/* ==========================================================================
   FJ2601 · 无人机世界技能大赛班
   视觉语言：飞行手册 × 地面站 HUD × 工程贴纸
   ========================================================================== */

@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo.woff2?v=1884301a00") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jbmono.woff2?v=a42ca6efb5") format("woff2");
  font-weight: 100 800;
  font-display: swap;
}
@font-face {
  font-family: "Noto Sans SC";
  src: url("../fonts/noto-sc-subset.woff2?v=5a29822ed7") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --paper: #efece4;
  --paper-2: #e6e2d7;
  --card: #f8f6f1;
  --ink: #10152a;
  --ink-2: #434a60;
  --ink-3: #7a8196;
  --line: rgba(16, 21, 42, .16);
  --grid: rgba(16, 21, 42, .055);
  --sh: #10152a;

  --blue: #2448e0;
  --blue-2: #1733b0;
  --blue-soft: #dce3fb;
  --orange: #ff5b1f;
  --orange-2: #e44a10;
  --yellow: #ffc83a;
  --green: #16a36b;
  --red: #e0303a;
  --night: #060a18;
  --night-2: #0b1330;
  --moon: #edebe4;
  --gold: #e8b53a;
  --gold-2: #b8841c;

  --grain: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.06  0 0 0 0 0.08  0 0 0 0 0.16  0.34 0 0 0 -0.1'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");

  --f-display: "Archivo", "Noto Sans SC", system-ui, sans-serif;
  --f-cn: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, "Noto Sans SC", monospace;

  --ease: cubic-bezier(.2, .7, .2, 1);
  --ease-io: cubic-bezier(.7, 0, .2, 1);
  --nav-h: 60px;
  color-scheme: light;
}

/* 夜航模式 */
:root[data-theme="dark"] {
  --paper: #0b1022;
  --paper-2: #11172e;
  --card: #121936;
  --ink: #e9e6dd;
  --ink-2: #aeb3c4;
  --ink-3: #7c8299;
  --line: rgba(233, 230, 221, .16);
  --grid: rgba(233, 230, 221, .045);
  --sh: #02040b;
  --blue: #5b7bff;
  --blue-soft: #1b2550;
  --grain: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0.22 0 0 0 -0.08'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0b1022;
    --paper-2: #11172e;
    --card: #121936;
    --ink: #e9e6dd;
    --ink-2: #aeb3c4;
    --ink-3: #7c8299;
    --line: rgba(233, 230, 221, .16);
    --grid: rgba(233, 230, 221, .045);
    --sh: #02040b;
    --blue: #5b7bff;
    --blue-soft: #1b2550;
    --grain: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1  0 0 0 0 1  0 0 0 0 1  0.22 0 0 0 -0.08'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
    color-scheme: dark;
  }
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: var(--nav-h); }
html.smooth { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-cn);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color .4s, color .4s;
}
img { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
a { color: inherit; }
h1, h2, h3, p, dl, dd, figure, blockquote { margin: 0; }
p { text-wrap: pretty; }
::selection { background: var(--orange); color: #fff; }
:focus-visible { outline: 2px dashed var(--orange); outline-offset: 3px; border-radius: 4px; }

.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.dim { color: var(--ink-3); }
.ta-r { text-align: right; }
.sr-only { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: fixed; left: 12px; top: -60px; z-index: 300; background: var(--orange); color: #fff; padding: 10px 14px; border-radius: 8px; text-decoration: none; }
.skip:focus { top: 12px; }
.wrap { max-width: 1240px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); }

.rec-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--red); margin-right: 8px; vertical-align: 1px; animation: blink 1.2s steps(2, jump-none) infinite; }
@keyframes blink { 50% { opacity: .15; } }
@keyframes spin { to { transform: rotate(360deg); } }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font: 700 15px/1 var(--f-cn); letter-spacing: .02em;
  padding: 15px 22px; border-radius: 999px;
  border: 1.5px solid currentColor; text-decoration: none;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background-color .25s, color .25s;
}
.btn--solid { background: var(--orange); border-color: var(--orange); color: #fff; box-shadow: 0 0 0 0 transparent; }
.btn--solid:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--sh); }
.btn--ghost:hover { background: rgba(255, 255, 255, .1); transform: translate(-2px, -2px); }

/* ---------- 开机自检（首屏中央的自检面板） ---------- */
.boot {
  position: absolute; z-index: 5; left: 50%; top: 34%;
  width: min(440px, calc(100% - 32px));
  transform: translate(-50%, -50%);
  padding: 18px 20px 14px;
  background: rgba(6, 10, 24, .74); color: #cfdcff;
  border: 1px solid rgba(237, 235, 228, .18); border-radius: 14px;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  font-family: var(--f-mono); font-size: 12px;
  cursor: pointer;
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
html:not(.js) .boot, .boot.is-gone { display: none; }
.boot.is-done { opacity: 0; transform: translate(-50%, -62%); pointer-events: none; }
.boot__logo { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .14em; color: #fff; margin-bottom: 12px; }
.boot__quad { width: 26px; height: 26px; color: #fff; animation: spin 6s linear infinite; }
.boot__log { list-style: none; padding: 0; margin: 0 0 12px; min-height: 160px; line-height: 1.9; }
.boot__log li { display: flex; justify-content: space-between; gap: 12px; opacity: .92; }
.boot__log li b { color: #42e29b; font-weight: 700; }
.boot__log li b.w { color: var(--yellow); }
.boot__bar { height: 3px; background: rgba(255, 255, 255, .12); border-radius: 3px; overflow: hidden; }
.boot__bar i { display: block; height: 100%; width: 0; background: var(--orange); transition: width .25s linear; }
.boot__skip { margin-top: 10px; opacity: .45; font-size: 10px; letter-spacing: .1em; }

/* ---------- 伴飞无人机 ---------- */
.buddy {
  --b-arm: #10152a; --b-hull: #2448e0; --b-prop: #10152a; --b-disc: rgba(255, 91, 31, .16);
  position: fixed; left: 0; top: 0; z-index: 90;
  width: 44px; height: 44px; margin: -22px 0 0 -22px;
  pointer-events: none; opacity: 0; transition: opacity .35s;
  will-change: transform;
}
.buddy.is-on { opacity: 1; }
.buddy.on-dark, :root[data-theme="dark"] .buddy { --b-arm: #e9e6dd; --b-hull: #5b7bff; --b-prop: #e9e6dd; --b-disc: rgba(255, 91, 31, .22); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .buddy { --b-arm: #e9e6dd; --b-hull: #5b7bff; --b-prop: #e9e6dd; } }
.buddy__body { position: relative; width: 100%; height: 100%; overflow: visible; transform: var(--tilt, none); transition: transform .08s linear; }
.buddy__arms { stroke: var(--b-arm); stroke-width: 8; stroke-linecap: round; fill: none; }
.buddy__disc { fill: var(--b-disc); stroke: var(--b-arm); stroke-opacity: .3; stroke-width: 1.5; }
.buddy .spin { fill: var(--b-prop); animation: spin .11s linear infinite; transform-box: fill-box; transform-origin: center; }
.buddy .spin--ccw { animation-direction: reverse; }
.buddy__hull { fill: var(--b-hull); stroke: var(--b-arm); stroke-width: 3; }
.buddy__led { fill: var(--orange); animation: blink .9s steps(2, jump-none) infinite; }
.buddy__shadow { position: absolute; inset: 6px; border-radius: 50%; background: rgba(6, 10, 24, .28); filter: blur(7px); transform: translate(var(--sx, 14px), var(--sy, 24px)); }

/* ---------- 顶部导航 ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  height: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  display: flex; align-items: center; gap: clamp(10px, 2vw, 26px);
  padding-inline: clamp(14px, 2.4vw, 28px);
  color: var(--ink);
  border-bottom: 1px solid transparent;
  transition: background-color .35s, color .35s, border-color .35s, transform .35s var(--ease);
}
.nav.on-dark { color: var(--moon); }
.nav.is-solid {
  background: color-mix(in srgb, var(--paper) 84%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  backdrop-filter: blur(14px) saturate(1.3);
  border-bottom-color: var(--line);
}
.nav.on-night {
  color: var(--moon);
  background: rgba(6, 10, 24, .78);
  border-bottom-color: rgba(237, 235, 228, .12);
}
.nav__brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 800 17px/1 var(--f-display); font-stretch: 125%; letter-spacing: .02em; }
.nav__brand svg { width: 28px; height: 28px; transition: transform .6s var(--ease); }
.nav__brand:hover svg { transform: rotate(90deg); }
.nav__links { display: flex; gap: 2px; margin-right: auto; }
.nav__links a {
  position: relative; text-decoration: none; font-size: 14px; font-weight: 500;
  padding: 8px 12px; border-radius: 8px; transition: background-color .2s;
}
.nav__links a i { font: 500 10px var(--f-mono); font-style: normal; opacity: .5; margin-right: 5px; }
.nav__links a:hover { background: color-mix(in srgb, currentColor 10%, transparent); }
.nav__links a.is-cur::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 2px; background: var(--orange); border-radius: 2px; }
.nav__tele { display: flex; gap: 6px; }
.chip {
  display: inline-flex; align-items: baseline; gap: 5px;
  font: 500 11px/1 var(--f-mono); font-variant-numeric: tabular-nums;
  padding: 7px 9px; border-radius: 6px;
  border: 1px solid color-mix(in srgb, currentColor 22%, transparent);
  white-space: nowrap;
}
.chip i { font-style: normal; opacity: .55; }
.chip b { font-weight: 700; min-width: 3ch; text-align: right; }
.chip.is-warn { border-color: var(--orange); color: var(--orange); }
.nav__tools { display: flex; align-items: center; gap: 6px; }
.tool {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; padding: 7px 11px; border-radius: 999px;
  border: 1px solid color-mix(in srgb, currentColor 22%, transparent);
  transition: background-color .2s, border-color .2s;
}
.tool:hover { background: color-mix(in srgb, currentColor 10%, transparent); }
.tool__dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; opacity: .35; transition: background-color .2s, opacity .2s; }
.tool[aria-pressed="true"] .tool__dot { background: #42e29b; opacity: 1; box-shadow: 0 0 8px #42e29b; }
.tool__moon { width: 10px; height: 10px; border-radius: 50%; box-shadow: inset -3px -1px 0 0 currentColor; opacity: .7; }
.tool[aria-pressed="true"] .tool__moon { box-shadow: inset -3px -1px 0 0 var(--yellow); opacity: 1; }
.nav__menu { display: none; width: 40px; height: 40px; border-radius: 10px; position: relative; }
.nav__menu i { position: absolute; left: 11px; right: 11px; height: 2px; background: currentColor; border-radius: 2px; transition: transform .3s var(--ease); }
.nav__menu i:first-child { top: 15px; }
.nav__menu i:last-child { top: 23px; }
.nav.menu-open .nav__menu i:first-child { transform: translateY(4px) rotate(45deg); }
.nav.menu-open .nav__menu i:last-child { transform: translateY(-4px) rotate(-45deg); }

