/* ============================================================
   ForkScale — Polished Stylesheet
   字体: Fraunces (display) + IBM Plex Sans (text) + IBM Plex Mono (data)
   反 AI 味: 去径向渐变光晕堆叠 / 收敛玻璃拟态 / eyebrow 规则化
   动效: 缓动三件套 / 按压反馈 / hover 指针限定 / reveal stagger
   ============================================================ */

:root {
  /* Brand — indigo (ref: seo-audit-report design system) */
  --brand: #4f46e5;
  --brand-dark: #4338ca;
  --brand-hover: #3730a3;
  --brand-soft: #eef2ff;

  /* Accents — semantic palette */
  --accent-blue: #0ea5e9;
  --accent-blue-dark: #0284c7;
  --accent-blue-soft: #f0f9ff;
  --accent-warm: #f59e0b;
  --accent-warm-dark: #b45309;
  --accent-warm-soft: #fffbeb;
  --accent-violet: #7c3aed;
  --accent-violet-dark: #6d28d9;
  --accent-violet-soft: #f5f3ff;
  --accent-amber-soft: #fef3c7;

  /* Neutrals — cool slate (ref: seo-audit-report) */
  --ink: #0f172a;
  --ink-2: #475569;
  --muted: #64748b;
  --canvas: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --error: #ef4444;

  /* Radii */
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-pill: 999px;

  /* Shadows — slate-tinted + primary glow */
  --shadow-1:
    0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 1px rgba(15, 23, 42, 0.03);
  --shadow-2:
    0 20px 48px -12px rgba(15, 23, 42, 0.09),
    0 4px 12px -4px rgba(15, 23, 42, 0.05);
  --shadow-brand:
    0 24px 80px -12px rgba(79, 70, 229, 0.18),
    0 8px 24px -8px rgba(79, 70, 229, 0.22);

  /* Motion — 缓动三件套 */
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --ease-drawer: cubic-bezier(0.32, 0.72, 0, 1);
  --dur-fast: 140ms;
  --dur-base: 200ms;
  --dur-slow: 320ms;

  /* Type */
  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-sans:
    "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "PingFang SC",
    "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", "Cascadia Code", Consolas, monospace;

  --max: 1280px;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  overflow-x: hidden;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  font-feature-settings: "ss01", "cv11";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body.no-scroll {
  overflow: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select,
textarea {
  font: inherit;
}
button,
a,
input,
select,
textarea {
  -webkit-tap-highlight-color: transparent;
}

/* Focus — 品牌环 + 暗环兜底 */
:focus-visible {
  outline: 0;
  box-shadow:
    0 0 0 3px var(--canvas),
    0 0 0 5px rgba(79, 70, 229, 0.5);
  border-radius: 4px;
}
:focus:not(:focus-visible) {
  box-shadow: none;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  left: 16px;
  top: -60px;
  padding: 12px 18px;
  background: var(--ink);
  color: white;
  border-radius: 10px;
  transition: top var(--dur-base) var(--ease-out);
}
.skip-link:focus {
  top: 16px;
}

.container {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}
.narrow {
  width: min(calc(100% - 48px), 820px);
  margin-inline: auto;
}
.section {
  padding: 52px 0 52px 0;
}
.section-sm {
  padding: 72px 0;
}
.surface {
  background: var(--surface);
}

/* Dark section — 纯 ink 底, 去掉双径向渐变光晕; 顶部一道极细品牌高光 */
.dark {
  background: var(--ink);
  color: white;
  position: relative;
}
.dark::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(79, 70, 229, 0.4),
    transparent
  );
}

/* Soft section — 纯 brand-soft, 不再叠光晕 */
.soft {
  background: var(--brand-soft);
}

/* Eyebrow — 保留样式, 数量由 HTML 控制 (≤ ⌈section/3⌉) */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--brand-dark);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}
.dark .eyebrow {
  color: #8cf3ac;
}

/* Headings — Fraunces 可变光学尺寸 */
h1,
h2,
h3,
h4,
.display {
  margin: 0;
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-variation-settings:
    "opsz" 96,
    "SOFT" 30;
  letter-spacing: -0.025em;
  line-height: 1.05;
  font-weight: 500;
  text-wrap: balance;
}
h1 {
  font-size: clamp(3rem, 6.2vw, 5.5rem);
  font-weight: 480;
  font-variation-settings:
    "opsz" 144,
    "SOFT" 50;
}
h2 {
  font-size: clamp(2.3rem, 4.2vw, 3.8rem);
  font-weight: 500;
}
h3 {
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  font-weight: 550;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
  color: var(--ink-2);
}
.dark p {
  color: rgba(255, 255, 255, 0.72);
}
.lead {
  margin-top: 24px;
  max-width: 690px;
  font-size: clamp(1.08rem, 1.7vw, 1.28rem);
  line-height: 1.6;
}
.muted {
  color: var(--muted);
}
.center {
  text-align: center;
}
.center .lead,
.center .section-head {
  margin-inline: auto;
}
.section-head {
  max-width: 760px;
  margin-bottom: 56px;
}
.section-head p {
  margin-top: 20px;
  font-size: 1.08rem;
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}
.center .btn-row {
  justify-content: center;
}

/* Buttons — 按压反馈 + 逐属性 transition */
.btn {
  min-height: 54px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-sans);
  transition:
    transform var(--dur-fast) var(--ease-out),
    background var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}
.btn:active {
  transform: scale(0.97);
}
.btn-primary {
  background: var(--brand-dark);
  color: white;
  box-shadow: var(--shadow-brand);
}
.btn-secondary {
  background: white;
  color: var(--ink);
  border-color: var(--border-strong);
}
.btn-white {
  background: white;
  color: var(--ink);
}
.btn-ghost {
  border-color: rgba(255, 255, 255, 0.25);
  color: white;
}

