/* ============================================================
   KOENIGSEGG JESKO — 双语官网
   设计语言:瑞典极简工程 × 幽灵徽标 × Tang Orange
   手法:直角卡片 / 描边数字 / feTurbulence 噪点 / 一屏一概念
   点缀色:#E8742A(Attack)/ 冷钢蓝 #7f9db4(Absolut 对偶色)
   ============================================================ */

/* ---------- 字体 ---------- */
@font-face {
  font-family: 'Manrope';
  src: url('../fonts/Manrope-400.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Manrope';
  src: url('../fonts/Manrope-600.woff2') format('woff2');
  font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Manrope';
  src: url('../fonts/Manrope-700.woff2') format('woff2');
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/JetBrainsMono-400.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../fonts/JetBrainsMono-500.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap;
}

/* ---------- 变量 ---------- */
:root {
  --bg:        #070708;
  --bg-soft:   #0d0e10;
  --panel:     #131418;
  --ink:       #f1f1f3;
  --ink-dim:   #a8a8b0;
  --ink-faint: #75757e;
  --accent:      #e8742a;   /* Tang Orange —— Attack 侧 */
  --accent-soft: #f0955e;
  --ice:         #86a7c3;   /* Absolut 侧对偶色 */
  --ice-soft:    #aec9de;
  --line:      rgba(255,255,255,.13);
  --line-soft: rgba(255,255,255,.07);
  --glass:     rgba(255,255,255,.045);
  --font-disp: 'Manrope', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei', sans-serif;
  --font-text: 'Manrope', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei UI', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
  --w-doc: 1240px;
  --w-prose: 640px;
  --ease: cubic-bezier(.22,1,.36,1);
  --r-sharp: 0px;
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: auto; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 17px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
/* 全站碳纤噪点层 */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 2000;
  pointer-events: none;
  opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E");
}
::selection { background: var(--accent); color: #fff; }
img { display: block; max-width: 100%; height: auto; }
video { display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; color: inherit; }
.mono { font-family: var(--font-mono); }

.wrap { max-width: var(--w-doc); margin: 0 auto; padding: 0 clamp(1.4rem, 5vw, 4rem); }

/* ---------- 顶栏 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 24px;
  transition: background .5s, padding .5s, backdrop-filter .5s,
              opacity .5s var(--ease), transform .5s var(--ease);
}
.nav.is-hero { opacity: 0; pointer-events: none; transform: translateY(-8px); }
.nav.is-solid {
  background: rgba(7,7,8,.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 12px 24px;
  border-bottom: 1px solid var(--line);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.nav__brand { display: flex; align-items: center; gap: 12px; color: #fff; }
.nav__ghost { height: 22px; width: auto; flex: none; transition: filter .4s; }
.nav__brand:hover .nav__ghost { filter: drop-shadow(0 0 6px rgba(232,116,42,.8)); }
.nav__brand-name {
  font-family: var(--font-disp);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .38em;
  color: var(--ink);
}
.nav__now {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .22em;
  color: var(--ink-dim);
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: rgba(13,14,16,.55);
  white-space: nowrap; max-width: 32vw; overflow: hidden; text-overflow: ellipsis;
  transition: color .3s, border-color .3s;
}
.nav__now::before {
  content: ''; width: 5px; height: 5px; flex: none;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(232,116,42,.9);
}
.nav__lang { display: inline-flex; align-items: center; gap: 10px; }
.lang-btn {
  font-family: var(--font-mono);
  font-size: 12.5px; letter-spacing: .2em;
  padding: 8px 6px;
  color: var(--ink-dim);
  position: relative;
  transition: color .3s;
}
.lang-btn::after {
  content: ''; position: absolute; left: 4px; right: 4px; bottom: 3px; height: 1px;
  background: var(--accent);
  transform: scaleX(0); transition: transform .3s var(--ease);
}
.lang-btn:hover { color: var(--ink); }
.lang-btn:hover::after, .lang-btn.is-on::after { transform: scaleX(1); }
.lang-btn.is-on { color: var(--ink); }
.nav__menu-btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .24em;
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: rgba(13,14,16,.55);
  transition: border-color .3s;
}
.nav__menu-btn:hover { border-color: var(--accent); }
.nav__menu-icon { position: relative; width: 16px; height: 10px; }
.nav__menu-icon i {
  position: absolute; left: 0; width: 16px; height: 1px;
  background: currentColor;
  transition: transform .35s var(--ease), opacity .25s;
}
.nav__menu-icon i:first-child { top: 0; }
.nav__menu-icon i:last-child { bottom: 0; }
.nav__menu-btn[aria-expanded="true"] i:first-child { transform: translateY(4.5px) rotate(45deg); }
.nav__menu-btn[aria-expanded="true"] i:nth-child(2) { opacity: 0; }
.nav__menu-btn[aria-expanded="true"] i:last-child { transform: translateY(-4.5px) rotate(-45deg); }
.nav__progress { position: absolute; left: 0; right: 0; bottom: 0; height: 2px; }
.nav__progress i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft));
  box-shadow: 0 0 10px rgba(232,116,42,.55);
  transition: width .15s linear;
}