@media (max-width: 1100px) {
  .chip--hide-sm { display: none; }
}
@media (max-width: 900px) {
  .nav__menu { display: block; }
  .nav__links {
    position: fixed; left: 0; right: 0; top: calc(var(--nav-h) + env(safe-area-inset-top, 0px));
    flex-direction: column; gap: 0; padding: 8px 16px 20px;
    background: var(--paper); color: var(--ink);
    border-bottom: 1.5px solid var(--ink);
    transform: translateY(-120%); visibility: hidden;
    transition: transform .45s var(--ease), visibility 0s .45s;
  }
  .nav.menu-open .nav__links { transform: none; visibility: visible; transition: transform .45s var(--ease); }
  .nav__links a { font-size: 22px; font-weight: 900; padding: 12px 4px; border-bottom: 1px dashed var(--line); border-radius: 0; }
  .nav__links a i { font-size: 12px; }
  .nav__tele { margin-left: auto; }
  #buddyToggle { display: none; }
}
@media (max-width: 420px) {
  .tool { padding: 7px 9px; }
}

/* ---------- 00 · HERO ---------- */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  height: 100vh; height: 100svh; min-height: 640px;
  color: var(--moon);
  background:
    radial-gradient(90% 60% at 50% 105%, rgba(255, 91, 31, .16), transparent 60%),
    radial-gradient(130% 90% at 50% 115%, #1a2a6c 0%, #0b1330 42%, #060a18 78%);
}
.hero__stars, .hero__show { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero__stars { z-index: 0; }
.hero__hills { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: 32vh; min-height: 190px; z-index: 1; will-change: transform; }
.hero__hills .h1 { fill: #13215a; opacity: .75; }
.hero__hills .h2 { fill: #0b1540; }
.hero__hills .h3 { fill: #050a1c; }
.hero__show { z-index: 2; }

.hud { position: absolute; inset: 0; z-index: 3; pointer-events: none; font-family: var(--f-mono); font-size: 11px; letter-spacing: .08em; }
.hud__c { position: absolute; width: 26px; height: 26px; border: 0 solid rgba(237, 235, 228, .55); }
.hud__c--tl { top: calc(var(--nav-h) + 14px); left: 18px; border-top-width: 2px; border-left-width: 2px; }
.hud__c--tr { top: calc(var(--nav-h) + 14px); right: 18px; border-top-width: 2px; border-right-width: 2px; }
.hud__c--bl { bottom: 18px; left: 18px; border-bottom-width: 2px; border-left-width: 2px; }
.hud__c--br { bottom: 18px; right: 18px; border-bottom-width: 2px; border-right-width: 2px; }
.hud__rec { position: absolute; top: calc(var(--nav-h) + 22px); left: 54px; opacity: .8; }
.hud__rec b { margin-left: 8px; font-weight: 500; }

.tape { position: absolute; top: 50%; width: 64px; height: 38vh; transform: translateY(-50%); overflow: hidden; opacity: .75;
  -webkit-mask-image: linear-gradient(transparent, #000 22%, #000 78%, transparent);
  mask-image: linear-gradient(transparent, #000 22%, #000 78%, transparent); }
.tape-l { left: 26px; }
.tape-r { right: 26px; }
.tape__ticks { position: absolute; left: 0; right: 0; top: 50%; will-change: transform; }
.tape__ticks span { position: absolute; left: 0; right: 0; height: 0; border-top: 1px solid rgba(237, 235, 228, .5); font-size: 10px; }
.tape-l .tape__ticks span { width: 12px; }
.tape-l .tape__ticks span.maj { width: 20px; }
.tape-l .tape__ticks span.maj::after { content: attr(data-v); position: absolute; left: 26px; top: -7px; }
.tape-r .tape__ticks span { left: auto; width: 12px; }
.tape-r .tape__ticks span.maj { width: 20px; }
.tape-r .tape__ticks span.maj::after { content: attr(data-v); position: absolute; right: 26px; top: -7px; }
.tape__val { position: absolute; top: 50%; transform: translateY(-50%); padding: 4px 6px; border: 1px solid var(--orange); background: rgba(6, 10, 24, .8); color: #fff; font-size: 12px; min-width: 40px; text-align: center; }
.tape-l .tape__val { left: 0; }
.tape-r .tape__val { right: 0; }
.tape__lbl { position: absolute; bottom: 18%; font-size: 10px; opacity: .6; }
.tape-l .tape__lbl { left: 0; }
.tape-r .tape__lbl { right: 0; }

.hero__copy {
  position: absolute; z-index: 4;
  left: clamp(18px, 6vw, 96px); bottom: clamp(56px, 10vh, 120px);
  max-width: min(1100px, 68vw);
}
.news {
  display: inline-flex; align-items: center; gap: 10px; max-width: 100%;
  margin-bottom: 16px; padding: 5px 14px 5px 5px;
  border-radius: 999px; text-decoration: none;
  font-size: 13px; font-weight: 700; line-height: 1.35; color: #fff2cf;
  background: rgba(232, 181, 58, .14); border: 1px solid rgba(232, 181, 58, .55);
  transition: background-color .25s, transform .25s var(--ease);
}
.news:hover { background: rgba(232, 181, 58, .26); transform: translateY(-1px); }
.news__tag { flex: none; padding: 3px 9px; border-radius: 999px; background: var(--gold); color: #1a1204; font-size: 12px; font-weight: 900; letter-spacing: .08em; }
.news__go { flex: none; transition: transform .25s var(--ease); }
.news:hover .news__go { transform: translateX(3px); }
.hero__eyebrow { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 12px; font: 500 13px/1.3 var(--f-mono); letter-spacing: .06em; opacity: .92; margin-bottom: 14px; }
.pill { display: inline-block; padding: 5px 9px; border-radius: 5px; background: var(--orange); color: #fff; font-weight: 700; letter-spacing: .1em; }
.hero__title {
  font: 900 clamp(40px, min(7vw, 10vh), 104px)/1.04 var(--f-cn);
  letter-spacing: -.02em;
  text-wrap: balance;
  text-shadow: 0 0 40px rgba(6, 10, 24, .8);
}
.br-sm { display: none; }
.hero__motto { margin-top: 16px; font-size: clamp(17px, 1.7vw, 22px); font-weight: 700; }
.hero__motto span { display: block; font-weight: 400; font-size: .82em; opacity: .7; margin-top: 2px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.formation {
  position: absolute; z-index: 4;
  right: clamp(18px, 5vw, 96px); bottom: clamp(56px, 10vh, 120px);
  width: 250px; padding: 14px 16px;
  font: 500 11px/1.4 var(--f-mono); letter-spacing: .08em;
  border: 1px solid rgba(237, 235, 228, .25); border-radius: 12px;
  background: rgba(6, 10, 24, .45);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.formation__row { display: flex; justify-content: space-between; align-items: center; }
.formation__k { opacity: .6; }
.formation__no { font-size: 12px; }
.formation__name { font: 800 20px/1.2 var(--f-cn); letter-spacing: 0; margin: 8px 0 10px; }
.formation__name small { display: block; margin-top: 4px; font: 500 10px/1.3 var(--f-mono); letter-spacing: .14em; opacity: .55; }
.formation__prog { height: 2px; background: rgba(255, 255, 255, .15); margin-bottom: 10px; }
.formation__prog i { display: block; height: 100%; width: 0; background: var(--orange); }
.formation__next { font: 700 11px var(--f-mono); letter-spacing: .06em; padding: 5px 8px; border-radius: 5px; border: 1px solid rgba(237, 235, 228, .35); transition: background-color .2s; }
.formation__next:hover { background: rgba(255, 255, 255, .12); }

.hero__scroll { position: absolute; z-index: 4; left: 50%; bottom: 22px; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; text-decoration: none; font: 500 10px var(--f-mono); letter-spacing: .24em; opacity: .7; }
.hero__scroll { transition: opacity .6s .8s; }
.js .hero:not(.is-launched) .hero__scroll { opacity: 0; }
.hero__scroll i { width: 1px; height: 34px; background: linear-gradient(var(--moon), transparent); animation: drip 1.8s var(--ease) infinite; transform-origin: top; }
@keyframes drip { 0% { transform: scaleY(0); } 60% { transform: scaleY(1); opacity: 1; } 100% { transform: scaleY(1); opacity: 0; } }

@media (max-width: 900px) {
  .tape, .formation { display: none; }
  .hero__copy { max-width: none; right: 18px; }
  .hero__scroll { display: none; }
}
@media (max-width: 560px) {
  .br-sm { display: inline; }
  .hero__copy { bottom: 44px; }
  .hud__rec { left: 30px; font-size: 10px; }
  .hero__cta .btn { padding: 13px 18px; font-size: 14px; }
}

/* ---------- 通用 Section ---------- */
.sec {
  position: relative;
  padding: clamp(72px, 8.5vw, 124px) 0;
  background-color: var(--paper);
  background-image: var(--grain), linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 160px 160px, 32px 32px, 32px 32px;
  transition: background-color .4s;
}
.sec + .sec { border-top: 1px solid var(--line); }
.sec-head { margin-bottom: clamp(36px, 5vw, 64px); }
.sec-head__meta { display: flex; align-items: center; gap: 12px; font: 500 12px/1 var(--f-mono); letter-spacing: .14em; color: var(--ink-2); }
.sec-no { background: var(--ink); color: var(--paper); padding: 6px 8px; border-radius: 5px; font-weight: 700; }
.sec-line { flex: 1; height: 1px; background: var(--line); min-width: 24px; }
.sec-title { font: 900 clamp(38px, 6.2vw, 88px)/1.06 var(--f-cn); letter-spacing: -.028em; margin: 26px 0 18px; text-wrap: balance; }
.sec-title em {
  font-style: normal; color: var(--orange);
  background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 12' preserveAspectRatio='none'><path d='M2 8 Q 15 2 30 7 T 60 7 T 90 7 T 118 5' fill='none' stroke='%23ff5b1f' stroke-width='3' stroke-linecap='round'/></svg>") left bottom / 100% .22em no-repeat;
  padding-bottom: .12em;
}
.sec-lead { text-wrap: pretty; max-width: 640px; font-size: clamp(16px, 1.5vw, 19px); color: var(--ink-2); }
@media (max-width: 560px) { .sec-sheet { display: none; } }

