240px); line-height: .9;
  letter-spacing: .05em; color: transparent; -webkit-text-stroke: 2px rgba(255,244,226,.85); align-self: flex-start;
}

/* ---------------- 通用分区 ---------------- */
.kicker { margin: 0; font-family: var(--mono); font-size: 15px; font-weight: 700; letter-spacing: .3em; }
.hint { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.display { font-size: clamp(36px, 5vw, 72px); font-weight: 900; line-height: 1.05; margin-top: 14px; }
.sec { padding: 96px var(--gutter); border-top: 1px solid var(--line); }
.sec-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 24px 64px; margin-bottom: 40px; }
.sec-head > div { flex: 1 1 420px; min-width: 0; }
.sec-lede { flex: 1 1 360px; min-width: 0; margin: 0; font-size: 16px; line-height: 1.8; color: #CFC6BC; }
.hl { color: var(--gold); }
.ember { color: #FF6A2C; }
.note { margin: 28px 0 0; font-family: var(--mono); font-size: 12px; color: var(--dim); }

/* ---------------- 01 霞历 ---------------- */
.calendar { position: relative; z-index: 3; padding: 0 var(--gutter) 96px; margin-top: -96px; }
.sec-row { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 20px; }
.ev-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.ev-tile {
  position: relative; display: flex; flex-direction: column; justify-content: space-between; gap: 40px;
  min-height: 260px; padding: 22px 22px 30px; border: 1px solid rgba(244,237,228,.18); border-radius: 4px;
  color: var(--cream); text-align: left; cursor: pointer; overflow: hidden;
  transition: transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s, border-color .35s;
}
.ev-tile:hover { transform: translateY(-6px); }
.ev-tile[aria-pressed="true"] { border: 2px solid #FFF4E2; box-shadow: 0 24px 60px -20px var(--tile-glow, rgba(255,120,40,.8)); }
.ev-tile.past { filter: saturate(.55) brightness(.8); }
.ev-top { display: flex; justify-content: space-between; gap: 8px; font-family: var(--mono); font-size: 12px; letter-spacing: .15em; }
.ev-body { display: flex; flex-direction: column; gap: 4px; }
.ev-label { font-size: 22px; font-weight: 900; }
.ev-score { display: flex; align-items: baseline; gap: 12px; }
.ev-score b { font-family: var(--mono); font-weight: 800; font-size: 72px; line-height: 1; }
.ev-score span { font-size: 26px; font-weight: 900; }
.ev-short { font-size: 14px; color: rgba(244,237,228,.92); }
.ev-meter { position: absolute; left: 22px; right: 22px; bottom: 12px; height: 3px; background: rgba(244,237,228,.2); }
.ev-meter i { display: block; height: 3px; background: #FFF4E2; }
.ev-empty { grid-column: 1 / -1; margin: 0; padding: 28px 0; font-size: 15px; color: var(--muted); }
.ev-skeleton { min-height: 260px; border-radius: 4px; background: linear-gradient(100deg, #15112A 30%, #1E1838 50%, #15112A 70%); background-size: 300% 100%; animation: sheen 1.6s linear infinite; }

/* ---------------- 02 天色时间轴 ---------------- */
.tl-stage { position: relative; height: 600px; overflow: hidden; border-radius: 4px; isolation: isolate; }
.tl-glow { position: absolute; left: 68%; bottom: 140px; width: 1000px; height: 560px; transform: translate(-50%, 50%); border-radius: 50%; mix-blend-mode: screen; }
.tl-sun { position: absolute; left: 68%; width: 84px; height: 84px; transform: translate(-50%, 50%); border-radius: 50%; }
.tl-deck { bottom: 140px; perspective: 1100px; perspective-origin: 68% 100%; }
.plane-tl { height: 1000px; transform: rotateX(-48deg); }
.tl-skyline { bottom: 139px; height: 48px; }
.tl-water { height: 140px; }
.tl-water .glint { left: 68%; width: 200px; height: 130px; }
.tl-text {
  position: relative; z-index: 2; height: 100%; padding: 36px clamp(20px, 3vw, 44px) 168px;
  display: flex; flex-direction: column; justify-content: space-between; text-shadow: 0 2px 24px rgba(11,9,24,.55);
}
.tl-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-family: var(--mono); }
.tl-clock { font-size: clamp(40px, 5vw, 64px); font-weight: 800; letter-spacing: -.03em; }
.tl-stats { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; font-size: 13px; letter-spacing: .12em; }
.tl-phase { display: flex; flex-direction: column; gap: 10px; max-width: 760px; }
.tl-en { font-family: var(--mono); font-size: 13px; letter-spacing: .35em; }
.tl-name { font-size: clamp(64px, 10vw, 150px); font-weight: 900; line-height: .95; }
.tl-desc { font-size: 17px; line-height: 1.7; }