@media (hover: hover) and (pointer: fine) {
  .btn:hover {
    transform: translateY(-2px);
  }
  .btn-primary:hover {
    background: var(--brand-hover);
  }
  .btn-secondary:hover {
    background: var(--canvas);
    border-color: var(--ink-2);
  }
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-weight: 600;
  color: var(--brand-dark);
  transition: color var(--dur-base) var(--ease-out);
}
.text-link::after {
  content: "→";
  transition: transform var(--dur-base) var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .text-link:hover {
    color: var(--brand-hover);
  }
  .text-link:hover::after {
    transform: translateX(4px);
  }
}
.text-link.is-disabled,
.text-link.is-disabled:hover {
  color: var(--muted);
  opacity: 0.52;
  cursor: not-allowed;
}
.text-link.is-disabled:hover::after {
  transform: none;
}

/* Announcement bar */
.announcement {
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--ink);
  color: white;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}
.announcement a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Header — sticky, blur, scrolled 加 border */
.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  height: 76px;
  background: rgba(250, 250, 247, 0.85);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition:
    border-color var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out);
}
.site-header.scrolled {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.92);
}
.nav {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}
.brand-logo {
  width: 38px;
  height: 38px;
  display: block;
  flex: 0 0 auto;
}
.brand-name {
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1;
}
.site-footer .brand-name {
  color: var(--ink);
}
.brand-name-img {
  display: block;
  width: auto;
  height: 24px;
  flex: 0 0 auto;
}
.footer-social {
  display: flex;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: #fff;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}
.social-icon svg {
  width: 18px;
  height: 18px;
}
.social-icon:hover {
  transform: translateY(-2px);
  opacity: 0.92;
  box-shadow: 0 6px 16px rgba(2, 6, 23, 0.28);
}
.social-fb {
  background: #1877f2;
}
.social-ig {
  background: #e1306c;
  background: linear-gradient(45deg, #f09433, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888);
}
.social-wa {
  background: #25d366;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a {
  color: var(--ink-2);
  transition: color var(--dur-fast) var(--ease-out);
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--ink);
}
.nav-links a.active {
  font-weight: 600;
}
.nav-links a[href="/case-studies.html"] {
  display: none;
}
.nav-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}
.nav-actions .btn {
  min-height: 44px;
  padding-inline: 19px;
}
.language-switch {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: white;
}
.language-switch button {
  min-width: 38px;
  min-height: 36px;
  padding: 0 10px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: var(--font-mono);
}
.language-switch button[aria-pressed="true"] {
  background: var(--ink);
  color: white;
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  background: white;
  border-radius: 50%;
  cursor: pointer;
  transition:
    border-color var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out);
}
.menu-toggle:hover {
  border-color: var(--border-strong);
}
.menu-toggle svg {
  width: 22px;
  height: 22px;
}

/* Hero — 去双径向渐变 + 装饰圆环 + 暖光斑; 改纯 canvas + 极克制染色 */
.hero {
  padding: 88px 0 108px;
  overflow: hidden;
  position: relative;
  background: var(--canvas);
}
.hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(79, 70, 229, 0.35) 30%,
    rgba(79, 70, 229, 0.35) 70%,
    transparent
  );
}
.hero-grid {
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 72px;
  align-items: center;
}
.hero h1 {
  max-width: 760px;
}
.hero-copy {
  min-width: 0;
}
.hero-visual {
  min-height: 590px;
  position: relative;
  display: grid;
  place-items: center;
}

/* Dashboard — 保留 backdrop (浮层语义) 但提实 */
.dashboard {
  width: 100%;
  max-width: 660px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--border);
  border-radius: 30px;
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transform: rotate(1deg);
}
.dash-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 4px 16px;
}
.dots {
  display: flex;
  gap: 6px;
}
.dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #cbd5e1;
}
.dots i:nth-child(1) {
  background: var(--accent-warm);
}
.dots i:nth-child(2) {
  background: #f2bf4f;
}
.dots i:nth-child(3) {
  background: var(--brand);
}
.sample {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
  font-family: var(--font-mono);
}
.dash-main {
  padding: 26px;
  background: #f8fafc;
  border-radius: 20px;
}
.dash-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}
.dash-heading small {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}
.dash-heading strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 550;
  font-size: 1.35rem;
  margin-top: 5px;
  letter-spacing: -0.02em;
}
.trend {
  color: var(--brand-dark);
  font-weight: 600;
  background: var(--brand-soft);
  padding: 6px 10px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.chart {
  height: 170px;
  margin: 22px 0;
  position: relative;
  border-bottom: 1px solid #ddd;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 41px,
    #e6e7e3 42px
  );
  overflow: hidden;
}
.chart svg {
  width: 100%;
  height: 100%;
}
.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.metric {
  padding: 15px;
  border: 1px solid var(--border);
  background: white;
  border-radius: 14px;
}
.metric small {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
}
.metric strong {
  display: block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.2rem;
  font-variant-numeric: tabular-nums;
}

/* Phone stack — overlapping portrait screenshots */
.phone-card {
  position: absolute;
  right: -8px;
  bottom: 22px;
  width: 430px;
  height: 460px;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  transform: none;
  pointer-events: none;
}
.phone-stack {
  position: relative;
  isolation: isolate;
  width: 100%;
  height: 100%;
  overflow: visible;
}
.phone-shot {
  position: absolute;
  display: block;
  width: 150px;
  max-width: 100%;
  height: auto;
  border-radius: 18px;
  border: 3px solid transparent;
  background: transparent;
}
.phone-shot-1 {
  left: 45px;
  bottom: 70px;
  width: 132px;
  transform: rotate(-7deg);
  transform-origin: bottom center;
  z-index: 1;
}
.phone-shot-2 {
  left: 142px;
  bottom: 28px;
  width: 156px;
  transform: rotate(2deg);
  transform-origin: bottom center;
  z-index: 3;
}
.phone-shot-3 {
  right: 36px;
  bottom: 64px;
  width: 128px;
  transform: rotate(9deg);
  transform-origin: bottom center;
  z-index: 2;
}