.lead { text-wrap: pretty; font-size: clamp(19px, 2vw, 25px); line-height: 1.6; font-weight: 500; }
.lead strong { font-weight: 900; background: linear-gradient(transparent 62%, color-mix(in srgb, var(--orange) 38%, transparent) 62%); }
.lead--soft { color: var(--ink-2); font-size: clamp(16px, 1.6vw, 19px); margin-top: 18px; font-weight: 400; }

.tag { display: inline-block; font: 700 11px/1 var(--f-mono); letter-spacing: .1em; padding: 6px 8px; border-radius: 5px; }
.tag--o { background: var(--orange); color: #fff; }

/* 进场动画 */
.js [data-reveal] { transform: translateY(26px); transition: transform .9s var(--ease); }
.js [data-reveal].in { transform: none; }

/* ---------- 01 · 简报 ---------- */
.brief__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(28px, 5vw, 72px); align-items: start; }
.brief__lead { position: relative; padding-right: 20px; }
.badge-spin { position: relative; width: 150px; height: 150px; margin-top: 40px; }
.badge-spin > svg:first-child { width: 100%; height: 100%; animation: spin 22s linear infinite; }
.badge-spin text { font: 700 13.5px var(--f-mono); letter-spacing: .16em; fill: var(--ink); }
.badge-spin__core { position: absolute; inset: 42px; width: 66px; height: 66px; color: var(--blue); }

.dossier {
  position: relative; background: var(--card); border: 1.5px solid var(--ink); border-radius: 18px;
  box-shadow: 7px 7px 0 var(--sh); overflow: hidden;
}
.dossier__head { display: flex; justify-content: space-between; gap: 10px; padding: 12px 18px; background: var(--ink); color: var(--paper); font: 700 11px var(--f-mono); letter-spacing: .12em; }
.dossier__row { display: grid; grid-template-columns: 130px 1fr; gap: 12px; padding: 13px 18px; border-bottom: 1px dashed var(--line); align-items: baseline; }
.dossier__row:last-of-type { border-bottom: 0; padding-bottom: 20px; }
.dossier dt { font-size: 13px; color: var(--ink-2); }
.dossier dt i { display: block; font: 500 10px var(--f-mono); font-style: normal; letter-spacing: .1em; color: var(--ink-3); }
.dossier dd { font-weight: 700; font-size: 16px; line-height: 1.45; }
.dossier dd.mono { font-size: 20px; letter-spacing: .06em; }
.status-dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--green); margin-right: 8px; box-shadow: 0 0 0 0 rgba(22, 163, 107, .6); animation: pulse 1.8s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(22, 163, 107, 0); } 100% { box-shadow: 0 0 0 0 rgba(22, 163, 107, 0); } }
.stamp {
  position: absolute; right: 16px; bottom: 58px;
  display: grid; place-items: center; text-align: center;
  width: 124px; height: 124px; border-radius: 50%;
  border: 3px double var(--orange); color: var(--orange);
  transform: rotate(-14deg); opacity: .85;
  font-family: var(--f-mono); pointer-events: none;
}
.stamp b { font-size: 19px; letter-spacing: .1em; line-height: 1; margin-top: 30px; }
.stamp span { font: 900 14px var(--f-cn); margin-bottom: 30px; }
.js .dossier.in .stamp { animation: stampIn .5s .5s var(--ease) both; }
@keyframes stampIn { 0% { opacity: 0; transform: rotate(-30deg) scale(2.2); } 70% { opacity: .9; transform: rotate(-12deg) scale(.94); } 100% { opacity: .85; transform: rotate(-14deg) scale(1); } }

.brief__row2 { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(20px, 3vw, 40px); margin-top: clamp(48px, 7vw, 96px); align-items: stretch; }
.feature { position: relative; border: 1.5px solid var(--ink); border-radius: 18px; overflow: hidden; background: var(--ink); min-height: 320px; box-shadow: 7px 7px 0 var(--sh); }
.feature img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.feature__scan { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 0 46%, rgba(66, 226, 155, .22) 49.5%, rgba(66, 226, 155, .5) 50%, transparent 50.5%); background-size: 100% 220%; animation: scan 5s linear infinite; mix-blend-mode: screen; pointer-events: none; }
@keyframes scan { from { background-position: 0 100%; } to { background-position: 0 -120%; } }
.feature figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 60px 20px 18px; color: #fff; background: linear-gradient(transparent, rgba(6, 10, 24, .85)); display: flex; flex-direction: column; align-items: flex-start; gap: 6px; }
.feature figcaption b { font-size: clamp(18px, 2vw, 24px); font-weight: 900; }
.feature figcaption .dim { color: rgba(255, 255, 255, .7); font-size: 11px; letter-spacing: .06em; }

.checklist { background: var(--card); border: 1.5px solid var(--ink); border-radius: 18px; padding: 22px; box-shadow: 7px 7px 0 var(--sh); display: flex; flex-direction: column; transition: border-color .4s, box-shadow .4s; }
.checklist__head .mono { font-size: 11px; letter-spacing: .14em; color: var(--ink-3); }
.checklist__head h3 { font-size: 26px; font-weight: 900; margin: 4px 0 2px; }
.checklist__head p { color: var(--ink-2); font-size: 14px; }
.checklist ul { list-style: none; padding: 0; margin: 16px 0; flex: 1; }
.checklist li { border-bottom: 1px dashed var(--line); }
.checklist label { position: relative; display: flex; align-items: center; gap: 12px; padding: 10px 2px; cursor: pointer; font-size: 15px; user-select: none; }
.checklist input { position: absolute; opacity: 0; pointer-events: none; }
.checklist .box { flex: none; width: 22px; height: 22px; border: 1.5px solid var(--ink); border-radius: 6px; position: relative; transition: background-color .2s, transform .2s var(--ease); }
.checklist .box::after { content: ""; position: absolute; left: 6px; top: 2px; width: 6px; height: 11px; border: solid #fff; border-width: 0 2.5px 2.5px 0; transform: rotate(45deg) scale(0); transition: transform .25s var(--ease); }
.checklist input:checked + .box { background: var(--green); border-color: var(--green); transform: scale(1.08); }
.checklist input:checked + .box::after { transform: rotate(45deg) scale(1); }
.checklist input:checked ~ span:last-child { color: var(--ink-3); text-decoration: line-through; text-decoration-color: var(--green); }
.checklist input:focus-visible + .box { outline: 2px dashed var(--orange); outline-offset: 3px; }
.checklist__foot { display: flex; align-items: center; gap: 14px; font-size: 12px; }
.checklist__meter { flex: 1; height: 8px; border-radius: 8px; background: var(--paper-2); border: 1px solid var(--line); overflow: hidden; }
.checklist__meter i { display: block; height: 100%; width: 0; background: repeating-linear-gradient(-45deg, var(--orange) 0 8px, var(--orange-2) 8px 16px); transition: width .4s var(--ease); }
.checklist.is-go { border-color: var(--green); box-shadow: 7px 7px 0 var(--green); }
.checklist.is-go .checklist__meter i { background: var(--green); }
.checklist.is-go #checkState { color: var(--green); font-weight: 700; }

.confetti { position: fixed; z-index: 95; pointer-events: none; width: 20px; height: 20px; left: 0; top: 0; }

@media (max-width: 900px) {
  .brief__grid, .brief__row2 { grid-template-columns: 1fr; }
  .badge-spin { position: absolute; right: 0; top: -150px; width: 110px; height: 110px; margin: 0; }
  .badge-spin__core { inset: 31px; width: 48px; height: 48px; }
  .feature { aspect-ratio: 4 / 3; min-height: 0; }
}
@media (max-width: 560px) {
  .badge-spin { display: none; }
  .dossier__row { grid-template-columns: 96px 1fr; padding: 12px 14px; }
  .stamp { width: 96px; height: 96px; right: 10px; top: 58px; bottom: auto; }
  .stamp b { font-size: 15px; margin-top: 24px; }
  .stamp span { font-size: 12px; margin-bottom: 24px; }
}

/* ---------- 胶带分隔 ---------- */
.tapes { position: relative; height: 190px; overflow: hidden; background: var(--paper); border-top: 1px solid var(--line); }
.tapeband { position: absolute; left: -5%; width: 110%; top: 50%; padding: 14px 0; overflow: hidden; }
.tapeband--o { background: var(--orange); color: #fff; transform: translateY(-50%) rotate(-3.5deg); box-shadow: 0 6px 0 rgba(0, 0, 0, .12); }
.tapeband--b { background: var(--ink); color: var(--paper); transform: translateY(-50%) rotate(2.5deg); }
.tapeband::before, .tapeband::after { content: ""; position: absolute; left: 0; right: 0; height: 0; border-top: 1.5px dashed currentColor; opacity: .45; }
.tapeband::before { top: 6px; }
.tapeband::after { bottom: 6px; }
.tapeband__track { display: flex; width: max-content; animation: marquee 38s linear infinite; }
.tapeband--b .tapeband__track { animation-direction: reverse; animation-duration: 46s; }
.tapeband__track span { font: 900 22px/1 var(--f-display); font-stretch: 112%; letter-spacing: .04em; white-space: nowrap; padding-right: .4em; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (max-width: 560px) {
  .tapes { height: 130px; }
  .tapeband { padding: 10px 0; }
  .tapeband__track span { font-size: 15px; }
}

/* ---------- 02 · 技能旋翼 ---------- */
.rotors__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(24px, 4vw, 64px); align-items: center; }
.hexa { position: relative; }
.hexa__svg { width: 100%; max-width: 620px; margin: 0 auto; display: block; overflow: visible; }
.hexa__ring { fill: none; stroke: var(--line); stroke-width: 1.5; }
.hexa__ring--dash { stroke-dasharray: 3 10; }
.hexa__plate { stroke: none; }
.hexa__plate--line { fill: none; stroke: var(--ink); stroke-width: 3; }
.hexa__fc { fill: var(--blue); stroke: var(--ink); stroke-width: 3; }
.hexa__fc-t { fill: #fff; font: 900 26px var(--f-display); text-anchor: middle; }
.hexa__fc-s { fill: rgba(255, 255, 255, .75); font: 700 11px var(--f-mono); text-anchor: middle; letter-spacing: .08em; }
.hexa__led { fill: #42e29b; animation: blink 1s steps(2, jump-none) infinite; }