/* ---------- 章节菜单浮层 ---------- */
.menu-overlay {
  position: fixed; inset: 0; z-index: 89;
  background: rgba(7,7,8,.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: grid; place-items: center;
  opacity: 0; visibility: hidden;
  transition: opacity .4s var(--ease), visibility .4s;
}
.menu-overlay.is-open { opacity: 1; visibility: visible; }
.menu-overlay__nav {
  display: grid; grid-template-columns: repeat(2, minmax(180px, 260px));
  gap: 4px 44px; padding: 24px;
}
.menu-overlay__nav a {
  display: flex; gap: 14px; padding: 13px 10px;
  font-family: var(--font-disp); font-weight: 500;
  font-size: 21px; letter-spacing: .06em;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  transition: color .3s, border-color .3s, padding-left .3s;
}
.menu-overlay__nav a:hover { color: var(--accent-soft); border-color: var(--accent); padding-left: 16px; }
.menu-overlay__nav a .idx {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--ink-faint); align-self: center; letter-spacing: .12em;
}
.menu-overlay__sub {
  position: absolute; bottom: 6vh; left: 0; right: 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .34em;
  color: var(--ink-faint); text-transform: uppercase;
}

/* ---------- 滚动进度表盘 ---------- */
.scroll-gauge {
  position: fixed; right: 26px; bottom: 26px;
  width: 44px; height: 44px; z-index: 90;
  opacity: 0; transition: opacity .5s;
}
.scroll-gauge.is-on { opacity: 1; }
.scroll-gauge svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.scroll-gauge circle { fill: none; stroke-width: 2; }
.scroll-gauge circle:first-child { stroke: rgba(255,255,255,.12); }
.scroll-gauge .sg__bar {
  stroke: var(--accent); stroke-linecap: round;
  stroke-dasharray: 119.4; stroke-dashoffset: 119.4;
}
.sg__num {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 10px; color: var(--ink-dim);
}

/* ---------- HERO ---------- */
.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  overflow: hidden; background: #000;
}
.hero__media { position: absolute; inset: 0; }
.hero__media video, .hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero__parallax { will-change: transform; transform: scale(1.08); }
.hero__veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(to bottom, rgba(7,7,8,.5) 0%, rgba(7,7,8,.05) 42%, rgba(7,7,8,.94) 100%);
}
.hero__content {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 0 clamp(1.4rem, 5vw, 4rem);
}
.hero__wordmark {
  width: min(64vw, 430px);
  opacity: 0; transform: translateY(16px);
  transition: opacity 1.1s var(--ease) .2s, transform 1.1s var(--ease) .2s;
}
.hero.is-in .hero__wordmark { opacity: 1; transform: none; }
.hero__mini {
  margin-top: 1.7rem;
  font-family: var(--font-mono);
  font-size: clamp(.68rem, 1.4vw, .82rem);
  letter-spacing: .5em; text-transform: uppercase;
  color: rgba(241,241,243,.85);
  text-shadow: 0 2px 18px rgba(0,0,0,.75);
  opacity: 0; transform: translateY(12px);
  transition: opacity 1s var(--ease) .65s, transform 1s var(--ease) .65s;
}
.hero.is-in .hero__mini { opacity: 1; transform: none; }
.hero__data {
  display: flex; justify-content: center; flex-wrap: wrap;
  gap: clamp(1.4rem, 4vw, 3.6rem);
  margin-top: clamp(1.8rem, 4.5vh, 2.8rem);
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  opacity: 0; transform: translateY(14px);
  transition: opacity 1s var(--ease) 1.05s, transform 1s var(--ease) 1.05s;
}
.hero.is-in .hero__data { opacity: 1; transform: none; }
.hero__data > div { display: flex; flex-direction: column; gap: .1rem; text-align: left; }
.hero__data b {
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1; letter-spacing: .02em;
}
.hero__data b em { font-style: normal; color: var(--accent); }
.hero__data span {
  font-family: var(--font-mono); font-size: .68rem;
  letter-spacing: .3em; color: var(--ink-faint); text-transform: uppercase;
}
.hero__scroll {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: .66rem;
  letter-spacing: .5em; color: var(--ink-faint);
  display: flex; flex-direction: column; align-items: center; gap: .7rem;
  transition: opacity .4s;
}
.hero__scroll::after {
  content: ''; width: 1px; height: 3rem;
  background: linear-gradient(to bottom, var(--ink-faint), transparent);
  animation: scrollPulse 2.4s var(--ease) infinite;
}
@keyframes scrollPulse {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- HYPERCAR 门户条 ---------- */
.portal-bar {
  display: flex; align-items: center; gap: 16px;
  width: fit-content; max-width: calc(100% - 48px);
  margin: 52px auto 10px;
  padding: 14px 38px;
  border: 1.5px solid var(--accent);
  border-radius: 999px;
  background: rgba(255,255,255,.04);
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .2em;
  color: var(--ink-dim);
  transition: border-color .35s, color .35s, background .35s, transform .35s;
}
.portal-bar:hover { transform: translateY(-2px); background: rgba(255,255,255,.08); }
.portal-bar__rule { width: 36px; height: 1px; flex: none; background: linear-gradient(90deg, transparent, var(--accent)); }
.portal-bar__rule--r { background: linear-gradient(90deg, var(--accent), transparent); }
.portal-bar__badge {
  width: 24px; height: 24px; border-radius: 6px; flex: none;
  display: grid; place-items: center;
  background: var(--accent); color: #14100c;
  font-weight: 700; font-size: 13px;
  box-shadow: 0 0 14px rgba(232,116,42,.7);
}
.portal-bar__name { color: var(--accent-soft); font-weight: 700; letter-spacing: .24em; white-space: nowrap; }
.portal-bar__sep { width: 1px; height: 16px; flex: none; background: var(--line); }
.portal-bar__text { letter-spacing: .12em; white-space: nowrap; }
.portal-bar__arrow { font-style: normal; transition: transform .35s; }
.portal-bar:hover .portal-bar__arrow { transform: translateX(4px); }
@media (max-width: 720px) {
  .portal-bar { flex-wrap: wrap; justify-content: center; text-align: center; margin: 30px 20px 14px; padding: 12px 24px; gap: 12px; }
  .portal-bar__rule { display: none; }
  .portal-bar__text { white-space: normal; }
}