/* Map pill — 删 float keyframes, 改静态 */
.map-pill {
  position: absolute;
  left: -25px;
  top: 70px;
  padding: 14px 18px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-2);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 500;
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}
.trust-line span::before {
  content: "✓";
  color: var(--brand-dark);
  margin-right: 7px;
}

/* Logo rail — 去渐变, 改纯色 + 分割线 */
.logo-rail {
  padding: 34px 0;
  border-block: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
}
.logo-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  color: var(--ink-2);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.93rem;
  letter-spacing: -0.01em;
}
.logo-row > span:first-child {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* Card — hover 限定指针, 逐属性 */
.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px;
  box-shadow: var(--shadow-1);
  transition:
    transform var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .card:hover {
    transform: translateY(-3px);
    border-color: var(--border-strong);
    box-shadow: 0 12px 28px -8px rgba(20, 20, 15, 0.1);
  }
}
.card h3 {
  margin-top: 18px;
}
.card p {
  margin-top: 12px;
}
.icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  flex: 0 0 48px;
  border-radius: 14px;
  color: var(--brand-dark);
  background: var(--brand-soft);
}
.icon svg {
  width: 24px;
  height: 24px;
  display: block;
}
.grid-2 > .card:nth-child(2n) .icon,
.grid-3 > .card:nth-child(3n + 2) .icon,
.grid-4 > .card:nth-child(4n + 2) .icon {
  color: var(--accent-blue-dark);
  background: var(--accent-blue-soft);
}
.grid-3 > .card:nth-child(3n) .icon,
.grid-4 > .card:nth-child(4n + 3) .icon {
  color: var(--accent-warm-dark);
  background: var(--accent-warm-soft);
}
.grid-4 > .card:nth-child(4n) .icon {
  color: var(--accent-violet-dark);
  background: var(--accent-violet-soft);
}

/* Pain grid */
.pain-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 64px;
  align-items: center;
}
.pain-list {
  display: grid;
  gap: 10px;
  margin-top: 34px;
}
.pain-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  text-align: left;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: transparent;
  cursor: pointer;
  color: var(--ink-2);
  font-weight: 500;
  transition:
    background var(--dur-base) var(--ease-out),
    color var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}
.pain-item:hover {
  border-color: var(--border-strong);
}
.pain-item.active {
  background: white;
  color: var(--ink);
  border-color: var(--brand);
  box-shadow: var(--shadow-1);
}
.pain-number {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #eee;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 600;
}
.pain-item.active .pain-number {
  background: var(--brand);
  color: #ffffff;
}
.pain-visual {
  aspect-ratio: 5504 / 3040;
  min-height: 0;
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  background: var(--ink);
  color: white;
}
.pain-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    to top,
    rgba(15, 23, 42, 0.72) 0%,
    rgba(15, 23, 42, 0.2) 42%,
    transparent 64%
  );
}
.pain-photo {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease-out);
}
.pain-photo.is-active {
  opacity: 1;
}
.pain-panel {
  position: absolute;
  inset: auto 28px 28px;
  z-index: 2;
  padding: 26px;
  background: rgba(20, 20, 15, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(10px);
}
.pain-panel p {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.78);
}

/* Stat row */
.stat-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 34px 28px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}
.stat:last-child {
  border: 0;
}
.stat strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 480;
  font-size: clamp(2.2rem, 4vw, 4rem);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  font-optical-sizing: auto;
}
.stat span {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}

/* Service bento */
.service-bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 22px;
}
.service-card {
  grid-column: span 6;
  min-height: 340px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 34px 36px;
  background: linear-gradient(145deg, #fff 48%, #edfbf1 100%);
}
.service-card::after {
  content: "";
  position: absolute;
  width: 190px;
  height: 190px;
  right: -66px;
  top: -72px;
  border-radius: 50%;
  background: var(--brand-soft);
  opacity: 0.72;
  transition: transform var(--dur-base) var(--ease-out);
}
.service-card > * {
  position: relative;
  z-index: 1;
}
.service-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 38px;
}
.service-number {
  position: absolute;
  top: -16px;
  right: -21px;
  font-family: var(--font-mono);
  font-size: clamp(3.1rem, 6vw, 5.1rem);
  font-weight: 700;
  line-height: 0.8;
  letter-spacing: -0.08em;
  color: var(--brand-dark);
  opacity: 0.13;
  pointer-events: none;
  user-select: none;
}
.service-kicker {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-dark);
}
.service-card h3 {
  margin-top: 9px;
  font-size: clamp(1.55rem, 2.2vw, 2.05rem);
}
.service-card p {
  max-width: 52ch;
}
.service-card .text-link {
  margin-top: auto;
  padding-top: 24px;
  align-self: flex-start;
}
@media (hover: hover) and (pointer: fine) {
  .service-card:hover::after {
    transform: scale(1.08);
  }
}
.service-card:nth-child(2) {
  background: linear-gradient(145deg, #fff 48%, #eef0ff 100%);
}
.service-card:nth-child(2)::after,
.service-card:nth-child(4)::after {
  background: var(--accent-blue-soft);
}
.service-card:nth-child(2) .icon,
.service-card:nth-child(4) .icon {
  color: var(--accent-blue-dark);
  background: #e5e9ff;
}
.service-card:nth-child(3)::after {
  background: var(--accent-warm-soft);
}
.service-card:nth-child(3) {
  background: linear-gradient(145deg, #fff 48%, #fff1e9 100%);
}
.service-card:nth-child(3) .icon {
  color: var(--accent-warm-dark);
  background: #ffe5d8;
}
.service-card:nth-child(4) {
  background: linear-gradient(145deg, #fff 48%, #f3edff 100%);
}
.service-card:nth-child(4)::after {
  background: var(--accent-violet-soft);
}
.service-card:nth-child(4) .icon {
  color: var(--accent-violet-dark);
  background: #e9ddff;
}
.service-card:nth-child(4) .service-kicker {
  color: var(--accent-violet-dark);
}
.service-card:nth-child(2) .service-number {
  color: var(--accent-blue-dark);
}
.service-card:nth-child(3) .service-number {
  color: var(--accent-warm-dark);
}
.service-card:nth-child(4) .service-number {
  color: var(--accent-violet-dark);
}
.service-card:nth-child(2) .service-kicker {
  color: var(--accent-blue-dark);
}
.service-card:nth-child(3) .service-kicker {
  color: var(--accent-warm-dark);
}