.rotor { cursor: pointer; }
.rotor__arm { stroke: var(--ink); stroke-width: 14; stroke-linecap: round; transition: stroke .3s; }
.rotor__arm-in { stroke: var(--paper); stroke-width: 4; stroke-linecap: round; stroke-dasharray: 2 9; transition: stroke .3s; }
.rotor__ring { fill: none; stroke: var(--ink); stroke-opacity: .25; stroke-width: 1.5; stroke-dasharray: 4 7; transition: stroke .3s, stroke-opacity .3s; }
.rotor__disc { fill: url(#discGrad); }
.rotor__blade { fill: var(--ink); }
.rotor__motor { fill: var(--card); stroke: var(--ink); stroke-width: 3; transition: fill .3s; }
.rotor__num { font: 700 17px var(--f-mono); text-anchor: middle; dominant-baseline: central; fill: var(--ink); transition: fill .3s; }
.rotor__label { font: 900 34px var(--f-cn); text-anchor: middle; fill: var(--ink); transition: fill .3s; }
.rotor__label-en { font: 600 13px var(--f-mono); text-anchor: middle; letter-spacing: .14em; fill: var(--ink-3); }
.rotor:hover .rotor__ring { stroke-opacity: .6; }
.rotor.is-on .rotor__arm { stroke: var(--orange); }
.rotor.is-on .rotor__ring { stroke: var(--orange); stroke-opacity: .9; }
.rotor.is-on .rotor__motor { fill: var(--orange); }
.rotor.is-on .rotor__num { fill: #fff; }
.rotor.is-on .rotor__label { fill: var(--orange); }

.rotor-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 16px; }
.rotor-tab {
  display: flex; align-items: center; gap: 8px; padding: 10px 12px;
  border: 1.5px solid var(--ink); border-radius: 10px; background: var(--card);
  font-size: 15px; font-weight: 700; text-align: left;
  transition: background-color .2s, color .2s, transform .2s var(--ease), box-shadow .2s var(--ease);
}
.rotor-tab i { font: 500 11px var(--f-mono); font-style: normal; opacity: .55; }
.rotor-tab:hover { transform: translate(-2px, -2px); box-shadow: 3px 3px 0 var(--sh); }
.rotor-tab[aria-selected="true"] { background: var(--orange); border-color: var(--orange); color: #fff; }
.rotor-tab[aria-selected="true"] i { opacity: .85; }

.rp { position: relative; background: var(--card); border: 1.5px solid var(--ink); border-radius: 18px; padding: 24px; box-shadow: 7px 7px 0 var(--sh); min-height: 300px; }
.rp__top { display: flex; justify-content: space-between; font-size: 11px; letter-spacing: .12em; color: var(--ink-3); }
.rp__rpm b { color: var(--ink); font-weight: 700; display: inline-block; min-width: 6ch; text-align: right; }
.rp__title { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 14px; font: 900 clamp(40px, 5vw, 60px)/1.1 var(--f-cn); margin: 14px 0 12px; letter-spacing: -.02em; }
.rp__title small { font: 700 14px var(--f-mono); letter-spacing: .16em; color: var(--orange); }
.rp__mod { font: 500 12px/1.4 var(--f-mono); letter-spacing: .04em; color: var(--ink-3); margin: -4px 0 10px; }
.rp__desc { font-size: 17px; color: var(--ink-2); min-height: 3.3em; }
.rp__tags { list-style: none; padding: 0; margin: 18px 0 22px; display: flex; flex-wrap: wrap; gap: 8px; }
.rp__tags li { font-size: 13px; padding: 5px 11px; border-radius: 999px; border: 1px solid var(--line); background: var(--paper); }
.rp__tags li::before { content: "#"; color: var(--orange); margin-right: 2px; font-family: var(--f-mono); }
.rp__gauge { height: 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--paper-2); overflow: hidden; }
.rp__gauge i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--blue), var(--orange)); }
.rp__item + .rp__item { margin-top: 24px; }
.js .rp__item + .rp__item { margin-top: 0; }
.rp__item.swap .rp__title, .rp__item.swap .rp__desc, .rp__item.swap .rp__tags { animation: rpIn .45s var(--ease); }
@keyframes rpIn { from { opacity: 0; transform: translateY(10px); } }

@media (max-width: 900px) {
  .rotors__grid { grid-template-columns: 1fr; }
  .hexa__svg { max-width: 460px; }
}
@media (max-width: 420px) {
  .rotor-tab { padding: 9px 8px; font-size: 14px; gap: 5px; }
}

/* ---------- 03 · 飞行日志 ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.filter {
  font-size: 14px; font-weight: 700; padding: 9px 15px; border-radius: 999px;
  border: 1.5px solid var(--ink); background: var(--card);
  transition: background-color .2s, color .2s, transform .2s var(--ease), box-shadow .2s var(--ease);
}
.filter i { font: 500 10px var(--f-mono); font-style: normal; letter-spacing: .08em; opacity: .55; margin-left: 4px; }
.filter:hover { transform: translate(-2px, -2px); box-shadow: 3px 3px 0 var(--sh); }
.filter.is-on { background: var(--ink); color: var(--paper); }

.grid-wrap { container-type: inline-size; }
.grid {
  --gap: 16px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap);
  grid-auto-rows: 186px;
  grid-auto-rows: calc((100cqi - 3 * var(--gap)) / 4 * 2 / 3 - var(--gap) / 2);
  grid-auto-flow: dense;
}
.tile { position: relative; grid-row: span 2; border: 1.5px solid var(--ink); border-radius: 14px; overflow: hidden; background: var(--night); }
.tile--hero { grid-column: span 4; grid-row: span 3; }
.tile--w, .tile--sq, .tile--stat { grid-column: span 2; }
.tile.is-hidden { display: none; }
.tile img { width: 100%; height: 100%; object-fit: cover; object-position: var(--pos, 50% 50%); transition: transform 1s var(--ease), filter .5s; }
.tile__btn { position: absolute; inset: 0; display: block; width: 100%; cursor: zoom-in; }
.tile__btn:focus-visible { outline-offset: -5px; outline-color: #fff; }
.tile:hover img, .tile__btn:focus-visible img { transform: scale(1.045); }

.tile__hud { position: absolute; inset: 0; pointer-events: none; font: 600 11px/1 var(--f-mono); letter-spacing: .1em; color: #fff; }
.br { position: absolute; width: 18px; height: 18px; border: 0 solid rgba(255, 255, 255, .85); transition: all .45s var(--ease); }
.br--tl { top: 12px; left: 12px; border-top-width: 2px; border-left-width: 2px; }
.br--tr { top: 12px; right: 12px; border-top-width: 2px; border-right-width: 2px; }
.br--bl { bottom: 12px; left: 12px; border-bottom-width: 2px; border-left-width: 2px; }
.br--br { bottom: 12px; right: 12px; border-bottom-width: 2px; border-right-width: 2px; }
.tile:hover .br, .tile__btn:focus-visible .br { border-color: var(--orange); width: 26px; height: 26px; }
.tile:hover .br--tl, .tile:hover .br--tr { top: 22px; }
.tile:hover .br--bl, .tile:hover .br--br { bottom: 22px; }
.tile:hover .br--tl, .tile:hover .br--bl { left: 22px; }
.tile:hover .br--tr, .tile:hover .br--br { right: 22px; }
.tile__id { position: absolute; top: 18px; left: 40px; padding: 3px 6px; background: rgba(6, 10, 24, .55); border-radius: 3px; }
.tile__lock { position: absolute; top: 18px; right: 40px; padding: 3px 6px; background: var(--orange); border-radius: 3px; opacity: 0; transform: translateY(-4px); transition: opacity .3s, transform .3s var(--ease); }
.tile:hover .tile__lock, .tile__btn:focus-visible .tile__lock { opacity: 1; transform: none; animation: blink .8s steps(2, jump-none) 3 .3s; }
.tile__x { position: absolute; left: 50%; top: 50%; width: 34px; height: 34px; margin: -17px 0 0 -17px; opacity: 0; transform: scale(1.8) rotate(45deg); transition: opacity .35s, transform .45s var(--ease); }
.tile__x::before, .tile__x::after { content: ""; position: absolute; background: var(--orange); }
.tile__x::before { left: 50%; top: 0; bottom: 0; width: 2px; margin-left: -1px; }
.tile__x::after { top: 50%; left: 0; right: 0; height: 2px; margin-top: -1px; }
.tile:hover .tile__x { opacity: 1; transform: none; }
.tile__cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 56px 22px 30px; background: linear-gradient(transparent, rgba(6, 10, 24, .82)); color: #fff; text-align: left; pointer-events: none; }
.tile__cap b { display: block; font: 800 16px/1.3 var(--f-cn); letter-spacing: 0; }
.tile__cap span { font: 500 10px var(--f-mono); letter-spacing: .14em; opacity: .7; }
.tile--hero .tile__cap b { font-size: clamp(18px, 2.2vw, 26px); }
.tile__hint { position: absolute; width: 0; height: 0; pointer-events: none; }
.tile__hint::before { content: ""; position: absolute; width: 64px; height: 64px; left: -32px; top: -32px; border: 2px solid var(--orange); border-radius: 50%; animation: ping 1.8s var(--ease) infinite; }
.tile__hint span { position: absolute; left: 40px; top: -12px; white-space: nowrap; font: 700 11px var(--f-mono); letter-spacing: .08em; background: var(--orange); color: #fff; padding: 5px 8px; border-radius: 4px; }
.tile__hint span::before { content: ""; position: absolute; right: 100%; top: 50%; width: 10px; height: 2px; background: var(--orange); }
@keyframes ping { 0% { transform: scale(.5); opacity: 1; } 100% { transform: scale(1.3); opacity: 0; } }

