/* ==========================================================
   🌌 AURORA API · Modern Cinema & Editorial Brutalist Design
   Design Benchmark: Vancouver AI Film Project (Northframe Concept)
   Typography: Manrope, Inter, DM Mono
   Palette: Obsidian (#050608), Electric Lime (#b8ff38), Alabaster (#eff0ea)
   Features: Pointer Glow, Cinematic Hero Wash, Hollow Outline Typography,
             Inverted Contrast Editorial Section, 3D Orbit Matrix, Glass Modals
   ========================================================== */

@import url("https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=Inter:wght@400;500;600&family=Manrope:wght@400;500;600;700;800&display=swap");

:root {
  font-family: "Manrope", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  color: #f4f5f7;
  background: #050608;
  font-synthesis: none;
  text-rendering: geometricPrecision;

  /* 核心色彩系统 (温哥华AI短剧项目精调) */
  --paper: #050608;
  --paper-card: #080a0d;
  --paper-elevated: #0f1218;
  --ink: #f4f5f7;
  --muted: #92969f;
  --sub: #64676a;
  --line: rgba(255, 255, 255, 0.14);
  --line-subtle: rgba(255, 255, 255, 0.08);

  /* 标志性高压电光色彩 */
  --electric: #b8ff38;       /* 标志性荧光青柠绿 */
  --electric-glow: rgba(184, 255, 56, 0.25);
  --blue: #6c8cff;
  --amber: #ff9438;
  --coral: #ff6b58;
  --cyan: #2de1d2;
  --violet: #b081ff;

  /* 版心与尺寸 */
  --max: 1560px;
  --pointer-x: 50vw;
  --pointer-y: 35vh;

  /* 字体族 */
  --font-display: 'Manrope', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --font-body: 'Inter', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
}

button, a, input, select {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

::selection {
  color: #050608;
  background: var(--electric);
}

/* ==========================================================
   1. 全局光标跟随微光 (Pointer Glow - Screen Blend)
   ========================================================== */
.pointer-glow {
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  background: radial-gradient(
    380px circle at var(--pointer-x) var(--pointer-y),
    rgba(184, 255, 56, 0.075),
    transparent 68%
  );
  mix-blend-mode: screen;
}

.site-shell {
  position: relative;
  overflow: clip;
}

.page-width {
  width: min(calc(100% - 96px), var(--max));
  margin: 0 auto;
}

/* ==========================================================
   2. 极简黑曜石悬浮顶栏 (Minimalist Site Nav)
   ========================================================== */
.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: 76px;
  padding: 0 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(180deg, rgba(5, 6, 8, 0.88), rgba(5, 6, 8, 0.2) 75%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.wordmark-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: #050608;
  background: var(--electric);
  letter-spacing: -0.05em;
  font-weight: 900;
  font-size: 0.82rem;
  box-shadow: 0 0 20px var(--electric-glow);
}

.nav-live-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  font: 500 0.62rem var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}

.nav-live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--electric);
  box-shadow: 0 0 12px var(--electric);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 36px;
  font: 500 0.72rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.desktop-nav a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.25s ease;
}

.desktop-nav a:hover {
  color: var(--electric);
}

.desktop-nav .button-primary {
  color: #050608 !important;
  font-weight: 800 !important;
}

.desktop-nav .button-primary:hover {
  color: #050608 !important;
}

.nav-btn-highlight {
  color: var(--electric) !important;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ==========================================================
   3. 电影级巨幕 Hero 核心区域 (Cinematic Hero)
   ========================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: end;
  overflow: hidden;
  background: #070a0f;
  padding-bottom: 72px;
}

.hero-image {
  position: absolute;
  inset: -4%;
  width: 108%;
  height: 108%;
  object-fit: cover;
  object-position: center 57%;
  filter: saturate(0.74) contrast(1.15) brightness(0.68);
  pointer-events: none;
}

.hero-wash {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 6, 8, 0.94) 0%, rgba(5, 6, 8, 0.65) 45%, rgba(5, 6, 8, 0.15) 75%),
    linear-gradient(180deg, rgba(5, 6, 8, 0.2), rgba(5, 6, 8, 0.35) 55%, #050608 100%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 10vw 10vw;
  mask-image: linear-gradient(to right, black, transparent 72%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 140px;
  max-width: 1300px;
}