/* Services page — channel catalog */
.service-catalog {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.service-catalog-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 330px;
  overflow: hidden;
  padding: 28px;
  background: linear-gradient(145deg, #fff 52%, #eefbf2 100%);
}
.service-catalog-card::after {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  right: -54px;
  top: -58px;
  border-radius: 50%;
  background: var(--brand-soft);
  opacity: 0.78;
}
.service-catalog-card > * {
  position: relative;
  z-index: 1;
}
.catalog-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 32px;
}
.catalog-number {
  font-family: var(--font-mono);
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 0.8;
  letter-spacing: -0.07em;
  color: var(--brand-dark);
  opacity: 0.13;
}
.catalog-kicker {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--brand-dark);
}
.service-catalog-card h3 {
  margin-top: 8px;
  font-size: clamp(1.35rem, 1.8vw, 1.75rem);
}
.service-catalog-card p {
  font-size: 0.94rem;
  line-height: 1.65;
}
.service-catalog-card .text-link {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 22px;
}
.service-catalog-card:nth-child(4n + 2),
.service-catalog-card:nth-child(4n + 2)::after {
  background-color: var(--accent-blue-soft);
}
.service-catalog-card:nth-child(4n + 2) {
  background: linear-gradient(145deg, #fff 52%, #eef0ff 100%);
}
.service-catalog-card:nth-child(4n + 2) .icon {
  color: var(--accent-blue-dark);
  background: #e5e9ff;
}
.service-catalog-card:nth-child(4n + 2) .catalog-kicker,
.service-catalog-card:nth-child(4n + 2) .catalog-number {
  color: var(--accent-blue-dark);
}
.service-catalog-card:nth-child(4n + 3) {
  background: linear-gradient(145deg, #fff 52%, #fff1e9 100%);
}
.service-catalog-card:nth-child(4n + 3)::after {
  background: var(--accent-warm-soft);
}
.service-catalog-card:nth-child(4n + 3) .icon {
  color: var(--accent-warm-dark);
  background: #ffe5d8;
}
.service-catalog-card:nth-child(4n + 3) .catalog-kicker,
.service-catalog-card:nth-child(4n + 3) .catalog-number {
  color: var(--accent-warm-dark);
}
.service-catalog-card:nth-child(4n) {
  background: linear-gradient(145deg, #fff 52%, #f3edff 100%);
}
.service-catalog-card:nth-child(4n)::after {
  background: var(--accent-violet-soft);
}
.service-catalog-card:nth-child(4n) .icon {
  color: var(--accent-violet-dark);
  background: #e9ddff;
}
.service-catalog-card:nth-child(4n) .catalog-kicker,
.service-catalog-card:nth-child(4n) .catalog-number {
  color: var(--accent-violet-dark);
}
.compact-catalog {
  counter-reset: solution-card;
}
.compact-catalog .service-catalog-card {
  counter-increment: solution-card;
}
.compact-catalog .service-catalog-card > .icon {
  margin-bottom: 32px;
}
.compact-catalog .service-catalog-card::before {
  content: counter(solution-card, decimal-leading-zero);
  position: absolute;
  z-index: 1;
  top: 30px;
  right: 28px;
  font-family: var(--font-mono);
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 0.8;
  letter-spacing: -0.07em;
  color: var(--brand-dark);
  opacity: 0.13;
}
.compact-catalog .service-catalog-card:nth-child(4n + 2)::before {
  color: var(--accent-blue-dark);
}
.compact-catalog .service-catalog-card:nth-child(4n + 3)::before {
  color: var(--accent-warm-dark);
}
.compact-catalog .service-catalog-card:nth-child(4n)::before {
  color: var(--accent-violet-dark);
}
@media (max-width: 1050px) {
  .service-catalog {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 700px) {
  .service-catalog {
    grid-template-columns: 1fr;
  }
  .service-catalog-card {
    min-height: 0;
    padding: 28px 24px;
  }
}

/* Steps — counter 用 mono */
.steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  counter-reset: step;
}
.step {
  min-height: 220px;
  padding: 24px 20px;
  border-top: 1px solid var(--border-strong);
  counter-increment: step;
}
.step::before {
  content: "0" counter(step);
  display: block;
  margin-bottom: 45px;
  color: var(--brand-dark);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}
.step h3 {
  font-size: 1.15rem;
}
.step p {
  margin-top: 10px;
  font-size: 0.9rem;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  align-items: stretch;
}
.price-card {
  display: flex;
  flex-direction: column;
  padding: 28px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 22px;
  transition:
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .price-card:hover {
    border-color: var(--border-strong);
    box-shadow: var(--shadow-1);
  }
}
.price-card.recommended {
  border: 2px solid var(--brand);
  transform: translateY(-10px);
  box-shadow: 0 18px 40px -12px rgba(79, 70, 229, 0.18);
}
.price-card:nth-child(1) {
  border-top: 3px solid var(--accent-blue);
}
.price-card:nth-child(3) {
  border-top: 3px solid var(--accent-warm);
}
.price-card:nth-child(4) {
  border-top: 3px solid var(--accent-violet);
}
.price-card.recommended {
  border-top-color: var(--brand);
}
.badge {
  display: inline-flex;
  align-self: flex-start;
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-mono);
}
.price {
  margin: 20px 0 8px;
  font-family: var(--font-display);
  font-weight: 480;
  font-size: 2.7rem;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  font-optical-sizing: auto;
}
.price small {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--muted);
  letter-spacing: 0;
}
.price-card > p {
  min-height: 76px;
}
.price-card h3 {
  font-size: 1.3rem;
}
.check-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 28px;
  display: grid;
  gap: 11px;
  font-size: 0.9rem;
}
.check-list li {
  display: flex;
  gap: 9px;
}
.check-list li::before {
  content: "✓";
  color: var(--brand-dark);
  font-weight: 700;
  font-family: var(--font-mono);
}
.price-card .btn {
  margin-top: auto;
}