.tile--stat { background: var(--blue); color: #fff; border-color: var(--ink); }
.stat { position: absolute; inset: 0; padding: clamp(16px, 2vw, 26px); display: flex; flex-direction: column; }
.stat__head { font-size: 11px; letter-spacing: .12em; opacity: .9; }
.stat__list { list-style: none; padding: 0; margin: auto 0; }
.stat__list li { display: flex; align-items: baseline; gap: 10px; padding: 7px 0; font-size: 15px; }
.stat__list li::after { content: ""; order: 2; flex: 1; border-bottom: 1.5px dotted rgba(255, 255, 255, .45); transform: translateY(-4px); }
.stat__list li span { order: 1; }
.stat__list li b { order: 3; font: 800 clamp(22px, 2.4vw, 30px)/1 var(--f-display); font-stretch: 115%; }
.stat__list li b i { font: 500 12px var(--f-cn); font-style: normal; opacity: .75; margin-left: 3px; }
.stat__foot { font-size: 12px; opacity: .85; border-top: 1px solid rgba(255, 255, 255, .25); padding-top: 12px; }

@media (max-width: 760px) {
  .grid {
    --gap: 10px;
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 120px;
    grid-auto-rows: calc((100cqi - var(--gap)) / 2 * 2 / 3 - var(--gap) / 2);
  }
  .tile--hero { grid-column: span 2; grid-row: span 2; }
  .tile--sq, .tile--stat { grid-column: span 1; }
  .tile__cap { padding: 36px 10px 10px; }
  .tile__cap b { font-size: 13px; }
  .tile__cap span { font-size: 9px; }
  .tile__id { left: 12px; top: 12px; font-size: 9px; }
  .br { display: none; }
  .tile__lock { display: none; }
  .stat { padding: 12px 12px 10px; }
  .stat__head { font-size: 9px; letter-spacing: .06em; }
  .stat__head .mono { display: inline; }
  .stat__list li { font-size: 11px; padding: 3px 0; gap: 4px; }
  .stat__list li::after { transform: translateY(-3px); }
  .stat__list li b { font-size: 16px; }
  .stat__list li b i { font-size: 9px; margin-left: 1px; }
  .stat__foot { font-size: 9px; padding-top: 8px; line-height: 1.4; }
  .tile__hint span { font-size: 9px; left: 30px; }
  .tile__hint::before { width: 44px; height: 44px; left: -22px; top: -22px; }
}

/* ---------- 04 · 领航员 ---------- */
.captain__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 88px); align-items: center; }
.license-wrap { perspective: 1100px; }
.license {
  --rx: 0deg; --ry: 0deg; --mx: 50%; --my: 50%;
  position: relative; width: 100%; max-width: 540px; aspect-ratio: 1.586;
  padding: clamp(16px, 2.4vw, 26px);
  border-radius: 22px; color: #fff; overflow: hidden;
  display: flex; flex-direction: column;
  background:
    repeating-radial-gradient(circle at 110% -10%, rgba(255, 255, 255, .06) 0 2px, transparent 2px 9px),
    linear-gradient(135deg, #2a4cf0 0%, #1733b0 55%, #0c1a6a 100%);
  border: 1.5px solid #0a1030;
  box-shadow: 0 30px 60px -20px rgba(16, 21, 42, .55), 8px 8px 0 var(--sh);
  transform: rotateX(var(--rx)) rotateY(var(--ry));
  transform-style: preserve-3d;
  transition: transform .5s var(--ease);
}
.license.is-tilting { transition: transform .08s linear; }
.license__sheen {
  position: absolute; inset: 0; pointer-events: none; mix-blend-mode: color-dodge; opacity: .55;
  background:
    radial-gradient(circle at var(--mx) var(--my), rgba(255, 255, 255, .55), transparent 42%),
    conic-gradient(from 120deg at var(--mx) var(--my), #ff5b1f33, #ffc83a33, #42e29b33, #5b7bff44, #ff5bd833, #ff5b1f33);
}
.license__top { display: flex; justify-content: space-between; align-items: center; font: 700 12px var(--f-mono); letter-spacing: .12em; }
.license__org { font: 900 15px var(--f-cn); letter-spacing: .06em; }
.license__body { display: flex; gap: clamp(12px, 2vw, 22px); margin: clamp(10px, 1.8vw, 18px) 0 auto; min-height: 0; flex: 1; }
.license__photo { flex: none; width: 34%; border-radius: 10px; overflow: hidden; border: 2px solid rgba(255, 255, 255, .7); background: #0c1a6a; }
.license__photo img { width: 100%; height: 100%; object-fit: cover; object-position: 32% 62%; }
.license__fields { display: grid; gap: clamp(3px, .8vw, 8px); align-content: start; }
.license__fields dt { font: 500 9px var(--f-mono); letter-spacing: .14em; opacity: .65; }
.license__fields dd { font-size: clamp(13px, 1.5vw, 17px); font-weight: 800; line-height: 1.25; }
.license__foot { display: flex; align-items: center; gap: 12px; margin-top: clamp(8px, 1.4vw, 14px); font-size: clamp(9px, 1vw, 11px); letter-spacing: .12em; opacity: .85; overflow: hidden; white-space: nowrap; }
.license__chip { flex: none; width: 40px; height: 30px; border-radius: 6px; background: linear-gradient(135deg, #f7d77a, #c79a2e 60%, #f2d47b); box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .25); position: relative; }
.license__chip::before { content: ""; position: absolute; inset: 7px 5px; border: 1px solid rgba(0, 0, 0, .3); border-radius: 3px; }
.license-wrap { position: relative; padding-bottom: 30px; }
.license-wrap::after { content: "* 纯属玩梗，不具任何法律效力"; display: block; margin-top: 18px; font: 500 12px var(--f-mono); color: var(--ink-3); }

.quote { position: relative; padding-top: 74px; }
.quote::before { content: "“"; position: absolute; top: -34px; left: -10px; font: 900 160px/1 var(--f-display); color: var(--orange); opacity: .9; }
.quote p { position: relative; font: 900 clamp(30px, 3.8vw, 52px)/1.2 var(--f-cn); letter-spacing: -.02em; }
.quote footer { margin-top: 14px; font: 500 13px var(--f-mono); letter-spacing: .08em; color: var(--ink-3); }
.captain__copy .lead--soft { margin-top: 26px; max-width: 520px; }
.signal { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 28px; padding: 12px 16px; border: 1.5px solid var(--ink); border-radius: 12px; background: var(--card); width: fit-content; font-size: 12px; box-shadow: 4px 4px 0 var(--sh); }
.signal__bars { display: inline-flex; align-items: flex-end; gap: 3px; height: 18px; }
.signal__bars i { width: 5px; background: var(--green); border-radius: 1px; animation: bar 2.4s ease-in-out infinite; }
.signal__bars i:nth-child(1) { height: 20%; }
.signal__bars i:nth-child(2) { height: 40%; animation-delay: .1s; }
.signal__bars i:nth-child(3) { height: 60%; animation-delay: .2s; }
.signal__bars i:nth-child(4) { height: 80%; animation-delay: .3s; }
.signal__bars i:nth-child(5) { height: 100%; animation-delay: .4s; }
@keyframes bar { 50% { opacity: .35; } }

@media (max-width: 900px) {
  .captain__grid { grid-template-columns: 1fr; }
  .license { margin: 0 auto; }
}
@media (max-width: 560px) {
  .license { aspect-ratio: auto; }
  .license__body { margin-bottom: 4px; }
  .license__photo { width: 38%; aspect-ratio: 3 / 4; align-self: start; }
}

/* ---------- 金牌航迹 ---------- */
.gold {
  position: relative; overflow: hidden; isolation: isolate;
  display: grid; grid-template-columns: 230px 1fr; align-items: center; gap: clamp(20px, 4vw, 52px);
  margin-bottom: clamp(48px, 7vw, 88px);
  padding: clamp(22px, 4vw, 44px);
  border: 1.5px solid var(--ink); border-radius: 22px;
  color: var(--moon);
  background:
    radial-gradient(60% 90% at 0% 0%, rgba(232, 181, 58, .22), transparent 60%),
    linear-gradient(140deg, #0f1a45 0%, #0b1330 50%, #060a18 100%);
  box-shadow: 9px 9px 0 var(--gold-2);
}
.gold::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: .5;
  background: linear-gradient(rgba(237, 235, 228, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(237, 235, 228, .05) 1px, transparent 1px);
  background-size: 32px 32px; }
.gold__medal { position: relative; width: 200px; height: 236px; justify-self: center; }
.ribbon { position: absolute; top: 0; width: 54px; height: 124px; transform-origin: top center; clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 86%, 0 100%); }
.ribbon--l { left: 44px; background: linear-gradient(#3a5cf0, #1733b0); transform: rotate(17deg); }
.ribbon--r { right: 44px; background: linear-gradient(#ff7a45, #e44a10); transform: rotate(-17deg); }
.medal {
  position: absolute; left: 50%; bottom: 0; width: 168px; height: 168px; margin-left: -84px;
  display: grid; place-content: center; justify-items: center; text-align: center;
  border-radius: 50%; overflow: hidden; color: #3a2604;
  background: radial-gradient(circle at 34% 28%, #fff4c8 0%, #f3cf62 22%, #d8a12c 56%, #9a6912 100%);
  box-shadow: inset 0 0 0 6px rgba(255, 255, 255, .22), inset 0 0 0 12px rgba(120, 80, 10, .3), 0 18px 40px rgba(0, 0, 0, .45);
}
.medal::before { content: ""; position: absolute; inset: 20px; border-radius: 50%; border: 1.5px dashed rgba(90, 60, 8, .45); }
.medal::after { content: ""; position: absolute; inset: -40%; background: linear-gradient(115deg, transparent 42%, rgba(255, 255, 255, .55) 50%, transparent 58%); transform: translateX(-60%); animation: shine 4.5s ease-in-out infinite; }
@keyframes shine { 0%, 55% { transform: translateX(-60%); } 85%, 100% { transform: translateX(60%); } }
.medal__no { font: 900 56px/1 var(--f-display); font-stretch: 125%; letter-spacing: -.03em; }
.medal__t { font: 700 9px var(--f-mono); letter-spacing: .2em; margin-top: 6px; }
.medal__g { font: 900 14px/1 var(--f-display); font-stretch: 125%; letter-spacing: .32em; margin-top: 4px; }
.gold__k { font-size: 11px; letter-spacing: .16em; color: var(--gold); }
.gold__title { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 16px; margin: 10px 0 8px; font: 900 clamp(44px, 6vw, 76px)/1 var(--f-cn); letter-spacing: -.02em; }
.gold__title small { font: 500 14px/1.4 var(--f-cn); letter-spacing: 0; opacity: .75; }
.gold__award { font-size: clamp(17px, 2vw, 22px); font-weight: 800; }
.gold__award b { color: var(--gold); }
.gold__chips { list-style: none; padding: 0; margin: 14px 0 26px; display: flex; flex-wrap: wrap; gap: 8px; }
.gold__chips li { font-size: 12px; padding: 5px 11px; border-radius: 999px; color: #fff2cf; background: rgba(232, 181, 58, .08); border: 1px solid rgba(232, 181, 58, .45); }
.gold__log { position: relative; list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.gold__log::before { content: ""; position: absolute; left: 6px; right: 6px; top: 6px; height: 2px; background: linear-gradient(90deg, rgba(237, 235, 228, .25), var(--gold)); }
.gold__log li { position: relative; padding-top: 24px; font-size: 13px; line-height: 1.55; color: rgba(237, 235, 228, .78); }
.gold__log li::before { content: ""; position: absolute; left: 0; top: 0; width: 14px; height: 14px; border-radius: 50%; background: #0b1330; border: 2px solid rgba(237, 235, 228, .6); }
.gold__log li.is-gold::before { background: var(--gold); border-color: var(--gold); box-shadow: 0 0 0 5px rgba(232, 181, 58, .25); }
.gold__log span { text-wrap: pretty; }
.gold__log b { display: block; margin-bottom: 2px; font: 800 15px var(--f-mono); color: #fff; }
.gold__log li.is-gold b { color: var(--gold); }
.gold__next { margin-top: 24px; font-size: 17px; }
.gold__next b { color: var(--gold); }
.gold__src { margin-top: 8px; font-size: 12px; color: rgba(237, 235, 228, .55); }
.gold__src a { color: inherit; text-underline-offset: 3px; }
.gold__src a:hover { color: var(--gold); }
@media (max-width: 860px) {
  .gold { grid-template-columns: 1fr; }
  .gold__medal { width: 170px; height: 200px; }
  .medal { width: 140px; height: 140px; margin-left: -70px; }
  .medal__no { font-size: 44px; }
  .ribbon { width: 46px; height: 104px; }
  .ribbon--l { left: 36px; }
  .ribbon--r { right: 36px; }
}
@media (max-width: 560px) {
  .news { font-size: 12px; border-radius: 14px; }
  .gold__log { grid-template-columns: 1fr; gap: 12px; padding-left: 26px; }
  .gold__log::before { left: 6px; right: auto; top: 6px; bottom: 6px; width: 2px; height: auto; background: linear-gradient(rgba(237, 235, 228, .25), var(--gold)); }
  .gold__log li { padding-top: 0; }
  .gold__log li::before { left: -26px; top: 3px; }
}