/* ---------- 章节隔页 ---------- */
.chapter-break {
  padding: clamp(5rem, 12vh, 9rem) 0 clamp(3rem, 7vh, 5rem);
  position: relative; overflow: hidden;
}
.chapter-break__inner {
  max-width: var(--w-doc);
  margin: 0 auto; padding: 0 clamp(1.4rem, 5vw, 4rem);
  display: flex; align-items: flex-start;
  gap: clamp(1.4rem, 3vw, 2.6rem);
  position: relative;
}
.chapter-break__no {
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 4rem); line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,.34);
  flex-shrink: 0;
}
.chapter-break h2 {
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(2.1rem, 5vw, 3.9rem);
  line-height: 1.08; letter-spacing: -.01em;
}
.chapter-break h2 .latin {
  display: block;
  font-family: var(--font-mono); font-weight: 400;
  font-size: .26em; letter-spacing: .46em;
  color: var(--ink-faint);
  margin-top: .9rem; text-transform: uppercase;
}
.chapter-break__sub {
  margin-top: 1rem; font-size: 1rem;
  color: var(--ink-dim); max-width: 42em;
}
.chapter-break--dark { background: var(--bg-soft); }
.chapter-break__wm {
  position: absolute; right: -2vw; top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(7rem, 19vw, 17rem);
  line-height: 1; white-space: nowrap;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,.03);
  pointer-events: none; user-select: none;
}
.accent-rule {
  display: inline-block;
  width: 46px; height: 2px;
  background: var(--accent);
  vertical-align: middle;
}

/* ---------- 章节容器 / 段落 ---------- */
.chapter { padding: clamp(3rem, 8vh, 6rem) 0; position: relative; }
.chapter--dark { background: var(--bg-soft); }
.prose { max-width: var(--w-prose); }
.prose p { margin-bottom: 1.4em; }
.prose p b { color: var(--ink); font-weight: 500; }
.lead {
  font-family: var(--font-disp); font-weight: 600;
  font-size: clamp(1.18rem, 2.15vw, 1.46rem);
  line-height: 1.85; color: var(--ink); letter-spacing: .01em;
}
.prose--center { max-width: 58ch; margin: 0 auto; text-align: center; }
.prose--center p:not(.lead) { color: var(--ink-dim); }
.kicker {
  display: inline-flex; align-items: center; gap: 1rem;
  font-family: var(--font-mono);
  font-size: .74rem; letter-spacing: .42em;
  text-transform: uppercase; color: var(--ink-faint);
  margin-bottom: 1.3rem;
}
.kicker::before { content: ''; width: 3rem; height: 1px; background: var(--accent); }

/* 滚动显现 */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .95s var(--ease), transform .95s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- 大数字条 bigstats ---------- */
.bigstats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 18px; margin: clamp(1.6rem, 4vh, 2.6rem) 0;
}
.bigstats__item {
  border-top: 2px solid var(--accent);
  padding-top: 16px;
  display: flex; flex-direction: column; gap: 7px;
  background: linear-gradient(180deg, rgba(255,255,255,.02), transparent);
}
.bigstats__item--ice { border-top-color: var(--ice); }
.bigstats__item b {
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(30px, 3.8vw, 48px);
  color: #fff; line-height: 1;
  letter-spacing: -.015em;
}
.bigstats__item b em { font-style: normal; color: var(--accent); }
.bigstats__item--ice b em { color: var(--ice); }
.bigstats__item span {
  font-family: var(--font-mono);
  font-size: 11.5px; color: var(--ink-faint);
  letter-spacing: .2em; text-transform: uppercase;
}

/* ---------- 图文交替 media-row ---------- */
.media-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.6rem);
  align-items: center;
  margin-top: clamp(3rem, 7vh, 5.5rem);
}
.media-row--flip .media-row__media { order: 2; }
.media-row__media { overflow: hidden; background: #0d0d10; }
.media-row__media img, .media-row__media video {
  width: 100%; height: auto;
  transition: transform 1.4s var(--ease);
}
.media-row__media:hover img, .media-row__media:hover video { transform: scale(1.025); }
.media-row__body .lbl {
  display: block;
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: .85rem;
}
.media-row__body h3 {
  font-family: var(--font-disp); font-weight: 600;
  font-size: clamp(1.55rem, 3vw, 2.3rem);
  line-height: 1.22; margin-bottom: .9rem;
}
.media-row__body p { color: var(--ink-dim); }
.media-row__body ul { list-style: none; margin-top: 1rem; }
.media-row__body li {
  display: grid; grid-template-columns: 128px 1fr; gap: 1rem;
  padding: .55rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: .92rem;
}
.media-row__body li span {
  font-family: var(--font-mono);
  font-size: .78rem; letter-spacing: .1em;
  color: var(--ink-faint); padding-top: .2em;
}
.media-row__body li b { font-weight: 500; color: var(--ink); }
@media (max-width: 860px) {
  .media-row { grid-template-columns: 1fr; }
  .media-row--flip .media-row__media { order: 0; }
}