.tl-controls { display: flex; flex-direction: column; gap: 14px; margin-top: 28px; }
.tl-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
#tlPlay .ic-pause, #tlPlay[aria-pressed="true"] .ic-play { display: none; }
#tlPlay[aria-pressed="true"] .ic-pause { display: inline; }
.scrub { position: relative; padding: 8px 0; }
.scrub:focus-within { outline: 2px solid var(--gold); outline-offset: 10px; border-radius: 2px; }
.tl-bars { display: flex; align-items: flex-end; gap: 3px; height: 120px; }
.tl-bars i { flex: 1 1 0; min-width: 0; border-radius: 1px; opacity: .5; transition: opacity .2s, height .6s; }
.tl-bars i.on { opacity: 1; }
.tl-bands { position: relative; height: 44px; margin-top: 6px; }
.tl-bands span {
  position: absolute; top: 0; bottom: 0; display: flex; align-items: center; justify-content: center;
  overflow: hidden; font-size: 13px; font-weight: 700; white-space: nowrap; box-shadow: inset -1px 0 0 rgba(11,9,24,.6);
}
.tl-head { position: absolute; top: -8px; bottom: -8px; width: 2px; transform: translateX(-1px); background: #FFF4E2; box-shadow: 0 0 14px rgba(255,244,226,.8); pointer-events: none; }
.tl-head span { position: absolute; top: -6px; left: -6px; width: 14px; height: 14px; border-radius: 50%; background: #FFF4E2; }
/* 拖动由 .scrub 上的 pointer 事件处理（touch-action: pan-y 让竖向仍可滚页面）；
   range 只保留给键盘与读屏，不接收指针 */
.scrub { touch-action: pan-y; cursor: ew-resize; -webkit-user-select: none; user-select: none; -webkit-tap-highlight-color: transparent; }
.scrub.dragging .tl-head { box-shadow: 0 0 22px rgba(255,244,226,1); }
.scrub.dragging .tl-head span { transform: scale(1.4); }
.tl-head span { transition: transform .15s; }
.tl-input {
  position: absolute; left: 0; right: 0; top: 0; width: 100%; height: 170px; margin: 0;
  -webkit-appearance: none; appearance: none; background: transparent; opacity: 0; pointer-events: none;
}
.tl-ticks { position: relative; height: 18px; font-family: var(--mono); font-size: 12px; color: var(--dim); }
.tl-ticks span { position: absolute; }
.tl-legend { margin-top: 40px; display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.tl-card {
  display: flex; flex-direction: column; gap: 8px; min-height: 120px; padding: 16px; text-align: left;
  border-radius: 4px; border: 1px solid rgba(244,237,228,.15); background: rgba(244,237,228,.03);
  color: var(--cream); cursor: pointer;
}
.tl-card[aria-current="true"] { border: 2px solid var(--gold); }
.tl-card-h { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 900; }
.tl-card-h i { width: 12px; height: 12px; border-radius: 50%; box-shadow: 0 0 0 1px rgba(244,237,228,.3); }
.tl-card-t { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.tl-card-d { font-size: 13px; line-height: 1.6; color: #CFC6BC; }