/* Image card */
.image-card {
  padding: 0;
  overflow: hidden;
}
.image-card img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}
.image-card .card-body {
  padding: 28px;
}
.tag {
  display: inline-flex;
  padding: 5px 9px;
  border-radius: 999px;
  background: #f0f0ec;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.grid-3 > .image-card:nth-child(3n + 2) .tag {
  color: var(--accent-blue-dark);
  background: var(--accent-blue-soft);
}
.grid-3 > .image-card:nth-child(3n) .tag {
  color: var(--accent-warm-dark);
  background: var(--accent-warm-soft);
}

/* FAQ */
.faq-list {
  border-top: 1px solid var(--border);
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-q {
  width: 100%;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border: 0;
  background: transparent;
  text-align: left;
  font-weight: 550;
  font-family: var(--font-display);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0;
  letter-spacing: -0.01em;
}
.faq-q span:last-child {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  transition:
    transform var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out);
  flex: 0 0 30px;
}
.faq-q:hover span:last-child {
  border-color: var(--border-strong);
}
.faq-q svg {
  width: 16px;
  height: 16px;
}
.faq-q[aria-expanded="true"] span:last-child {
  transform: rotate(45deg);
  background: var(--ink);
  color: white;
  border-color: var(--ink);
}
.faq-a {
  display: none;
  padding: 0 56px 26px 0;
  color: var(--ink-2);
}
.faq-a.open {
  display: block;
}

/* CTA panel — 去一个装饰圆, 保留克制的 */
.cta-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: center;
  padding: 70px;
  border-radius: 32px;
  background: var(--brand);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}
.cta-panel::before {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  right: -130px;
  top: -130px;
}
.cta-panel > * {
  position: relative;
  z-index: 1;
}
.cta-panel h2 {
  max-width: 750px;
  color: #ffffff;
}
.cta-panel p {
  margin-top: 16px;
  max-width: 680px;
  color: rgba(255, 255, 255, 0.82);
}

/* Page hero — 去径向渐变 + 装饰圆环; 纯 canvas + 底部 border */
.page-hero {
  padding: 90px 0 80px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  background: var(--canvas);
}
.page-hero > .container,
.page-hero > .narrow {
  position: relative;
  z-index: 1;
}
/* 居中 hero 改左对齐编辑感 (pricing/free-audit) */
.page-hero.center {
  text-align: left;
}
.page-hero.center .lead {
  margin-inline: 0;
}
.page-hero.center .trust-line {
  justify-content: flex-start;
}
.page-hero.center .btn-row {
  justify-content: flex-start;
}
.page-hero-grid {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 80px;
  align-items: center;
}
.page-hero .image-wrap {
  min-height: 430px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow:
    18px 22px 0 -12px rgba(20, 20, 15, 0.06),
    -12px -12px 0 -8px rgba(20, 20, 15, 0.04);
}
.page-hero .image-wrap img {
  width: 100%;
  height: 100%;
  position: absolute;
  object-fit: cover;
}
.mini-dashboard {
  position: absolute;
  inset: auto 24px 24px;
  padding: 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.mini-dashboard {
  border-left: 4px solid var(--brand);
}
.mini-dashboard strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 550;
  font-size: 1.5rem;
}

/* Split + list */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}
.list-stack {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}
.list-row {
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
}
.list-row strong {
  font-family: var(--font-display);
  font-weight: 550;
}
.list-row:nth-child(3n + 2) .icon {
  color: var(--accent-blue-dark);
  background: var(--accent-blue-soft);
}
.list-row:nth-child(3) .icon {
  color: var(--accent-warm-dark);
  background: var(--accent-warm-soft);
}

/* Visual block */
.visual-block {
  min-height: 480px;
  border-radius: var(--radius-lg);
  background: var(--ink);
  overflow: hidden;
  position: relative;
}
.visual-block img {
  width: 100%;
  height: 100%;
  position: absolute;
  object-fit: cover;
  opacity: 0.62;
}
.visual-label {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  padding: 22px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.visual-label {
  border-top: 3px solid var(--accent-blue);
}

/* Tabs */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 38px;
  padding: 7px;
  width: max-content;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--canvas);
}
.tab {
  min-height: 44px;
  border: 1px solid transparent;
  background: white;
  border-radius: 999px;
  padding: 10px 15px;
  cursor: pointer;
  font-weight: 500;
  transition:
    border-color var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out),
    color var(--dur-base) var(--ease-out);
}
.tab:hover {
  border-color: var(--border-strong);
}
.tab.active {
  background: var(--ink);
  color: white;
  border-color: var(--ink);
}

/* Compare table */
.compare-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: white;
}
.compare {
  width: 100%;
  border-collapse: collapse;
  min-width: 850px;
}
.compare caption {
  padding: 16px 18px;
  text-align: left;
  color: var(--ink-2);
  font-weight: 600;
}
.compare th,
.compare td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  text-align: center;
  font-size: 0.9rem;
}
.compare th:first-child,
.compare td:first-child {
  text-align: left;
  position: sticky;
  left: 0;
  background: white;
}
.compare thead th {
  background: var(--canvas);
  font-weight: 600;
  font-family: var(--font-display);
}