/* ---------- 细节图文卡 dcards ---------- */
.dcards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: clamp(1.2rem, 2vw, 1.8rem);
  margin: clamp(2.6rem, 6vh, 4.6rem) 0;
}
.dcard {
  overflow: hidden;
  background: var(--bg-soft);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--accent);
  transition: border-color .4s, transform .4s var(--ease);
}
.dcard:hover { border-color: rgba(232,116,42,.5); border-top-color: var(--accent); transform: translateY(-6px); }
.dcard img {
  width: 100%; aspect-ratio: 16/11; object-fit: cover;
  filter: saturate(.92);
  transition: transform 1.1s var(--ease), filter .5s;
}
.dcard:hover img { transform: scale(1.04); filter: saturate(1); }
.dcard__body { padding: 1.35rem 1.45rem 1.6rem; }
.dcard__body .no {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .34em;
  color: var(--ink-faint); text-transform: uppercase;
  display: block; margin-bottom: .5rem;
}
.dcard__body h3 {
  font-family: var(--font-disp); font-weight: 600;
  font-size: 20px; letter-spacing: .01em;
  margin-bottom: .55rem;
}
.dcard__body p { color: var(--ink-dim); font-size: 14px; line-height: 1.8; }
.dcard__body p b { color: var(--ink); font-weight: 500; }

/* ---------- 圆圈数据卡 gauges ---------- */
.gauges {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 28px; justify-items: center;
  margin: clamp(1.6rem, 4vh, 2.6rem) 0 24px;
}
.gauge { text-align: center; position: relative; }
.gauge__svg { position: relative; width: min(184px, 100%); margin: 0 auto; }
.gauge__svg svg { display: block; width: 100%; height: auto; transform: rotate(-90deg); }
.gauge circle { fill: none; stroke-width: 6; }
.gauge__track { stroke: rgba(255,255,255,.09); }
.gauge__bar {
  stroke: var(--accent); stroke-linecap: round;
  stroke-dasharray: 527.8; stroke-dashoffset: 527.8;
  transition: stroke-dashoffset 2.2s var(--ease);
}
.gauge.is-on .gauge__bar { stroke-dashoffset: var(--gauge-off); }
.gauge figcaption {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
}
.gauge figcaption b {
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(28px, 4vw, 40px); line-height: 1; color: #fff;
}
.gauge figcaption b em { font-style: normal; color: var(--accent); }
.gauge__unit { font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint); letter-spacing: .2em; }
.gauge__label { margin-top: 14px; font-size: 13px; color: var(--ink-dim); letter-spacing: .1em; }
.gauge__label small { display: block; margin-top: 4px; font-size: 11px; color: var(--ink-faint); }

/* ---------- 引用块 quote ---------- */
.quote { margin: clamp(2.6rem, 7vh, 5rem) auto 0; max-width: var(--w-prose); }
.quote blockquote {
  font-family: var(--font-disp); font-weight: 600;
  font-size: clamp(1.32rem, 2.7vw, 1.95rem);
  line-height: 1.62; letter-spacing: .005em;
}
.quote::before {
  content: '';
  display: block;
  width: 44px; height: 2px;
  background: var(--accent);
  margin-bottom: 1.4rem;
}
.quote blockquote em { font-style: normal; color: var(--accent); }
.quote .en {
  display: block;
  margin-top: 1.1rem;
  font-family: var(--font-text);
  font-size: .62em; line-height: 1.9;
  color: var(--ink-faint); letter-spacing: .02em;
}
.quote figcaption {
  margin-top: 1.4rem;
  font-family: var(--font-mono);
  font-size: .76rem; letter-spacing: .26em;
  color: var(--ink-faint); text-transform: uppercase;
}
.quote figcaption b { color: var(--ink-dim); font-weight: 400; }

/* ---------- 章节视频 chapter-video ---------- */
.chapter-video {
  position: relative; margin-top: clamp(2.6rem, 7vh, 5rem);
  overflow: hidden; background: #000;
}
.chapter-video video { width: 100%; height: auto; }
.chapter-video__veil {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(7,7,8,.85) 0%, transparent 48%),
              linear-gradient(to bottom, rgba(7,7,8,.3), transparent 28%);
}
.chapter-video__inner {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: clamp(1.5rem, 4vw, 2.8rem);
}
.chapter-video__no {
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .4em;
  text-transform: uppercase; color: var(--accent-soft);
}
.chapter-video__inner h3 {
  font-family: var(--font-disp); font-weight: 600;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  margin-top: .5rem;
}
.chapter-video__inner p {
  color: var(--ink-dim); font-size: .93rem;
  margin-top: .4rem; max-width: 46em;
}

/* ---------- 大图 figure / figrow ---------- */
.figure { margin: clamp(2.6rem, 7vh, 5rem) 0; }
.figure__media { overflow: hidden; background: #0d0d10; }
.figure__media img { width: 100%; transition: transform 1.4s var(--ease); }
.figure__media:hover img { transform: scale(1.02); }
.figure__cap {
  display: flex; align-items: baseline; gap: 1rem;
  margin-top: 1rem;
  font-size: .95rem; line-height: 1.7; color: var(--ink-faint);
}
.figure__cap .no { font-family: var(--font-mono); font-size: .76rem; color: var(--accent-soft); flex-shrink: 0; }
.figrow { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1rem, 2.5vw, 1.8rem); margin-top: clamp(2rem, 5vh, 3rem); }
.figrow--2 { grid-template-columns: repeat(2, 1fr); }
.figrow .figure { margin: 0; }
@media (max-width: 860px) {
  .figrow, .figrow--2 { grid-template-columns: 1fr; }
  .figrow .figure + .figure { margin-top: 1.4rem; }
}