/* ---------------- 03 大气剖面 ---------------- */
.sec-profile { background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%); }
.layers { display: flex; flex-direction: column; border-top: 1px solid rgba(244,237,228,.18); }
.layer-row {
  display: grid; grid-template-columns: 90px minmax(140px, 240px) minmax(0, 1fr) 64px; align-items: center;
  gap: 12px 24px; padding: 18px 0; border-bottom: 1px solid rgba(244,237,228,.1);
}
.layer-row:hover { background: rgba(255,195,107,.05); }
.layer-alt { font-family: var(--mono); font-size: 12px; color: var(--dim); }
.layer-name { display: flex; flex-direction: column; gap: 2px; }
.layer-name b { font-size: 18px; }
.layer-name span { font-size: 13px; color: var(--muted); }
.layer-track { position: relative; height: 14px; background: repeating-linear-gradient(90deg, rgba(244,237,228,.08) 0 2px, transparent 2px 6px); }
.layer-track i { position: absolute; left: 0; top: 0; bottom: 0; transform-origin: left center; animation: grow 1.4s cubic-bezier(.2,.8,.2,1) both; }
.layer-track em { position: absolute; left: 8px; top: -3px; font-style: normal; font-size: 12px; color: var(--dim); }
.layer-score { display: flex; flex-direction: column; align-items: flex-end; font-family: var(--mono); }
.layer-score b { font-size: 20px; }
.layer-score span { font-size: 11px; color: var(--dim); }
.profile-meta { display: flex; flex-wrap: wrap; gap: 12px 32px; margin-top: 24px; font-family: var(--mono); font-size: 12px; color: var(--muted); }

/* ---------------- 04 霞榜 ---------------- */
.sec-board { padding-left: 0; padding-right: 0; }
.sec-board .sec-head, .sec-board .rank, .sec-board .note { padding-left: var(--gutter); padding-right: var(--gutter); }
.sec-board .note { margin-left: 0; }
.board-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; flex: 0 1 auto !important; }
.tabs { display: flex; gap: 8px; }
.tab-btn, .btn-primary {
  min-height: 44px; padding: 0 22px; border-radius: 999px; border: 1px solid rgba(244,237,228,.4);
  background: transparent; color: var(--cream); font-size: 15px; font-weight: 700; cursor: pointer;
}
.tab-btn.active { background: var(--cream); color: var(--ink); }
.btn-primary { background: var(--ember); border-color: var(--ember); color: var(--ink); }
.btn-primary:disabled { opacity: .7; cursor: progress; }
.world {
  position: relative; margin: 0 var(--gutter); height: 300px; border: 1px solid rgba(244,237,228,.15);
  background-color: #0E0B20; overflow: hidden;
  background-image: repeating-linear-gradient(90deg, rgba(244,237,228,.06) 0 1px, transparent 1px 8.333%),
    repeating-linear-gradient(0deg, rgba(244,237,228,.06) 0 1px, transparent 1px 16.666%);
}
.terminator {
  position: absolute; top: 0; bottom: 0; width: 220px; transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(255,90,31,.22) 45%, rgba(255,195,107,.55) 50%, rgba(255,90,31,.22) 55%, transparent);
  animation: termpulse 4s ease-in-out infinite; transition: left 1s;
}
.terminator span { position: absolute; top: 10px; left: 50%; transform: translateX(-50%); font-family: var(--mono); font-size: 11px; color: var(--gold); white-space: nowrap; }
.dot { position: absolute; transform: translate(-50%, -50%); display: flex; align-items: center; gap: 6px; border: 0; padding: 4px; background: transparent; color: var(--cream); cursor: pointer; font-size: 12px; white-space: nowrap; }
.dot i { border-radius: 50%; }
.dot b { font-family: var(--mono); font-weight: 600; color: var(--gold); }
.world-l, .world-r { position: absolute; bottom: 10px; font-family: var(--mono); font-size: 11px; color: var(--dim); }
.world-l { left: 12px; } .world-r { right: 12px; }
.world-empty { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding: 16px; text-align: center; font-size: 15px; color: var(--muted); }
.ticker { overflow: hidden; margin: 28px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 14px 0; }
.ticker-inner { display: flex; gap: 48px; width: max-content; font-family: var(--italic); font-style: italic; font-size: 28px; color: #FFE2B0; white-space: nowrap; animation: marquee 60s linear infinite; }
.ticker-inner b { font-family: var(--mono); font-style: normal; font-size: 18px; color: #FF6A2C; margin-left: 6px; }
.rank { list-style: none; margin: 28px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); column-gap: 48px; }
.rank-row {
  display: grid; grid-template-columns: 56px minmax(0, 1fr) auto auto; align-items: center; gap: 16px; width: 100%;
  padding: 16px 0; border: 0; border-bottom: 1px solid var(--line); background: transparent; color: var(--cream); text-align: left; cursor: pointer;
}
.rank-row:hover { background: rgba(255,195,107,.06); }
.rank-no { font-family: var(--mono); font-size: 28px; font-weight: 800; color: #6E6560; }
.rank li:nth-child(-n+3) .rank-no { color: #FF6A2C; }
.rank-city { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.rank-city b { font-size: 20px; font-weight: 900; }
.rank-city span { font-size: 12px; color: var(--dim); }
.rank-grade { font-size: 15px; font-weight: 700; }
.rank-score { font-family: var(--mono); font-size: 26px; font-weight: 800; color: var(--gold); }