.hero-kicker, .eyebrow {
  margin: 0 0 28px;
  display: flex;
  align-items: center;
  gap: 12px;
  font: 500 0.68rem var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
}

.hero-kicker span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--electric);
  box-shadow: 0 0 22px var(--electric);
}

.hero-title {
  margin: 0;
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  font-family: var(--font-display);
  font-size: clamp(3.8rem, 8.5vw, 8.8rem);
  line-height: 0.88;
  letter-spacing: -0.07em;
  font-weight: 700;
}

.hero-title span {
  display: block;
}

/* 标志性空心描边大字 (温哥华项目核心特征) */
.outline-type {
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.78);
}

.hero-copy {
  max-width: 620px;
  margin: 32px 0 0;
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.05rem;
  line-height: 1.7;
}

.hero-copy strong {
  color: #fff;
  font-weight: 600;
}

.hero-actions {
  margin-top: 36px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

/* 按钮系统 */
.button {
  min-height: 52px;
  padding: 0 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  border: 1px solid transparent;
  font: 600 0.72rem var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #050608 !important;
  font-weight: 800 !important;
  background: var(--electric);
  box-shadow: 0 4px 25px rgba(184, 255, 56, 0.35);
}

.button-primary:hover {
  color: #050608 !important;
  background: #c8ff5e;
  box-shadow: 0 6px 30px rgba(184, 255, 56, 0.5);
}

.button-ghost {
  border-color: var(--line);
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
}

.button-ghost:hover {
  border-color: var(--electric);
  color: var(--electric);
  background: rgba(184, 255, 56, 0.05);
}

.text-link {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  font: 500 0.72rem var(--font-mono);
  text-transform: uppercase;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
  padding-bottom: 4px;
  color: rgba(255, 255, 255, 0.85);
  transition: all 0.2s ease;
}

.text-link:hover {
  color: var(--electric);
  border-color: var(--electric);
}

/* 4列硬核技术指标栏 (Hero Rail) */
.hero-rail {
  margin-top: 60px;
  padding-top: 22px;
  width: min(100%, 1020px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font: 500 0.64rem var(--font-mono);
  color: rgba(255, 255, 255, 0.65);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-rail strong {
  display: block;
  color: #fff;
  font-size: 0.72rem;
  margin-top: 4px;
}

/* 垂直滚动提示 */
.scroll-cue {
  position: absolute;
  right: 48px;
  bottom: 44px;
  z-index: 3;
  display: flex;
  gap: 14px;
  align-items: center;
  writing-mode: vertical-rl;
  font: 500 0.62rem var(--font-mono);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}

.scroll-cue i {
  width: 1px;
  height: 58px;
  background: linear-gradient(var(--electric), transparent);
}

/* ==========================================================
   4. 核心端点与凭证控制卡片 (Brutalist Endpoint Bar)
   ========================================================== */
.endpoint-rail-box {
  margin-top: 42px;
  background: rgba(8, 10, 13, 0.85);
  border: 1px solid var(--line);
  backdrop-filter: blur(16px);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  position: relative;
  overflow: hidden;
}

.endpoint-rail-cell {
  padding: 22px 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.endpoint-rail-cell:first-child {
  border-right: 1px solid var(--line);
}

.rail-cell-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font: 500 0.65rem var(--font-mono);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.rail-cell-actions {
  display: flex;
  gap: 8px;
}

.btn-rail-action {
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  font: 500 0.62rem var(--font-mono);
  color: #fff;
  text-transform: uppercase;
  transition: all 0.2s ease;
}

.btn-rail-action:hover {
  background: var(--electric);
  color: #050608;
  border-color: var(--electric);
}

.rail-code-val {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--electric);
  word-break: break-all;
}

/* ==========================================================
.section-number {
  font: 500 0.72rem var(--font-mono);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* ==========================================================
   6. 算力包选购矩阵 (Pricing & Capacity Index)
   ========================================================== */
.work-section {
  padding: 100px 0 160px;
  background: #080a0d;
  border-top: 1px solid var(--line);
}