/* ============================================================
   交互 A · LST 光速变速箱演示
   ============================================================ */
.lst {
  margin-top: clamp(2rem, 5vh, 3.4rem);
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse 60% 80% at 50% 0%, rgba(232,116,42,.05), transparent 60%),
    var(--panel);
  padding: clamp(1.4rem, 3.5vw, 2.6rem);
}
.lst__head {
  display: flex; justify-content: space-between; align-items: baseline;
  flex-wrap: wrap; gap: .6rem;
  margin-bottom: clamp(1.4rem, 3vh, 2.2rem);
}
.lst__title {
  font-family: var(--font-mono);
  font-size: .74rem; letter-spacing: .4em;
  text-transform: uppercase; color: var(--ink-faint);
}
.lst__readout { font-family: var(--font-mono); font-size: .82rem; letter-spacing: .12em; color: var(--ink-dim); }
.lst__readout b { color: var(--accent-soft); font-weight: 500; }
.lst__stage { position: relative; height: 132px; }
.lst__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.lst__arc { fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; }
.lst__rail {
  position: absolute; left: 0; right: 0; top: 96px; height: 1px;
  background: rgba(255,255,255,.16);
}
.lst__gears {
  position: absolute; left: 0; right: 0; top: 0; height: 100%;
  display: flex; justify-content: space-between; align-items: flex-start;
  padding: 0;
}
.lst__gear {
  position: relative;
  width: 36px; height: 36px; flex: none;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--bg-soft);
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-size: 13px;
  display: grid; place-items: center;
  transition: border-color .3s, color .3s, box-shadow .3s, transform .3s var(--ease);
}
.lst__gear:hover { border-color: var(--accent); color: var(--ink); }
.lst__gear.is-cur {
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 16px rgba(232,116,42,.55);
  transform: scale(1.12);
}
.lst__gear-labels {
  position: absolute; left: 0; right: 0; top: 104px;
  display: flex; justify-content: space-between;
}
.lst__gear-labels span {
  width: 36px; flex: none; text-align: center;
  font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .08em;
  color: var(--ink-faint); text-transform: uppercase;
}
.lst__rpm { margin-top: 2.2rem; }
.lst__rpm-head {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .3em;
  color: var(--ink-faint); text-transform: uppercase;
  margin-bottom: .55rem;
}
.lst__rpm-num { color: var(--ink); font-size: .95rem; letter-spacing: .12em; }
.lst__rpm-bar { height: 3px; background: rgba(255,255,255,.1); position: relative; overflow: hidden; }
.lst__rpm-fill {
  position: absolute; inset: 0;
  transform-origin: left;
  transform: scaleX(0);
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-soft) 74%, #ffcf9e 88%, var(--ink) 100%);
}
.lst__foot {
  margin-top: 1.4rem;
  display: flex; gap: 12px; flex-wrap: wrap;
}
.lst__btn {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .3em; text-transform: uppercase;
  padding: 10px 18px;
  border: 1px solid var(--line);
  background: none;
  color: var(--ink-dim);
  transition: all .3s;
}
.lst__btn:hover { border-color: var(--accent); color: var(--ink); }
.lst__btn.is-on { border-color: var(--accent); color: var(--accent-soft); background: rgba(232,116,42,.1); }
.lst__note {
  margin-left: auto; align-self: center;
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .16em;
  color: var(--ink-faint); text-transform: uppercase;
}
@media (max-width: 720px) {
  .lst__gear { width: 26px; height: 26px; font-size: 10.5px; }
  .lst__gear-labels span { width: 26px; font-size: 8px; }
  .lst__stage { height: 108px; }
  .lst__rail { top: 78px; }
  .lst__gear-labels { top: 86px; }
  .lst__note { display: none; }
}

/* ============================================================
   对比模块 ATTACK ↔ ABSOLUT(两种取向)
   ============================================================ */
.compare {
  margin-top: clamp(2.4rem, 6vh, 4rem);
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  border: 1px solid var(--line);
  background: var(--panel);
}
.compare__col { position: relative; padding: 0; min-width: 0; }
.compare__divide {
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--line) 12%, var(--line) 88%, transparent);
}
.compare__media { overflow: hidden; background: #0c0c0e; }
.compare__col--a .compare__media { border-bottom: 2px solid var(--accent); }
.compare__col--b .compare__media { border-bottom: 2px solid var(--ice); }
.compare__media img { width: 100%; height: clamp(168px, 16vw, 230px); object-fit: cover; object-position: center 62%; display: block; filter: saturate(.96); transition: transform 1.2s var(--ease), filter .5s; }
.compare__col:hover .compare__media img { transform: scale(1.03); filter: saturate(1.05); }
.compare__body { padding: clamp(1.3rem, 3vw, 2rem); }
.compare__tag {
  font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .34em;
  text-transform: uppercase;
}
.compare__col--a .compare__tag { color: var(--accent-soft); }
.compare__col--b .compare__tag { color: var(--ice); }
.compare__num {
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(2rem, 4.4vw, 3.2rem);
  line-height: 1; margin: .8rem 0 .3rem;
  letter-spacing: -.01em;
}
.compare__col--a .compare__col--a .compare__num em, .compare__col--b .compare__num em { font-style: normal; color: var(--accent); }
.compare__col--b .compare__col--a .compare__num em, .compare__col--b .compare__num em { font-style: normal; color: var(--ice); }
.compare__num small {
  font-family: var(--font-mono); font-weight: 400;
  font-size: .42em; letter-spacing: .18em;
  color: var(--ink-faint); margin-left: .35em;
  text-transform: uppercase;
}
.compare__lead { font-size: .95rem; color: var(--ink-dim); margin-top: .4rem; line-height: 1.8; }
.compare__rows { list-style: none; margin-top: 1.1rem; border-top: 1px solid var(--line-soft); }
.compare__rows li {
  display: grid; grid-template-columns: 124px 1fr; gap: 1rem;
  padding: .66rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: .9rem;
}
.compare__rows li span {
  font-family: var(--font-mono);
  font-size: .74rem; letter-spacing: .12em;
  color: var(--ink-faint); padding-top: .2em;
}
.compare__rows li b { font-weight: 600; color: var(--ink); font-size: .92rem; }
.compare__foot {
  display: grid; grid-template-columns: 1fr 1fr;
  margin-top: 1.2rem;
  font-family: var(--font-mono);
  font-size: .7rem; letter-spacing: .3em;
  text-transform: uppercase;
}
.compare__foot span:first-child { color: var(--accent-soft); }
.compare__foot span:last-child { text-align: right; color: var(--ice); }
@media (max-width: 760px) {
  .compare { grid-template-columns: 1fr; }
  .compare__divide { width: 100%; height: 1px; background: linear-gradient(90deg, transparent, var(--line) 12%, var(--line) 88%, transparent); }
}