/* ---------------- 05 原理（浅色纸页） ---------------- */
.paper { padding: 112px var(--gutter); background: var(--cream); color: var(--ink); }
.paper a { color: #A8301A; }
.paper-display { margin-top: 24px; font-size: clamp(40px, 6.4vw, 104px); font-weight: 900; line-height: 1; letter-spacing: -.02em; max-width: 1200px; }
.paper-display em { font-family: var(--italic); font-weight: 400; color: #C2361A; }
.paper-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 40px; margin-top: 72px; }
.paper-grid div { display: flex; flex-direction: column; gap: 12px; border-top: 3px solid var(--ink); padding-top: 18px; }
.paper-grid b { font-family: var(--mono); font-size: 13px; font-weight: 800; }
.paper-grid p { margin: 0; font-size: 16px; line-height: 1.8; }
.paper-cap { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 24px; margin-top: 64px; }
.paper-cap div { display: flex; flex-direction: column; gap: 6px; }
.paper-cap b { font-family: var(--mono); font-size: 26px; font-weight: 800; }
.paper-cap span { font-size: 13px; color: #4A4340; }
.paper-foot { display: flex; flex-wrap: wrap; gap: 8px 32px; margin-top: 64px; padding-top: 24px; border-top: 1px solid rgba(11,9,24,.25); font-family: var(--mono); font-size: 12px; color: #4A4340; }
.footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; padding: 32px var(--gutter); font-family: var(--mono); font-size: 12px; color: var(--dim); }

/* ---------------- 手机 ---------------- */
@media (max-width: 720px) {
  .hero, .hero-inner { min-height: 760px; }
  .grade-vertical { writing-mode: horizontal-tb; font-size: 72px; -webkit-text-stroke-width: 1.5px; order: -1; }
  .layer-row { grid-template-columns: minmax(0, 1fr) 56px; }
  .layer-alt { grid-column: 1 / -1; }
  .layer-track { grid-column: 1 / -1; grid-row: 3; }
  .tl-stage { height: 520px; }
  .dot span { display: none; }
}

/* ---------------- 动画 ---------------- */
@keyframes skyshift { 0%, 100% { filter: hue-rotate(0deg) saturate(1) brightness(1); } 50% { filter: hue-rotate(-10deg) saturate(1.25) brightness(1.08); } }
@keyframes driftA { from { transform: translateX(-7%); } to { transform: translateX(7%); } }
@keyframes driftB { from { transform: translateX(6%); } to { transform: translateX(-8%); } }
@keyframes raysway { 0% { transform: translate(-50%, 50%) rotate(-5deg); } 100% { transform: translate(-50%, 50%) rotate(5deg); } }
@keyframes breathe { 0%, 100% { transform: translate(-50%, 50%) scale(1); opacity: .8; } 50% { transform: translate(-50%, 50%) scale(1.15); opacity: 1; } }
@keyframes sink { 0% { transform: translate(-50%, 5%); } 100% { transform: translate(-50%, 60%); } }
@keyframes shimmer { from { background-position: 0 0; } to { background-position: 0 36px; } }
@keyframes glint { 0%, 100% { transform: translateX(-50%) scaleX(1); opacity: .7; } 50% { transform: translateX(-50%) scaleX(1.45); opacity: 1; } }
@keyframes flicker { 0%, 100% { opacity: 1; } 47% { opacity: 1; } 50% { opacity: .6; } 53% { opacity: 1; } }
@keyframes grow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes twinkle { 0%, 100% { opacity: .15; } 50% { opacity: .9; } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes termpulse { 0%, 100% { opacity: .75; } 50% { opacity: 1; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes sheen { from { background-position: 100% 0; } to { background-position: 0 0; } }

/* 减弱动态：只停闪烁类效果，漂移与下沉放慢而不停 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .score-big, .ripples, .glint, .stars i, .ev-skeleton { animation: none !important; }
  .drift-a, .drift-b, .sun, .rays, .hero-sky, .ticker-inner { animation-duration: 120s !important; }
}