.work-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
}

.work-heading h2, .process-title h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3.8rem, 7.5vw, 8rem);
  line-height: 0.88;
  letter-spacing: -0.065em;
  font-weight: 600;
}

.work-heading > p {
  max-width: 420px;
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.65;
}

/* 过滤圆角药丸条 */
.filter-bar {
  margin-top: 54px;
  padding: 16px 0;
  display: flex;
  gap: 10px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
}

.filter-bar button {
  flex: 0 0 auto;
  padding: 8px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  font: 500 0.68rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  transition: all 0.2s ease;
}

.filter-bar button.active {
  color: #050608;
  background: var(--electric);
}

.filter-bar sup {
  margin-left: 5px;
  font-size: 0.52rem;
}

/* 算力卡片网格 */
.pricing-grid {
  padding-top: 36px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.pricing-card {
  background: rgba(13, 17, 24, 0.7);
  border: 1px solid var(--line);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, background 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--electric);
  background: rgba(18, 24, 34, 0.9);
}

.pricing-card.card-featured {
  border: 1.5px solid var(--electric);
  background: rgba(18, 26, 32, 0.85);
  box-shadow: 0 0 40px rgba(184, 255, 56, 0.15);
}

.card-top-indicator {
  font: 500 0.64rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--electric);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pkg-name-text {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
  color: #fff;
}

.pkg-price-large {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 14px;
}

.price-currency-sym {
  font-size: 1.2rem;
  color: var(--muted);
}

.price-big-number {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1;
  color: #fff;
}

.price-validity-tag {
  font: 500 0.65rem var(--font-mono);
  color: var(--muted);
  text-transform: uppercase;
}

.pkg-tokens-box {
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-subtle);
  margin-bottom: 22px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--electric);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pkg-feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  font-size: 0.86rem;
  color: var(--muted);
  line-height: 1.5;
}

.pkg-feature-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.pkg-feature-list li::before {
  content: '→';
  color: var(--electric);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.btn-purchase-card {
  width: 100%;
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line);
  font: 600 0.7rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fff;
  transition: all 0.25s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.pricing-card:hover .btn-purchase-card,
.pricing-card.card-featured .btn-purchase-card {
  background: var(--electric);
  color: #050608;
  border-color: var(--electric);
}

/* ==========================================================
   7. 官方精选模型矩阵 (3D Wireframe Orbit Matrix)
   ========================================================== */
.formats {
  padding: 130px 0 170px;
  border-top: 1px solid var(--line);
}

.format-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.format-grid article {
  min-height: 340px;
  padding: 34px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.35s ease, border-color 0.35s ease;
  cursor: pointer;
  position: relative;
}

.format-grid article:hover {
  background: rgba(255, 255, 255, 0.035);
  border-color: var(--electric);
}

/* 标志性 3D 旋转线框轨道 (温哥华项目标志性动效) */
.format-orbit {
  position: relative;
  margin: 0 auto auto;
  width: 110px;
  height: 110px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  animation: orbit 14s linear infinite;
}

.format-orbit::before, .format-orbit::after {
  content: "";
  position: absolute;
  width: 64px;
  height: 64px;
  border: 1px solid rgba(184, 255, 56, 0.45);
  border-radius: 50%;
  transform: rotateX(70deg);
}

.format-orbit::after {
  transform: rotateY(70deg);
}

.format-orbit i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--electric);
  box-shadow: 0 0 22px var(--electric);
}

@keyframes orbit {
  to { transform: rotate(360deg); }
}

.model-article-bottom {
  margin-top: 24px;
}

.model-article-id {
  font: 500 0.7rem var(--font-mono);
  color: var(--electric);
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}

.format-grid h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: #fff;
}

.format-grid p {
  margin: 8px 0 0;
  font: 400 0.82rem var(--font-body);
  color: var(--muted);
  line-height: 1.5;
}

.model-rate-tag {
  display: inline-block;
  margin-top: 12px;
  font: 500 0.62rem var(--font-mono);
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
}