/* ============================================================
   遮盖滚动画廊 gallery(Absolut 章)
   ============================================================ */
.gallery { position: relative; display: flex; flex-direction: row; }
.gallery__texts { width: 100%; position: relative; z-index: 2; }
.g-text {
  min-height: 130vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: clamp(1.25rem, 3.5vw, 2.6rem);
}
.g-text--right { align-items: flex-end; text-align: right; }
.g-text--left { align-items: flex-start; text-align: left; }
.g-text__card {
  max-width: 46ch;
  padding: clamp(1.1rem, 2.6vw, 1.7rem);
  background: rgba(9,9,11,.58);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.09);
  border-right: 2px solid var(--ice);
  box-shadow: 0 18px 50px rgba(0,0,0,.4);
  transition: border-color .5s, transform .6s var(--ease), opacity .5s var(--ease);
}
.g-text--left .g-text__card { border-right: 1px solid rgba(255,255,255,.09); border-left: 2px solid var(--ice); }
.g-text__card.is-out { transform: translateY(-44px); opacity: 0; }
.g-text__card.is-on { border-color: rgba(134,167,195,.5); }
.g-text--left .g-text__card.is-on { border-right-color: rgba(255,255,255,.4); border-left-color: rgba(134,167,195,.55); }
.g-text__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .68rem; letter-spacing: .4em;
  color: var(--ice);
  text-transform: uppercase;
  margin-bottom: .7rem;
}
.g-text__card h3 {
  font-family: var(--font-disp); font-weight: 600;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  line-height: 1.18; letter-spacing: .01em;
}
.g-text__card p { margin-top: .7rem; font-size: .93rem; line-height: 1.75; color: var(--ink-dim); }
.gallery__media { position: absolute; inset: 0; z-index: 1; }
.g-sticky {
  position: sticky; top: 0; height: 100vh;
  overflow: hidden; background: #050506;
}
.g-image {
  position: absolute; inset: 0;
  clip-path: inset(100% 0% 0%);
  will-change: clip-path;
}
.g-image:first-of-type { clip-path: inset(0% 0% 0%); }
.g-image img { width: 100%; height: 100%; object-fit: cover; filter: brightness(1.05); }
.g-image__veil {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(7,7,8,.2) 0%, transparent 32%, transparent 64%, rgba(7,7,8,.3) 100%);
  pointer-events: none;
}
.g-count {
  position: absolute;
  right: clamp(1.2rem, 3.5vw, 2.4rem); top: clamp(5.2rem, 9vh, 6.4rem);
  font-family: var(--font-mono);
  font-size: .76rem; letter-spacing: .32em;
  color: rgba(241,241,243,.75);
  text-shadow: 0 2px 14px rgba(0,0,0,.7);
  z-index: 3; pointer-events: none;
}
.g-count b { font-weight: 500; color: #fff; }
/* 移动端:遮盖滚动退化为交替图文(独立分支) */
@media (max-width: 980px) {
  .gallery { flex-direction: column; }
  .gallery__media { position: relative; inset: auto; }
  .g-sticky { position: relative; top: auto; height: 56vw; }
  .g-image { clip-path: inset(0% 0% 0%) !important; opacity: 0; transition: opacity .6s; }
  .g-image:first-of-type { opacity: 1; }
  .g-image.is-on { opacity: 1; }
  .g-text { min-height: auto; padding: clamp(2rem, 6vw, 3rem) clamp(1.25rem, 5vw, 2.5rem); }
  .g-count { display: none; }
}

/* ---------- 纪录大图卡 record__hero ---------- */
.record__hero {
  position: relative; height: 84vh; min-height: 480px;
  overflow: hidden; background: #000;
}
.record__hero img, .record__hero video { width: 100%; height: 100%; object-fit: cover; }
.record__hero__veil {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(7,7,8,.9) 0%, rgba(7,7,8,.15) 55%);
}
.record__hero__inner {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: clamp(1.6rem, 4vw, 3rem);
}
.record__hero__inner .kicker { margin-bottom: 1rem; }
.record__hero__inner h3 {
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(2rem, 5.4vw, 4.2rem);
  line-height: 1.04; margin-top: .5rem;
}
.record__hero__inner h3 em { font-style: normal; color: var(--accent); }
.record__hero__inner p { color: var(--ink-dim); max-width: 54em; margin-top: .7rem; }