/* Form */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.field {
  display: grid;
  gap: 7px;
}
.field.full {
  grid-column: 1/-1;
}
.field label {
  font-size: 0.84rem;
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 54px;
  border: 1px solid var(--border-strong);
  background: white;
  border-radius: 12px;
  padding: 12px 15px;
  color: var(--ink);
  font-family: var(--font-sans);
  transition:
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}
.field textarea {
  min-height: 130px;
  resize: vertical;
}
.field input:focus-visible,
.field select:focus-visible,
.field textarea:focus-visible {
  outline: 2px solid var(--brand-dark);
  outline-offset: 2px;
  border-color: var(--brand-dark);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.18);
}
.field-error {
  color: var(--error);
  font-size: 0.78rem;
  min-height: 1.2em;
  font-family: var(--font-mono);
}
.form-shell {
  padding: 34px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: white;
  box-shadow: var(--shadow-1);
  position: relative;
  overflow: hidden;
}
.form-shell::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: var(--brand);
}

/* Audit layout */
.audit-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 50px;
  align-items: start;
}
.audit-preview {
  position: sticky;
  top: 110px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  background: var(--ink);
  color: white;
}
.score {
  width: 130px;
  height: 130px;
  margin: 25px auto;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(var(--brand) 0 68%, #333 68%);
  position: relative;
}
.score::before {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 50%;
  background: var(--ink);
}
.score strong {
  z-index: 1;
  font-family: var(--font-display);
  font-weight: 480;
  font-size: 2rem;
  font-variant-numeric: tabular-nums;
}
.preview-list {
  display: grid;
  gap: 10px;
}
.preview-row {
  display: flex;
  justify-content: space-between;
  padding: 13px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

/* Legal */
.legal h2 {
  margin-top: 54px;
  font-size: 2rem;
}
.legal p,
.legal li {
  color: var(--ink-2);
}

/* Footer — 去径向渐变, 纯色 */
.site-footer {
  padding: 80px 0 30px;
  background: #f1f5f9;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 40px;
}
.footer-brand p {
  max-width: 310px;
  margin-top: 18px;
}
.footer-col h2 {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.76rem;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  color: var(--ink-2);
}
.footer-col a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 0;
  color: var(--ink-2);
  font-size: 0.9rem;
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-col a:hover {
  color: var(--ink);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid #e2e8f0;
  color: var(--muted);
  font-size: 0.78rem;
  font-family: var(--font-mono);
}
.footer-bottom a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Fixed utility controls */
.back-to-top {
  position: fixed;
  z-index: 90;
  right: 24px;
  bottom: 24px;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-2);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  pointer-events: none;
  transition:
    opacity var(--dur-base) var(--ease-out),
    visibility var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top svg {
  width: 21px;
  height: 21px;
}
@media (hover: hover) and (pointer: fine) {
  .back-to-top:hover {
    background: var(--brand-soft);
  }
}

/* Reveal — stagger via inline --d delay set by JS */
.reveal {
  opacity: 1;
  transform: none;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

[hidden] {
  display: none !important;
}
[inert] {
  pointer-events: none;
}
main :where(a, button, input, select, textarea, [tabindex]):focus-visible {
  scroll-margin-block: 120px 32px;
}

/* Responsive */
@media (max-width: 1050px) {
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: grid;
    place-items: center;
  }
  .nav-actions .btn {
    display: none;
  }
  .nav-links.open {
    display: flex;
    position: fixed;
    inset: 112px 0 auto;
    height: calc(100vh - 112px);
    padding: 30px 24px;
    background: white;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    font-size: 1.2rem;
  }
  .hero-grid,
  .page-hero-grid,
  .pain-grid,
  .split,
  .audit-layout {
    grid-template-columns: 1fr;
  }
  .hero-copy {
    max-width: 800px;
  }
  .hero-visual {
    min-height: 520px;
  }
  .phone-card {
    width: 360px;
    height: 400px;
    right: 0;
    bottom: 18px;
  }
  .phone-shot-1 {
    width: 128px;
    bottom: 48px;
  }
  .phone-shot-2 {
    left: 108px;
    width: 152px;
  }
  .phone-shot-3 {
    width: 124px;
    bottom: 42px;
  }
  .grid-4,
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .service-card {
    grid-column: span 6;
  }
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 2fr repeat(2, 1fr);
  }
  .audit-preview {
    position: relative;
    top: auto;
  }
  .page-hero.center .trust-line {
    justify-content: flex-start;
  }
}
@media (max-width: 700px) {
  .container,
  .narrow {
    width: min(calc(100% - 40px), var(--max));
  }
  .announcement {
    padding-inline: 14px;
    text-align: center;
  }
  .announcement span {
    display: none;
  }
  .site-header {
    height: 64px;
  }
  .nav-links.open {
    inset: 100px 0 auto;
    height: calc(100vh - 100px);
  }
  .brand-logo {
    width: 34px;
    height: 34px;
  }
  .brand-name {
    font-size: 1rem;
  }
  .hero,
  .page-hero {
    padding: 64px 0 70px;
  }
  h1 {
    font-size: clamp(2.65rem, 13vw, 4rem);
  }
  h2 {
    font-size: clamp(2rem, 10vw, 3.1rem);
  }
  h1,
  h2,
  h3 {
    overflow-wrap: anywhere;
  }
  .eyebrow {
    max-width: 100%;
    white-space: normal;
    font-size: 0.68rem;
    line-height: 1.45;
  }
  .section {
    padding: 72px 0;
  }
  .section-sm {
    padding: 52px 0;
  }
  .hero-grid {
    gap: 45px;
  }
  .btn-row {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-row .btn {
    width: 100%;
  }
  .hero-visual {
    min-height: 420px;
  }
  .dashboard {
    transform: none;
  }
  .dash-main {
    padding: 16px;
  }
  .chart {
    height: 120px;
  }
  .metric-grid {
    grid-template-columns: 1fr 1fr;
  }
  .metric:last-child {
    display: none;
  }
  .phone-card {
    width: 290px;
    height: 330px;
    right: 4px;
    bottom: 14px;
  }
  .phone-shot {
    border-width: 2px;
    border-radius: 18px;
  }
  .phone-shot-1 {
    left: 0;
    bottom: 44px;
    width: 104px;
  }
  .phone-shot-2 {
    left: 86px;
    bottom: 8px;
    width: 124px;
  }
  .phone-shot-3 {
    right: 0;
    bottom: 36px;
    width: 102px;
  }
  .map-pill {
    left: -8px;
    top: 10px;
  }
  .logo-row {
    overflow: auto;
    justify-content: flex-start;
    padding-bottom: 4px;
  }
  .grid-2,
  .grid-3,
  .grid-4,
  .pricing-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }
  .stat-row {
    grid-template-columns: 1fr 1fr;
  }
  .stat:nth-child(2) {
    border-right: 0;
  }
  .stat {
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }
  .service-bento {
    display: grid;
    grid-template-columns: 1fr;
  }
  .service-card,
  .service-card.featured {
    grid-column: auto;
    min-height: auto;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .step {
    display: grid;
    grid-template-columns: 45px 1fr;
    min-height: auto;
    gap: 12px;
  }
  .step::before {
    margin: 0;
  }
  .step p {
    grid-column: 2;
  }
  .price-card.recommended {
    transform: none;
    order: -1;
  }
  .cta-panel {
    grid-template-columns: 1fr;
    padding: 42px 28px;
  }
  .cta-panel .btn {
    width: 100%;
  }
  .page-hero-grid {
    gap: 40px;
  }
  .page-hero .image-wrap {
    min-height: 320px;
  }
  .form-shell {
    padding: 23px;
  }
  .field.full {
    grid-column: auto;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1/-1;
  }
  .footer-bottom {
    flex-direction: column;
  }
  .faq-q {
    font-size: 1rem;
  }
  .faq-a {
    padding-right: 0;
  }
  .language-switch button {
    min-width: 34px;
    padding-inline: 8px;
  }
  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 46px;
    height: 46px;
  }
}