/* ==========================================================
   8. 标志性白底反转高对比章节 (Inverted Editorial Section)
   温哥华项目的核心设计灵魂：极暗到极亮的杂志感突变
   ========================================================== */
.process-section {
  padding: 150px 0;
  background: #eff0ea;
  color: #0c0d0f;
}

.process-sticky {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 8vw;
  align-items: start;
}

.process-title {
  position: sticky;
  top: 130px;
}

.process-title .eyebrow {
  color: #526e1c;
}

.process-title h2 {
  font-size: clamp(3.6rem, 6.5vw, 6.8rem);
  line-height: 0.9;
  letter-spacing: -0.06em;
  color: #0c0d0f;
}

.process-list {
  border-top: 1px solid rgba(0, 0, 0, 0.22);
}

.process-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px 24px;
  padding: 32px 0 40px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.22);
}

.process-step > span {
  grid-row: span 2;
  font: 500 0.72rem var(--font-mono);
  color: #526e1c;
}

.process-step h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.3vw, 2.3rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  color: #0c0d0f;
}

.process-step p {
  margin: 0;
  max-width: 580px;
  color: #525558;
  line-height: 1.7;
  font-size: 0.95rem;
}

.process-code-inline {
  display: inline-block;
  padding: 2px 6px;
  background: rgba(0, 0, 0, 0.08);
  font-family: var(--font-mono);
  font-size: 0.85em;
  border-radius: 4px;
  color: #1a1a1a;
}

/* ==========================================================
   9. macOS 拟真 Dark IDE 交互终端 (Playground Section)
   ========================================================== */
.playground-section {
  padding: 120px 0 160px;
  border-top: 1px solid var(--line);
  background: var(--paper);
}

.ide-terminal-wrapper {
  margin-top: 48px;
  background: #020408;
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.9);
}

.ide-title-bar {
  padding: 14px 20px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ide-mac-dots {
  display: flex;
  gap: 8px;
}

.mac-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-close { background: #ff5f56; }
.dot-min { background: #ffbd2e; }
.dot-max { background: #27c93f; }

.ide-tab-label {
  font: 500 0.65rem var(--font-mono);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ide-body {
  padding: 28px;
}

.ide-control-row {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
}

.ide-prompt-symbol {
  font: 500 0.72rem var(--font-mono);
  color: var(--electric);
  white-space: nowrap;
}

.ide-select, .ide-input {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  color: #fff;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.ide-select:focus, .ide-input:focus {
  border-color: var(--electric);
}

.ide-input {
  flex: 1;
}

.btn-ide-run {
  padding: 10px 22px;
  background: var(--electric);
  color: #050608;
  font: 700 0.72rem var(--font-mono);
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-ide-run:hover {
  background: #c8ff5e;
  transform: translateY(-1px);
}

.ide-output-screen {
  background: #010204;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px;
  min-height: 200px;
  max-height: 480px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.7;
  color: #f1f5f9;
  white-space: pre-wrap;
  word-break: break-all;
}

/* ==========================================================
   10. 底部呼吁与页脚 (Contact & Footer)
   ========================================================== */
.contact-section {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-top: 1px solid var(--line);
}

.contact-bg {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 65% 48%, rgba(108, 140, 255, 0.22), transparent 32%),
    radial-gradient(circle at 72% 55%, rgba(184, 255, 56, 0.12), transparent 22%);
  filter: blur(20px);
  pointer-events: none;
}

.contact-inner {
  position: relative;
  z-index: 1;
  padding: 100px 0;
}

.contact-inner h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3.8rem, 8.5vw, 9rem);
  line-height: 0.88;
  letter-spacing: -0.07em;
  font-weight: 600;
}

.contact-inner h2 span {
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.6);
}

.contact-copy {
  max-width: 580px;
  margin: 34px 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 1.05rem;
}

.contact-action {
  margin-top: 64px;
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  font: 500 0.68rem var(--font-mono);
  color: var(--muted);
  text-transform: uppercase;
}

.footer {
  min-height: 100px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 40px;
  align-items: center;
  border-top: 1px solid var(--line);
  font: 500 0.62rem var(--font-mono);
  color: var(--muted);
  text-transform: uppercase;
}