/* ---------- 时间线 rec-line ---------- */
.rec-line { position: relative; margin-top: clamp(2.5rem, 6vh, 4rem); padding: 1rem 0 2.5rem; }
.rec-line::before {
  content: '';
  position: absolute; left: 50%; top: 0; bottom: 0; width: 1px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,.14) 8%, rgba(232,116,42,.65) 92%, transparent);
}
.rec-line__item {
  position: relative;
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: clamp(1.5rem, 3.6vh, 2.4rem) 0;
}
.rec-line__item::before {
  content: '';
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 14px rgba(232,116,42,.5);
  z-index: 2;
}
.rec-line__year {
  position: absolute; left: 0; right: 0; top: 50%;
  transform: translateY(-50%);
  text-align: center;
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(2.6rem, 8vw, 5rem);
  line-height: 1; letter-spacing: .06em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,.07);
  pointer-events: none; user-select: none; z-index: 0;
}
.rec-line__name {
  grid-column: 1; text-align: right;
  padding-right: clamp(2.2rem, 7vw, 5rem);
  font-family: var(--font-disp); font-weight: 600;
  font-size: clamp(1rem, 2vw, 1.3rem);
  line-height: 1.35; position: relative; z-index: 1;
}
.rec-line__name small {
  display: block;
  font-family: var(--font-mono); font-weight: 400;
  font-size: .6em; letter-spacing: .3em;
  color: var(--ink-faint); text-transform: uppercase;
  margin-top: .35rem;
}
.rec-line__val {
  grid-column: 2; text-align: left;
  padding-left: clamp(2.2rem, 7vw, 5rem);
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 2vw, 1.25rem);
  letter-spacing: .06em;
  color: var(--accent-soft);
  white-space: nowrap; position: relative; z-index: 1;
}
.rec-line__val em { font-style: normal; color: var(--ink); }
.rec-line__item:nth-child(even) .rec-line__name { grid-column: 2; text-align: left; padding-left: clamp(2.2rem, 7vw, 5rem); padding-right: 0; }
.rec-line__item:nth-child(even) .rec-line__val { grid-column: 1; text-align: right; padding-right: clamp(2.2rem, 7vw, 5rem); padding-left: 0; }
.rec-line__item--hi::before { box-shadow: 0 0 22px rgba(232,116,42,.95); border-color: var(--accent-soft); }
@media (max-width: 720px) {
  .rec-line::before { left: 5px; }
  .rec-line__item { grid-template-columns: 1fr; padding-left: 1.6rem; }
  .rec-line__item::before { left: 5px; }
  .rec-line__year { font-size: clamp(2rem, 10vw, 3rem); }
  .rec-line__name, .rec-line__val,
  .rec-line__item:nth-child(even) .rec-line__name,
  .rec-line__item:nth-child(even) .rec-line__val {
    grid-column: 1; text-align: left; padding: 0;
  }
  .rec-line__val { margin-top: .4rem; }
}

/* ---------- 规格页签 ---------- */
.spec-tabs { margin-top: clamp(1.6rem, 4vh, 2.6rem); }
.spec-tabs__nav {
  display: flex; flex-wrap: wrap; gap: 8px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1rem;
}
.spec-tabs__btn {
  padding: 10px 18px;
  border: 1px solid var(--line);
  background: rgba(13,14,16,.6);
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-size: .76rem; letter-spacing: .24em;
  text-transform: uppercase;
  transition: color .3s, border-color .3s, background .3s;
}
.spec-tabs__btn:hover { color: var(--ink); }
.spec-tabs__btn.is-on {
  color: #fff;
  border-color: var(--accent);
  background: rgba(232,116,42,.14);
}
.spec-tabs__panel { display: none; animation: panelIn .45s var(--ease); }
.spec-tabs__panel.is-on { display: block; }
@keyframes panelIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.specs__group { padding: 1rem 0; }
.specs__row {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 2rem; padding: .9rem .2rem;
  border-bottom: 1px solid var(--line-soft);
  font-size: .93rem;
}
.specs__row .k { color: var(--ink-faint); }
.specs__row .v { font-family: var(--font-mono); text-align: right; letter-spacing: .04em; }
.specs__row .v .unit { font-size: .78em; color: var(--ink-faint); margin-left: .3em; }
.specs__row--hl .v { color: var(--accent-soft); }
.fine {
  margin-top: clamp(2rem, 5vh, 3rem);
  font-size: .78rem; line-height: 1.8; color: var(--ink-faint);
}
.fine a { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 尾声 epilogue ---------- */
.epilogue { position: relative; min-height: 92svh; overflow: hidden; display: flex; align-items: flex-end; }
.epilogue__media { position: absolute; inset: 0; }
.epilogue__media img, .epilogue__media video { width: 100%; height: 100%; object-fit: cover; }
.epilogue__veil {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(7,7,8,.42), rgba(7,7,8,.1) 40%, rgba(7,7,8,.96) 96%);
}
.epilogue__content {
  position: relative; z-index: 2;
  width: 100%;
  padding: 0 clamp(1.4rem, 5vw, 4rem) clamp(3rem, 8vh, 5rem);
  max-width: var(--w-doc);
  margin: 0 auto;
  text-align: center;
}
.epilogue__content .kicker { justify-content: center; }
.epilogue__content .kicker::before { display: none; }
.epilogue__content h2 {
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.12; max-width: 18em;
}
.epilogue__content h2 em { font-style: normal; color: var(--accent); }
.epilogue__content > p {
  margin-top: 1.2rem; max-width: 40em;
  color: var(--ink-dim);
}
.epilogue__stats {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: clamp(1.6rem, 4vw, 3.4rem);
  margin-top: clamp(1.8rem, 5vh, 2.8rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}
.epilogue__stats > div { min-width: 128px; }
.epilogue__stats > div b {
  font-family: var(--font-disp); font-weight: 700;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem); line-height: 1; display: block;
}
.epilogue__stats > div b em { font-style: normal; color: var(--accent); }
.epilogue__stats > div span {
  font-family: var(--font-mono);
  font-size: .68rem; letter-spacing: .3em;
  color: var(--ink-faint); text-transform: uppercase;
}