/* Article body — 阅读优化排版 (resources 文章详情页) */
.article-hero {
  padding: 80px 0 56px;
  border-bottom: 1px solid var(--border);
  background: var(--canvas);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.82rem;
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.article-meta span + span::before {
  content: "";
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--muted);
}
.article-cover {
  margin: 40px 0 8px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}
.article-cover img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 21/9;
  object-fit: cover;
}
.article-body {
  font-size: 1.06rem;
  line-height: 1.78;
}
.article-body > * + * {
  margin-top: 0;
}
.article-body h2 {
  margin: 48px 0 16px;
  font-size: clamp(1.55rem, 3vw, 2rem);
  font-weight: 550;
}
.article-body h3 {
  margin: 34px 0 12px;
  font-size: 1.28rem;
  font-weight: 550;
}
.article-body p {
  margin: 0 0 20px;
  color: var(--ink-2);
}
.article-body ul,
.article-body ol {
  margin: 0 0 24px;
  padding-left: 22px;
}
.article-body li {
  margin-bottom: 10px;
  color: var(--ink-2);
}
.article-body li::marker {
  color: var(--brand);
  font-weight: 700;
}
.article-body strong {
  color: var(--ink);
  font-weight: 600;
}
.article-body a {
  color: var(--brand-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
.article-body blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  border-left: 3px solid var(--brand);
  background: var(--brand-soft);
  border-radius: 0 12px 12px 0;
}
.article-body blockquote p {
  margin: 0;
  color: var(--ink);
  font-weight: 500;
}
.article-body .callout {
  margin: 28px 0;
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
}
.article-body .callout strong {
  display: block;
  margin-bottom: 8px;
  color: var(--brand-dark);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.article-footer {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}
.article-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand-dark);
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}
.article-back::before {
  content: "←";
  transition: transform var(--dur-base) var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .article-back:hover::before {
    transform: translateX(-4px);
  }
}
.related-list {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.related-list h2 {
  font-size: 1.35rem;
  margin-bottom: 22px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 700px) {
  .related-grid {
    grid-template-columns: 1fr;
  }
  .article-body {
    font-size: 1rem;
  }
}

/* Google traffic — core reasons */
.google-reason-grid {
  gap: 22px;
}
.google-reason-card {
  position: relative;
  min-height: 310px;
  overflow: hidden;
  padding: 34px;
  background: linear-gradient(145deg, #fff 50%, #eef4ff 100%);
}
.google-reason-card:nth-child(2) {
  background: linear-gradient(145deg, #fff 50%, #f4efff 100%);
}
.google-reason-card::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -72px;
  top: -76px;
  border-radius: 50%;
  background: rgba(79, 70, 229, 0.08);
}
.google-reason-card > * {
  position: relative;
  z-index: 1;
}
.google-reason-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 34px;
}
.google-reason-number {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.06em;
  color: rgba(67, 56, 202, 0.15);
}
.google-reason-label {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-dark);
}
.google-reason-card h3 {
  margin-top: 9px;
  font-size: clamp(1.6rem, 2.5vw, 2.15rem);
}
.google-reason-card p {
  max-width: 52ch;
  font-size: 1.02rem;
}
.google-reason-card:nth-child(2) .icon {
  color: var(--accent-violet-dark);
  background: var(--accent-violet-soft);
}
.google-reason-card:nth-child(2) .google-reason-label {
  color: var(--accent-violet-dark);
}
.google-reason-card:nth-child(2) .google-reason-number {
  color: rgba(109, 40, 217, 0.15);
}
@media (max-width: 700px) {
  .google-reason-card {
    min-height: 0;
    padding: 28px 24px;
  }
  .google-reason-top {
    margin-bottom: 28px;
  }
}