/* ---------- 05 · 航线 ---------- */
.route__track { position: relative; padding: 30px 0 20px; }
.route__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; z-index: 0; }
.route__ghost { fill: none; stroke: var(--ink); stroke-opacity: .3; stroke-width: 2; stroke-dasharray: 1 9; stroke-linecap: round; }
.route__line { fill: none; stroke: var(--orange); stroke-width: 4; stroke-linecap: round; }
.route__halo { fill: var(--orange); opacity: .16; transform-box: fill-box; transform-origin: center; animation: halo 1.6s ease-in-out infinite; }
@keyframes halo { 50% { transform: scale(1.35); opacity: .08; } }
.rd-arm { stroke: var(--ink); stroke-width: 9; stroke-linecap: round; fill: none; }
.rd-rot { fill: var(--card); stroke: var(--ink); stroke-width: 4; }
.rd-hull { fill: var(--orange); stroke: var(--ink); stroke-width: 4; }
.rd-led { fill: #fff; }
.route__drone { transition: opacity .3s; }

.route__list { position: relative; z-index: 1; list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.wp { position: relative; width: calc(50% - 64px); }
.wp:nth-child(odd) { align-self: flex-start; }
.wp:nth-child(even) { align-self: flex-end; }
.wp + .wp { margin-top: -44px; }
.wp__dot { position: absolute; top: 34px; width: 18px; height: 18px; margin: -9px 0 0 -9px; border-radius: 50%; background: var(--paper); border: 3px solid var(--ink); transition: background-color .3s, border-color .3s, transform .3s var(--ease); }
.wp:nth-child(odd) .wp__dot { left: calc(100% + 64px - 34px); }
.wp:nth-child(even) .wp__dot { left: calc(-64px + 34px); }
.wp__dot::after { content: ""; position: absolute; top: 50%; height: 0; width: 22px; border-top: 2px dashed var(--ink); opacity: .35; }
.wp:nth-child(odd) .wp__dot::after { right: 100%; margin-right: 4px; }
.wp:nth-child(even) .wp__dot::after { left: 100%; margin-left: 4px; }
.wp__card {
  position: relative; padding: 20px 22px; border-radius: 16px;
  background: var(--card); border: 1.5px solid var(--ink);
  opacity: .5; transform: translateY(12px) scale(.98);
  transition: opacity .5s var(--ease), transform .5s var(--ease), box-shadow .5s var(--ease), border-color .5s;
}
.wp__id { display: block; font-size: 11px; letter-spacing: .14em; color: var(--ink-3); transition: color .4s; }
.wp__card h3 { font-size: clamp(20px, 2.2vw, 26px); font-weight: 900; margin: 6px 0 6px; }
.wp__card p { color: var(--ink-2); font-size: 15px; }
.wp.on .wp__card { opacity: 1; transform: none; box-shadow: 6px 6px 0 var(--sh); }
.wp.on .wp__id { color: var(--orange); }
.wp.on .wp__dot { background: var(--orange); border-color: var(--orange); transform: scale(1.15); }
.wp--final .wp__card { background: var(--blue); color: #fff; border-color: var(--ink); overflow: hidden; }
.wp--final .wp__card::after {
  content: ""; position: absolute; right: -40px; bottom: -40px; width: 150px; height: 150px; border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, .35);
  background:
    linear-gradient(90deg, transparent 49%, rgba(255, 255, 255, .35) 49% 51%, transparent 51%),
    linear-gradient(transparent 49%, rgba(255, 255, 255, .35) 49% 51%, transparent 51%),
    radial-gradient(ellipse 30% 50% at 50% 50%, transparent 96%, rgba(255, 255, 255, .35) 97% 100%, transparent 100%),
    radial-gradient(ellipse 50% 22% at 50% 30%, transparent 96%, rgba(255, 255, 255, .25) 97% 100%, transparent 100%),
    radial-gradient(ellipse 50% 22% at 50% 70%, transparent 96%, rgba(255, 255, 255, .25) 97% 100%, transparent 100%);
}
.wp--final .wp__card h3 { font-size: clamp(26px, 3vw, 36px); }
.wp--final .wp__card p, .wp--final .wp__id { color: rgba(255, 255, 255, .85); }
.wp--final.on .wp__id { color: var(--yellow); }
.wp--final.on .wp__dot { background: var(--blue); border-color: var(--blue); box-shadow: 0 0 0 8px color-mix(in srgb, var(--blue) 25%, transparent); }

@media (max-width: 760px) {
  .wp { width: auto; align-self: stretch !important; margin-left: 50px; }
  .wp + .wp { margin-top: 22px; }
  .wp:nth-child(odd) .wp__dot, .wp:nth-child(even) .wp__dot { left: -32px; }
  .wp:nth-child(even) .wp__dot { left: -24px; }
  .wp .wp__dot::after { display: none; }
  .wp--final .wp__card::after { right: -64px; bottom: -64px; opacity: .6; }
}

/* ---------- 06 · 试飞 ---------- */
.gcs { border: 1.5px solid var(--ink); border-radius: 20px; overflow: hidden; background: #0a0f22; color: #e9e6dd; box-shadow: 9px 9px 0 var(--sh); }
.gcs__bar, .gcs__foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 18px; padding: 12px 18px; font-size: 12px; letter-spacing: .06em; }
.gcs__bar { border-bottom: 1px solid rgba(255, 255, 255, .12); }
.gcs__bar b { color: #fff; }
.gcs__wind i { display: inline-block; font-style: normal; color: var(--yellow); transition: transform .6s var(--ease); }
.gcs__foot { border-top: 1px solid rgba(255, 255, 255, .12); opacity: .7; justify-content: flex-start; }
@media (hover: none) { .gcs__foot span:not(:first-child) { display: none; } }
.gcs__screen { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.gcs__screen canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; cursor: crosshair; }
.gcs__hud { position: absolute; left: 16px; top: 14px; display: flex; gap: 10px; pointer-events: none; }
.gh { display: flex; align-items: center; gap: 8px; padding: 7px 10px; border-radius: 8px; background: rgba(6, 10, 24, .6); border: 1px solid rgba(255, 255, 255, .14); font: 500 11px var(--f-mono); letter-spacing: .1em; }
.gh b { font: 800 18px/1 var(--f-display); font-stretch: 115%; color: #fff; min-width: 2ch; }
.gh--bat b { font: 700 12px var(--f-mono); min-width: 5ch; }
.gbat { width: 90px; height: 10px; border-radius: 3px; border: 1px solid rgba(255, 255, 255, .5); padding: 1px; position: relative; }
.gbat::after { content: ""; position: absolute; right: -4px; top: 2px; width: 2px; height: 4px; background: rgba(255, 255, 255, .5); }
.gbat i { display: block; height: 100%; width: 100%; background: #42e29b; border-radius: 1px; transition: background-color .3s; }
.gbat i.low { background: var(--red); }
.gbat i.mid { background: var(--yellow); }
.gcs__overlay { position: absolute; inset: 0; display: grid; place-items: center; padding: 20px; background: rgba(6, 10, 24, .62); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); transition: opacity .4s; }
.gcs__overlay.is-hidden { opacity: 0; pointer-events: none; }
.go { text-align: center; max-width: 440px; }
.go__k { font-size: 11px; letter-spacing: .2em; color: var(--yellow); }
.go h3 { font: 900 clamp(34px, 5vw, 56px)/1.1 var(--f-cn); margin: 8px 0 10px; color: #fff; }
.go p { color: rgba(233, 230, 221, .8); margin-bottom: 22px; }
.go p b { color: var(--orange); }
.gcs__warn { position: absolute; left: 50%; top: 18px; transform: translateX(-50%); padding: 7px 12px; border-radius: 6px; background: rgba(224, 48, 58, .9); color: #fff; font: 700 12px var(--f-mono); letter-spacing: .08em; opacity: 0; transition: opacity .2s; pointer-events: none; white-space: nowrap; }
.gcs__warn.show { opacity: 1; animation: blink .5s steps(2, jump-none) infinite; }
@media (max-width: 760px) {
  .gcs__screen { aspect-ratio: 4 / 5; }
  .gcs__hud { left: 10px; top: 10px; }
  .gbat { width: 60px; }
  .gcs__warn { top: auto; bottom: 14px; }
}