/* ---------- 页脚 ---------- */
.footer { margin-top: clamp(4rem, 10vh, 7rem); border-top: 1px solid var(--line); background: var(--bg-soft); }
.footer__portal {
  position: relative; overflow: hidden; text-align: center;
  padding: clamp(3.4rem, 9vh, 5.4rem) 24px;
  border-bottom: 1px solid var(--line);
  background: radial-gradient(ellipse 90% 80% at 50% 0%, rgba(232,116,42,.07), transparent 72%);
}
.footer__portal::before {
  content: 'ÄNGELHOLM';
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  font-size: clamp(48px, 11vw, 150px);
  letter-spacing: .14em; line-height: 1; white-space: nowrap;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255,255,255,.05);
  pointer-events: none; user-select: none;
}
.footer__portal-inner { position: relative; display: flex; flex-direction: column; align-items: center; }
.footer__portal-kicker { font-size: 12px; letter-spacing: .42em; color: var(--accent); margin-bottom: 18px; font-family: var(--font-mono); }
.footer__portal-title { font-family: var(--font-disp); font-weight: 700; font-size: clamp(32px, 5.5vw, 54px); letter-spacing: .05em; line-height: 1.05; color: var(--ink); }
.footer__portal-dot { color: var(--accent); }
.footer__portal-sub { font-size: 13.5px; letter-spacing: .22em; color: var(--ink-dim); margin-top: 12px; margin-bottom: 32px; }
.footer__portal-btn {
  font-family: var(--font-mono);
  font-size: 12.5px; letter-spacing: .26em;
  padding: 14px 34px;
  border: 1px solid var(--line);
  display: inline-block;
  transition: border-color .3s, color .3s, background .3s, box-shadow .3s;
}
.footer__portal-btn:hover { border-color: var(--accent); color: #fff; background: var(--accent); box-shadow: 0 0 34px rgba(232,116,42,.35); }
.footer__contact {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 22px clamp(1.4rem, 5vw, 4rem);
  border-bottom: 1px solid var(--line-soft);
}
.footer__contact-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: .3em; color: var(--ink-faint); }
.footer__contact-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.sbtn {
  display: inline-flex; align-items: center; gap: 13px;
  padding: 12px 18px; min-width: 228px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: rgba(255,255,255,.92);
  transition: transform .35s ease, border-color .35s, background .35s, box-shadow .45s;
}
.sbtn svg { flex: none; width: 22px; height: 22px; opacity: .9; transition: color .3s; }
.sbtn__txt { display: flex; flex-direction: column; align-items: flex-start; gap: 2px; flex: 1; min-width: 0; }
.sbtn__txt b { font-size: 12.5px; letter-spacing: .24em; font-weight: 500; line-height: 1.2; }
.sbtn__txt small { font-size: 10px; letter-spacing: .08em; color: var(--ink-faint); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
.sbtn__arrow { font-style: normal; font-size: 14px; opacity: 0; transform: translateX(-7px); transition: opacity .3s, transform .3s; }
.sbtn:hover { transform: translateY(-3px); }
.sbtn:hover .sbtn__arrow { opacity: 1; transform: none; }
.sbtn--bili:hover { border-color: #00a1d6; background: rgba(0,161,214,.13); box-shadow: 0 14px 34px -14px rgba(0,161,214,.5); }
.sbtn--bili:hover svg { color: #00a1d6; }
.sbtn--yt:hover { border-color: #ff0033; background: rgba(255,0,51,.12); box-shadow: 0 14px 34px -14px rgba(255,0,51,.5); }
.sbtn--yt:hover svg { color: #ff4d66; }
.footer__top {
  display: flex; align-items: center; gap: 30px; flex-wrap: wrap;
  padding: clamp(1.8rem, 5vh, 2.8rem) clamp(1.4rem, 5vw, 4rem) 0;
}
.footer__brand { display: flex; align-items: center; gap: 14px; }
.footer__brand img { height: 15px; width: auto; opacity: .9; }
.footer__links { display: flex; gap: 24px; }
.footer__links a {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .16em;
  color: var(--ink);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, color .3s;
}
.footer__links a:hover { border-color: var(--accent); color: #fff; }
.footer__disclaimer {
  padding: clamp(1.4rem, 4vh, 2.2rem) clamp(1.4rem, 5vw, 4rem) clamp(2rem, 5vh, 3rem);
}
.footer__disclaimer p { color: var(--ink-dim); font-size: 12.5px; line-height: 1.9; max-width: 900px; }
.footer__disclaimer p + p { margin-top: 12px; }
.footer__disclaimer p.mono { color: var(--ink-faint); font-size: 11.5px; }
.footer__disclaimer p.mono a { color: var(--ink-dim); border-bottom: 1px solid var(--line); transition: color .3s; }
.footer__disclaimer p.mono a:hover { color: var(--ink); }

/* ---------- 移动端 nav ---------- */
@media (max-width: 720px) {
  .nav__now { display: none; }
  .nav { padding: 14px 16px; }
  .nav.is-solid { padding: 10px 16px; }
  .nav__ghost { height: 18px; }
  .nav__brand-name { font-size: 13px; letter-spacing: .3em; }
  .scroll-gauge { right: 16px; bottom: 16px; width: 38px; height: 38px; }
  .menu-overlay__nav { grid-template-columns: 1fr; gap: 2px; }
  .menu-overlay__nav a { font-size: 18px; }
}

/* 长图横向安全 */
img, video, svg { max-width: 100%; }