/* ==========================================================
   11. 现代黑曜石玻璃模态框与 Toast
   ========================================================== */
.glass-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 6, 8, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.glass-modal-card {
  width: 100%;
  max-width: 540px;
  background: #080b10;
  border: 1px solid var(--line);
  padding: 32px 36px;
  color: #fff;
  position: relative;
  transform: scale(0.95) translateY(16px);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.95);
}

.glass-modal-backdrop.show .glass-modal-card {
  transform: scale(1) translateY(0);
}

.glass-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.glass-modal-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

.glass-modal-close {
  width: 32px;
  height: 32px;
  border: 1px solid var(--line);
  color: var(--muted);
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.glass-modal-close:hover {
  border-color: #ff5f56;
  color: #ff5f56;
}

.glass-modal-body {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--muted);
  margin-bottom: 24px;
}

.glass-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 14px;
}

.btn-modal-cancel {
  padding: 10px 20px;
  border: 1px solid var(--line);
  font: 500 0.68rem var(--font-mono);
  color: var(--muted);
  text-transform: uppercase;
}

.btn-modal-confirm {
  padding: 10px 24px;
  background: var(--electric);
  color: #050608;
  font: 700 0.68rem var(--font-mono);
  text-transform: uppercase;
  border: none;
  cursor: pointer;
}

.modal-input {
  width: 100%;
  padding: 12px 16px;
  margin-top: 12px;
  background: #020408;
  border: 1px solid var(--line);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  outline: none;
}

.modal-input:focus {
  border-color: var(--electric);
}

/* 吐司通知 */
.modern-toast {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: #080b10;
  border: 1px solid var(--electric);
  color: #fff;
  padding: 12px 24px;
  font: 500 0.72rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 3000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8), 0 0 25px rgba(184, 255, 56, 0.2);
}

.modern-toast.show {
  transform: translateY(0);
  opacity: 1;
}

.btn-copied-success {
  background: var(--electric) !important;
  color: #050608 !important;
  border-color: var(--electric) !important;
}

/* ==========================================================
   11.5 官方模型全景对照表 (Model Matrix Table & Filters)
   ========================================================== */
.model-table-card {
  margin-top: 36px;
  background: rgba(13, 17, 24, 0.85);
  border: 1px solid var(--line);
  padding: 24px;
  border-radius: 4px;
}

.model-table-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.model-filter-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font: 500 0.72rem var(--font-mono);
  padding: 6px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.model-filter-btn:hover {
  border-color: #fff;
  color: #fff;
}

.model-filter-btn.active {
  background: var(--electric);
  border-color: var(--electric);
  color: #050608;
  font-weight: 700;
}

.model-filter-btn sup {
  font-size: 0.62rem;
  opacity: 0.85;
}

.table-responsive-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.matrix-table th {
  font: 600 0.7rem var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.matrix-table td {
  padding: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  vertical-align: middle;
  line-height: 1.5;
}

.matrix-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.matrix-table tr:last-child td {
  border-bottom: none;
}

.model-id-badge {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 4px 10px;
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.model-category-pill {
  font: 500 0.65rem var(--font-mono);
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
  color: var(--electric);
  background: rgba(184, 255, 56, 0.08);
  border: 1px solid rgba(184, 255, 56, 0.3);
}

.pill-code,
.pill-chat,
.pill-reason,
.pill-chinese,
.pill-pro,
.pill-literary,
.pill-compat,
.pill-image {
  color: var(--electric);
  background: rgba(184, 255, 56, 0.08);
  border: 1px solid rgba(184, 255, 56, 0.3);
}

.capability-tag {
  font: 600 0.62rem var(--font-mono);
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 6px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  vertical-align: middle;
}
.cap-vision {
  background: rgba(184, 255, 56, 0.15);
  color: var(--electric);
  border: 1px solid rgba(184, 255, 56, 0.4);
}
.cap-chatgpt {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.cap-text {
  background: rgba(34, 211, 238, 0.1);
  color: #22d3ee;
  border: 1px solid rgba(34, 211, 238, 0.35);
}