/* ---------- 07 · 塔台问答 ---------- */
.faq__list { display: grid; gap: 12px; max-width: 940px; }
.qa { border: 1.5px solid var(--ink); border-radius: 14px; background: var(--card); transition: box-shadow .3s var(--ease); }
.qa[open] { box-shadow: 6px 6px 0 var(--sh); }
.qa summary { display: grid; grid-template-columns: 112px 1fr auto; align-items: center; gap: 14px; padding: 16px 20px; cursor: pointer; list-style: none; border-radius: 14px; }
.qa summary::-webkit-details-marker { display: none; }
.qa__call { font-size: 10px; letter-spacing: .12em; color: var(--ink-3); white-space: nowrap; }
.qa__q { font: 800 clamp(16px, 1.8vw, 19px)/1.4 var(--f-cn); }
.qa__ico { position: relative; width: 28px; height: 28px; border-radius: 50%; border: 1.5px solid var(--ink); transition: transform .35s var(--ease), background-color .3s, border-color .3s; }
.qa__ico::before, .qa__ico::after { content: ""; position: absolute; left: 50%; top: 50%; background: var(--ink); transition: transform .3s var(--ease), background-color .3s; }
.qa__ico::before { width: 10px; height: 2px; margin: -1px 0 0 -5px; }
.qa__ico::after { width: 2px; height: 10px; margin: -5px 0 0 -1px; }
.qa summary:hover .qa__ico { background: color-mix(in srgb, var(--orange) 14%, transparent); }
.qa[open] .qa__ico { background: var(--orange); border-color: var(--orange); transform: rotate(180deg); }
.qa[open] .qa__ico::before, .qa[open] .qa__ico::after { background: #fff; }
.qa[open] .qa__ico::after { transform: scaleY(0); }
.qa__a { display: grid; grid-template-columns: 112px 1fr; gap: 14px; padding: 16px 20px 20px; border-top: 1px dashed var(--line); }
.qa__a .qa__call { color: var(--orange); padding-top: 4px; }
.qa__a p { color: var(--ink-2); font-size: 16px; max-width: 68ch; }
.qa[open] .qa__a { animation: rpIn .4s var(--ease); }
@media (max-width: 560px) {
  .qa summary { grid-template-columns: 1fr auto; gap: 6px 12px; padding: 14px 16px; }
  .qa summary .qa__call { grid-column: 1 / -1; }
  .qa__a { grid-template-columns: 1fr; gap: 6px; padding: 14px 16px 16px; }
  .qa__a p { font-size: 15px; }
}

/* ---------- 页脚 · 着陆 ---------- */
.land { position: relative; background: var(--night); color: var(--moon); padding: clamp(84px, 11vw, 140px) 0 36px; overflow: hidden; }
.land::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .6;
  background: linear-gradient(rgba(237, 235, 228, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(237, 235, 228, .05) 1px, transparent 1px); background-size: 32px 32px; }
.land .wrap { position: relative; }
.land__k { font-size: 12px; letter-spacing: .2em; color: #42e29b; }
.land__title { font: 900 clamp(56px, 11vw, 160px)/1 var(--f-cn); letter-spacing: -.04em; margin: 16px 0 12px; }
.land__sub { color: rgba(237, 235, 228, .7); font-size: 17px; }

.pass { display: grid; grid-template-columns: 1.6fr 1fr; margin-top: clamp(40px, 6vw, 72px); color: #10152a; filter: drop-shadow(0 30px 40px rgba(0, 0, 0, .45)); }
.pass__main, .pass__stub { background: #f4f1e8; padding: clamp(20px, 3vw, 32px); }
.pass__main { border-radius: 20px 0 0 20px;
  -webkit-mask: radial-gradient(circle 14px at 100% 0, transparent 98%, #000) top / 100% 51% no-repeat, radial-gradient(circle 14px at 100% 100%, transparent 98%, #000) bottom / 100% 51% no-repeat;
  mask: radial-gradient(circle 14px at 100% 0, transparent 98%, #000) top / 100% 51% no-repeat, radial-gradient(circle 14px at 100% 100%, transparent 98%, #000) bottom / 100% 51% no-repeat; }
.pass__stub { border-radius: 0 20px 20px 0; border-left: 2px dashed rgba(16, 21, 42, .3); display: flex; flex-direction: column; gap: 14px;
  -webkit-mask: radial-gradient(circle 14px at 0 0, transparent 98%, #000) top / 100% 51% no-repeat, radial-gradient(circle 14px at 0 100%, transparent 98%, #000) bottom / 100% 51% no-repeat;
  mask: radial-gradient(circle 14px at 0 0, transparent 98%, #000) top / 100% 51% no-repeat, radial-gradient(circle 14px at 0 100%, transparent 98%, #000) bottom / 100% 51% no-repeat; }
.pass__top { display: flex; justify-content: space-between; font: 700 12px var(--f-mono); letter-spacing: .14em; color: #434a60; padding-bottom: 14px; border-bottom: 1.5px solid #10152a; }
.pass__route { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px; padding: clamp(18px, 3vw, 30px) 0; }
.pass__route b { display: block; font: 900 clamp(46px, 7vw, 88px)/1 var(--f-display); font-stretch: 125%; letter-spacing: -.02em; }
.pass__route span { font-size: 14px; color: #434a60; }
.pass__plane { width: 60px; position: relative; color: var(--orange); }
.pass__plane svg { width: 44px; height: 44px; display: block; margin: 0 auto; animation: hover 3s ease-in-out infinite; }
.pass__plane::before, .pass__plane::after { content: ""; position: absolute; top: 50%; width: 30px; border-top: 2px dashed rgba(16, 21, 42, .35); }
.pass__plane::before { right: 100%; }
.pass__plane::after { left: 100%; }
@keyframes hover { 50% { transform: translateY(-6px) rotate(8deg); } }
.pass__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; border-top: 1.5px dashed rgba(16, 21, 42, .3); padding-top: 16px; }
.pass__grid dt { font: 500 10px var(--f-mono); letter-spacing: .12em; color: #7a8196; }
.pass__grid dd { font-weight: 800; font-size: 15px; }
.pass__k { font-size: 11px; letter-spacing: .14em; color: #434a60; }
.report { list-style: none; padding: 0; margin: 0; }
.report li { display: flex; justify-content: space-between; gap: 10px; padding: 6px 0; border-bottom: 1px dashed rgba(16, 21, 42, .2); font-size: 14px; }
.report b { font-size: 14px; }
.barcode { height: 46px; border-radius: 2px; margin-top: auto; }
.pass__ok { font-size: 11px; color: var(--green); letter-spacing: .04em; }

.land__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 20px; margin-top: clamp(48px, 7vw, 80px); padding-top: 28px; border-top: 1px solid rgba(237, 235, 228, .15); }
.land__info b { display: block; font-size: 18px; font-weight: 900; }
.land__info span { color: rgba(237, 235, 228, .6); font-size: 14px; }
.rth:hover { box-shadow: 4px 4px 0 rgba(237, 235, 228, .3); }
.land__legal a { color: inherit; text-underline-offset: 3px; }
.land__legal a:hover { color: var(--moon); }
.land__legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; margin-top: 28px; font: 500 11px var(--f-mono); letter-spacing: .06em; color: rgba(237, 235, 228, .45); }

@media (max-width: 860px) {
  .pass { grid-template-columns: 1fr; }
  .pass__main { border-radius: 20px 20px 0 0;
    -webkit-mask: radial-gradient(circle 14px at 0 100%, transparent 98%, #000) left / 51% 100% no-repeat, radial-gradient(circle 14px at 100% 100%, transparent 98%, #000) right / 51% 100% no-repeat;
    mask: radial-gradient(circle 14px at 0 100%, transparent 98%, #000) left / 51% 100% no-repeat, radial-gradient(circle 14px at 100% 100%, transparent 98%, #000) right / 51% 100% no-repeat; }
  .pass__stub { border-radius: 0 0 20px 20px; border-left: 0; border-top: 2px dashed rgba(16, 21, 42, .3);
    -webkit-mask: radial-gradient(circle 14px at 0 0, transparent 98%, #000) left / 51% 100% no-repeat, radial-gradient(circle 14px at 100% 0, transparent 98%, #000) right / 51% 100% no-repeat;
    mask: radial-gradient(circle 14px at 0 0, transparent 98%, #000) left / 51% 100% no-repeat, radial-gradient(circle 14px at 100% 0, transparent 98%, #000) right / 51% 100% no-repeat; }
  .pass__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .pass__route { gap: 8px; }
  .pass__plane { width: 36px; }
  .pass__plane::before, .pass__plane::after { display: none; }
  .pass__route span { font-size: 12px; }
}

/* ---------- 专题文章页 ---------- */
.dnav {
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50;
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px;
  padding: 12px clamp(16px, 4vw, 40px);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.dnav__links { display: flex; flex-wrap: wrap; gap: 4px; margin-left: auto; }
.dnav__links a { font-size: 14px; font-weight: 500; text-decoration: none; padding: 6px 10px; border-radius: 8px; transition: background-color .2s; }
.dnav__links a:hover { background: color-mix(in srgb, var(--ink) 8%, transparent); }
.dnav__links a[aria-current="page"] { background: var(--ink); color: var(--paper); }
.doc {
  padding-block: clamp(36px, 6vw, 72px) clamp(64px, 8vw, 110px);
  background-color: var(--paper);
  background-image: var(--grain), linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 160px 160px, 32px 32px, 32px 32px;
}
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; font: 500 12px var(--f-mono); letter-spacing: .04em; color: var(--ink-3); }
.crumbs a { color: inherit; text-underline-offset: 3px; }
.crumbs a:hover { color: var(--orange); }
.doc__head { max-width: 880px; margin: 22px 0 30px; }
.doc__kicker { font: 700 12px var(--f-mono); letter-spacing: .14em; color: var(--orange); }
.doc h1 { margin: 12px 0 16px; font: 900 clamp(32px, 5.2vw, 58px)/1.14 var(--f-cn); letter-spacing: -.02em; text-wrap: balance; }
.doc__meta { display: flex; flex-wrap: wrap; gap: 6px 16px; font: 500 12px var(--f-mono); color: var(--ink-3); }
.doc__summary {
  max-width: 880px; margin: 0 0 12px; padding: 20px 22px;
  font-size: clamp(16px, 1.7vw, 19px); line-height: 1.85;
  background: var(--card); border: 1.5px solid var(--ink); border-radius: 14px; box-shadow: 6px 6px 0 var(--sh);
}
.doc__summary::before { content: "摘要 · TL;DR"; display: block; margin-bottom: 6px; font: 700 11px var(--f-mono); letter-spacing: .14em; color: var(--orange); }
.doc__body { max-width: 780px; }
.doc__body h2 { display: flex; align-items: baseline; gap: 12px; margin: 52px 0 14px; font: 900 clamp(23px, 3vw, 31px)/1.3 var(--f-cn); text-wrap: balance; }
.doc__body h2 .sec-no { flex: none; font-size: 12px; }
.doc__body h3 { margin: 26px 0 8px; font: 800 19px/1.4 var(--f-cn); }
.doc__body p, .doc__body li { font-size: 17px; line-height: 1.85; color: var(--ink-2); }
.doc__body p { margin: 0 0 14px; }
.doc__body strong { color: var(--ink); }
.doc__body a { color: var(--ink); text-decoration-color: var(--orange); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.doc__body a:hover { color: var(--orange); }
.facts { display: grid; grid-template-columns: max-content 1fr; margin: 22px 0; background: var(--card); border: 1.5px solid var(--ink); border-radius: 14px; overflow: hidden; }
.facts dt, .facts dd { padding: 12px 16px; border-bottom: 1px dashed var(--line); }
.facts dt { font-size: 13px; color: var(--ink-3); white-space: nowrap; }
.facts dd { font-weight: 700; line-height: 1.6; }
.facts dt:last-of-type, .facts dd:last-of-type { border-bottom: 0; }
.tl { list-style: none; margin: 20px 0; padding: 0 0 0 26px; position: relative; }
.tl::before { content: ""; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--line), var(--gold)); }
.tl li { position: relative; padding-bottom: 16px; }
.tl li::before { content: ""; position: absolute; left: -26px; top: 7px; width: 14px; height: 14px; border-radius: 50%; background: var(--paper); border: 2px solid var(--ink-3); }
.tl li.is-gold::before { background: var(--gold); border-color: var(--gold); box-shadow: 0 0 0 5px color-mix(in srgb, var(--gold) 25%, transparent); }
.tl b { display: block; font: 800 15px var(--f-mono); color: var(--ink); }
.mods { list-style: none; margin: 18px 0; padding: 0; display: grid; gap: 12px; }
.mod { padding: 16px 18px; background: var(--card); border: 1.5px solid var(--ink); border-radius: 14px; }
.mod h3 { margin: 0 0 6px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.mod h3 small { font: 700 11px var(--f-mono); letter-spacing: .12em; color: var(--orange); }
.mod p { margin: 0 0 10px; }
.mod .rp__tags { margin: 0; }
.steps { list-style: none; margin: 18px 0; padding: 0; display: grid; gap: 10px; counter-reset: step; }
.steps li { position: relative; padding: 14px 16px 14px 60px; background: var(--card); border: 1.5px solid var(--ink); border-radius: 14px; counter-increment: step; }
.steps li::before { content: counter(step, decimal-leading-zero); position: absolute; left: 16px; top: 14px; font: 800 18px var(--f-mono); color: var(--orange); }
.steps b { display: block; color: var(--ink); font-size: 17px; }
.quote-law { margin: 16px 0; padding: 14px 18px; border-left: 4px solid var(--blue); background: color-mix(in srgb, var(--blue) 7%, var(--card)); border-radius: 0 12px 12px 0; }
.quote-law p { margin: 0; color: var(--ink); }
.quote-law cite { display: block; margin-top: 6px; font: 500 12px var(--f-mono); font-style: normal; color: var(--ink-3); }
.note { margin: 18px 0; padding: 12px 16px; font-size: 14px; color: var(--ink-3); border: 1px dashed var(--line); border-radius: 12px; }
.refs { padding-left: 1.2em; }
.refs li { font-size: 14px !important; line-height: 1.7 !important; }
.related { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin-top: 56px; max-width: 980px; }
.related a { display: block; padding: 16px 18px; text-decoration: none; background: var(--card); border: 1.5px solid var(--ink); border-radius: 14px; transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
.related a:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 var(--sh); }
.related span { display: block; font: 700 11px var(--f-mono); letter-spacing: .12em; color: var(--orange); }
.related b { display: block; margin: 6px 0 4px; font-size: 17px; line-height: 1.4; }
.related p { margin: 0; font-size: 14px; color: var(--ink-2); }
.related__title { margin-top: 56px; font: 900 22px var(--f-cn); }
.related__title + .related { margin-top: 14px; }
.doc-foot { padding: 28px 0 32px; background: var(--night); color: rgba(237, 235, 228, .7); font: 500 12px/1.8 var(--f-mono); }
.doc-foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; }
.doc-foot a { color: var(--moon); text-underline-offset: 3px; }
.readmore { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; font-weight: 700; font-size: 15px; text-underline-offset: 4px; }
.gold .readmore { color: var(--gold); }
.articles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 40px; max-width: 940px; }
.articles a { display: block; padding: 18px; text-decoration: none; background: var(--card); border: 1.5px solid var(--ink); border-radius: 14px; transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
.articles a:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--sh); }
.articles span { font: 700 11px var(--f-mono); letter-spacing: .12em; color: var(--orange); }
.articles b { display: block; margin: 6px 0 4px; font-size: 17px; line-height: 1.4; }
.articles p { font-size: 14px; color: var(--ink-2); }
.articles__title { margin-top: 48px; font: 900 22px var(--f-cn); }
.articles__title + .articles { margin-top: 14px; }
@media (max-width: 760px) {
  .articles { grid-template-columns: 1fr; }
  .facts { grid-template-columns: 1fr; }
  .facts dt { padding-bottom: 0; border-bottom: 0; }
  .facts dd { padding-top: 2px; }
  .dnav__links { margin-left: 0; width: 100%; }
  .steps li { padding-left: 52px; }
}

/* ---------- 取景器灯箱 ---------- */
.lb { position: fixed; inset: 0; z-index: 120; background: #04060e; color: #edebe4; }
.lb[hidden] { display: none; }
.lb__stage { position: absolute; inset: 0; display: grid; place-items: center; padding: 72px 84px 150px; overflow: hidden; }
.lb__zoomer { position: relative; overflow: hidden; border-radius: 4px; cursor: zoom-in; box-shadow: 0 0 0 1px rgba(237, 235, 228, .12); }
.lb__zoomer.is-z { cursor: zoom-out; }
.lb__zoomer img { transform-origin: var(--ox, 50%) var(--oy, 50%); transition: transform .55s var(--ease); }
.lb__zoomer.is-z img { transform: scale(2.4); }
.lb__zoomer.is-z .lb__target { opacity: 0; }
.lb__zoomer img { display: block; --ar: 1.333; width: min(calc(100vw - 168px), calc((100vh - 222px) * var(--ar))); height: auto; border-radius: 4px; user-select: none; -webkit-user-drag: none; }
.lb.is-open .lb__zoomer img { animation: iris .6s var(--ease); }
@keyframes iris { from { clip-path: inset(46% 46% round 50%); opacity: .3; } to { clip-path: inset(0 0 round 4px); opacity: 1; } }
.lb__target { position: absolute; width: 10%; aspect-ratio: 1; transform: translate(-50%, -50%); border: 2px solid var(--orange); border-radius: 4px; pointer-events: none; animation: blink 1s steps(2, jump-none) infinite; display: none; }
.lb__target.show { display: block; }
.lb__hud { position: absolute; inset: 0; pointer-events: none; }
.lb__hud .hud__c { border-color: rgba(237, 235, 228, .6); }
.lb__hud .hud__c--tl, .lb__hud .hud__c--tr { top: 18px; }
.lb__cross { position: absolute; left: 50%; top: calc(50% - 39px); width: 40px; height: 40px; margin: -20px 0 0 -20px; opacity: .45; }
.lb__cross::before, .lb__cross::after { content: ""; position: absolute; background: #edebe4; }
.lb__cross::before { left: 50%; top: 0; bottom: 0; width: 1px; }
.lb__cross::after { top: 50%; left: 0; right: 0; height: 1px; }
.lb__tl { position: absolute; top: 24px; left: 56px; font-size: 12px; letter-spacing: .1em; }
.lb__tr { position: absolute; top: 24px; left: 50%; transform: translateX(-50%); font-size: 11px; letter-spacing: .1em; opacity: .7; white-space: nowrap; }
.lb__cap { position: absolute; left: 56px; right: 200px; bottom: 30px; }
.lb__no { font-size: 11px; letter-spacing: .14em; color: var(--orange); }
.lb__cap h3 { font: 900 clamp(22px, 3vw, 34px)/1.2 var(--f-cn); margin: 4px 0 2px; }
.lb__en { font-size: 11px; letter-spacing: .16em; opacity: .55; }
.lb__cap p { margin-top: 6px; opacity: .82; max-width: 640px; font-size: 15px; }
.lb__btn { position: absolute; font: 700 12px var(--f-mono); letter-spacing: .08em; padding: 10px 14px; border-radius: 8px; border: 1px solid rgba(237, 235, 228, .3); background: rgba(6, 10, 24, .6); transition: background-color .2s, border-color .2s; }
.lb__btn:hover { background: var(--orange); border-color: var(--orange); color: #fff; }
.lb__close { top: 16px; right: 56px; }
.lb__prev, .lb__next { top: 50%; transform: translateY(-50%); width: 48px; height: 48px; padding: 0; border-radius: 50%; font-size: 14px; }
.lb__prev { left: 18px; }
.lb__next { right: 18px; }
@media (max-width: 760px) {
  .lb__stage { padding: 64px 8px 190px; }
  .lb__zoomer img { width: min(calc(100vw - 16px), calc((100vh - 270px) * var(--ar))); }
  .lb__tr { display: none; }
  .lb__tl { left: 30px; top: 26px; font-size: 10px; }
  .lb__close { right: 16px; top: 14px; }
  .lb__cap { left: 20px; right: 20px; bottom: 84px; }
  .lb__cap p { font-size: 14px; }
  .lb__prev, .lb__next { top: auto; bottom: 20px; transform: none; }
  .lb__prev { left: 20px; }
  .lb__next { right: 20px; left: auto; }
  .lb__cross { display: none; }
}

/* ---------- 减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .js [data-reveal] { transform: none; }
  .tapeband__track { animation: none; }
  .buddy { display: none; }
}