.model-search-box {
  background: rgba(2, 6, 23, 0.8);
  border: 1px solid var(--line);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 8px 14px;
  border-radius: 4px;
  outline: none;
  min-width: 260px;
  transition: border-color 0.2s;
}
.model-search-box:focus {
  border-color: var(--electric);
}

.rate-badge {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
  white-space: nowrap;
}

.btn-copy-model {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.72rem;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-copy-model:hover {
  border-color: var(--electric);
  color: var(--electric);
}

/* ==========================================================
   11.5 7 大核心算力阵营全景看板与 62+ 模型速查库
   ========================================================== */
.cluster-overview-wrap {
  margin-bottom: 28px;
  background: rgba(13, 17, 24, 0.6);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px 26px;
  position: relative;
  overflow: hidden;
}

.cluster-hud-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}

.cluster-hud-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cluster-hud-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--electric);
}

.cluster-hud-label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-mono);
}

.clusters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 16px;
}

.cluster-card {
  background: rgba(18, 24, 34, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 6px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.cluster-card:hover {
  transform: translateY(-3px);
  border-color: rgba(184, 255, 56, 0.4);
  background: rgba(22, 30, 42, 0.9);
  box-shadow: 0 10px 24px -8px rgba(0, 0, 0, 0.5);
}

.cluster-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cluster-card-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
}

.cluster-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.08);
  color: #cbd5e1;
}

.cluster-pricing-banner {
  background: rgba(184, 255, 56, 0.06);
  border: 1px dashed rgba(184, 255, 56, 0.3);
  padding: 8px 12px;
  border-radius: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.cluster-price-val {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--electric);
}

.cluster-price-sub {
  font-size: 0.72rem;
  color: var(--muted);
}

.cluster-model-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.cluster-chip {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 3px 7px;
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.cluster-chip:hover {
  border-color: var(--electric);
  color: var(--electric);
  background: rgba(184, 255, 56, 0.08);
}

.cluster-footer-action {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 6px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.btn-cluster-filter {
  background: transparent;
  border: none;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
  padding: 0;
}

.btn-cluster-filter:hover {
  color: var(--electric);
}

/* 62款模型速查折叠抽屉 */
.full-drawer-toggle {
  margin-top: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
}

.full-drawer-toggle:hover {
  border-color: var(--electric);
  background: rgba(184, 255, 56, 0.04);
}

.full-drawer-content {
  display: none;
  margin-top: 16px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.full-drawer-content.active {
  display: block;
}

.full-models-category-block {
  margin-bottom: 20px;
  background: rgba(10, 14, 20, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  padding: 16px 18px;
}

.full-models-category-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================================
   12. 响应式布局媒体查询 (Mobile Breakpoints)
   ========================================================== */
@media (max-width: 980px) {
  .page-width { width: min(calc(100% - 48px), var(--max)); }
  .site-nav { padding: 0 24px; }
  .desktop-nav { display: none; }
  .hero-title { font-size: clamp(3.6rem, 12vw, 6.8rem); }
  .hero-rail { grid-template-columns: repeat(2, 1fr); }
  .scroll-cue { display: none; }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .format-grid { grid-template-columns: 1fr; }
  .process-sticky { grid-template-columns: 1fr; gap: 40px; }
  .process-title { position: static; }
  .endpoint-rail-box { grid-template-columns: 1fr; }
  .endpoint-rail-cell:first-child { border-right: none; border-bottom: 1px solid var(--line); }
}

@media (max-width: 640px) {
  .page-width { width: min(calc(100% - 32px), var(--max)); }
  .site-nav { height: 66px; padding: 0 16px; }
  .wordmark-mark { width: 32px; height: 32px; }
  .hero-content { padding-top: 110px; padding-bottom: 40px; }
  .hero { min-height: 800px; }
  .hero-title { font-size: clamp(3.2rem, 16vw, 5.2rem); }
  .hero-actions { flex-direction: column; align-items: flex-start; gap: 16px; }
  .hero-rail { grid-template-columns: 1fr; gap: 10px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .process-section { padding: 90px 0; }
  .footer { grid-template-columns: 1fr; gap: 14px; padding: 30px 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .pointer-glow { display: none; }
}