/* Local SEO — AI search showcase */
.seo-ai-section {
  padding-top: 0;
}
.seo-ai-showcase {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(360px, 1.1fr);
  align-items: center;
  gap: clamp(48px, 7vw, 110px);
  min-height: 430px;
  padding: clamp(44px, 6vw, 76px);
  overflow: hidden;
  border-radius: 34px;
  color: white;
  background:
    radial-gradient(
      circle at 14% 12%,
      rgba(180, 190, 255, 0.82),
      transparent 34%
    ),
    radial-gradient(
      circle at 46% 78%,
      rgba(64, 132, 231, 0.44),
      transparent 40%
    ),
    linear-gradient(118deg, #8196fb 0%, #2465aa 48%, #063c67 100%);
  box-shadow: 0 28px 70px -30px rgba(13, 54, 108, 0.55);
}
.seo-ai-showcase::before,
.seo-ai-showcase::after {
  content: "";
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  filter: blur(2px);
  pointer-events: none;
}
.seo-ai-showcase::before {
  width: 420px;
  height: 420px;
  left: -190px;
  bottom: -260px;
  background: rgba(197, 210, 255, 0.34);
}
.seo-ai-showcase::after {
  width: 330px;
  height: 330px;
  right: -150px;
  top: -210px;
  background: rgba(6, 34, 75, 0.22);
}
.page-hero .google-search-hero {
  isolation: isolate;
  display: grid;
  place-items: center;
  padding: 34px;
  border-color: rgba(255, 255, 255, 0.42);
  background:
    radial-gradient(circle at 8% 100%, rgba(188, 203, 255, 0.55), transparent 32%),
    radial-gradient(circle at 18% 10%, rgba(172, 187, 255, 0.62), transparent 36%),
    linear-gradient(135deg, #8196f5 0%, #4c7bd0 52%, #1263a4 100%);
  box-shadow: 0 26px 60px -28px rgba(24, 76, 153, 0.52);
}
.google-search-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  width: 260px;
  height: 260px;
  left: -145px;
  bottom: -175px;
  border-radius: 50%;
  background: rgba(204, 214, 255, 0.46);
  pointer-events: none;
}
.google-search-hero .seo-search-visual {
  position: relative;
  z-index: 1;
}
.seo-search-visual {
  width: min(100%, 380px);
  margin-inline: auto;
}
.seo-search-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  width: calc(100% - 8px);
  min-height: 58px;
  margin: 0 auto 12px;
  padding: 0 22px;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 17px;
  color: #222a36;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 12px 30px rgba(23, 53, 112, 0.16);
  font-size: 0.95rem;
  font-weight: 500;
}
.seo-search-bar svg {
  width: 19px;
  height: 19px;
  color: #64748b;
}
.seo-results-panel {
  padding: 14px 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 26px;
  background: rgba(221, 232, 255, 0.34);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.34),
    0 20px 50px rgba(21, 53, 117, 0.14);
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
}
.seo-featured-result {
  display: grid;
  grid-template-columns: 65px 1fr;
  gap: 12px;
  min-height: 86px;
  padding: 10px;
  border-radius: 20px;
  color: #162033;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 28px rgba(31, 63, 126, 0.15);
}
.seo-restaurant-thumb {
  position: relative;
  overflow: hidden;
  border-radius: 12px;
  background:
    linear-gradient(90deg, transparent 46%, #8a4932 47% 54%, transparent 55%),
    linear-gradient(#d79a57 0 42%, #315a4a 43% 70%, #dcc195 71%);
}
.seo-restaurant-thumb span {
  position: absolute;
  bottom: 8px;
  width: 10px;
  height: 28px;
  border-radius: 8px 8px 3px 3px;
  background: #f7ead6;
}
.seo-restaurant-thumb span:nth-child(1) {
  left: 8px;
}
.seo-restaurant-thumb span:nth-child(2) {
  left: 26px;
  height: 38px;
  background: #cf5a38;
}
.seo-restaurant-thumb span:nth-child(3) {
  right: 8px;
  height: 23px;
  background: #243c37;
}
.seo-result-copy {
  padding-top: 2px;
}
.seo-result-copy strong {
  display: block;
  font-size: 0.75rem;
  line-height: 1.2;
}
.seo-rating {
  display: flex;
  align-items: center;
  margin-top: 5px;
  font-size: 0.67rem;
}
.seo-rating span {
  color: #111827;
  letter-spacing: -0.08em;
}
.seo-rating i {
  color: #b8c0cd;
  font-style: normal;
}
.seo-rating small {
  margin-left: 7px;
  color: #475569;
}
.seo-result-copy b,
.seo-result-copy em {
  display: block;
  height: 7px;
  margin-top: 8px;
  border-radius: 999px;
  background: #e5e7eb;
}
.seo-result-copy em {
  width: 58%;
  margin-top: 6px;
}
.seo-result-placeholder {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 14px;
  align-items: center;
  padding: 14px 10px 0;
}
.seo-result-placeholder > span {
  width: 58px;
  aspect-ratio: 1;
  border-radius: 15px;
  background: rgba(240, 245, 255, 0.52);
}
.seo-result-placeholder div {
  display: grid;
  gap: 7px;
}
.seo-result-placeholder i {
  display: block;
  width: 82%;
  height: 6px;
  border-radius: 999px;
  background: rgba(239, 245, 255, 0.58);
}
.seo-result-placeholder i:nth-child(1) {
  width: 48%;
}
.seo-result-placeholder i:nth-child(3) {
  width: 66%;
}
.seo-ai-copy {
  max-width: 590px;
}
.seo-ai-label {
  display: inline-flex;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
}
.seo-ai-copy h2 {
  max-width: 14ch;
  color: white;
  font-family: var(--font-sans);
  font-size: clamp(2.45rem, 4.3vw, 4.25rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.055em;
}
.seo-ai-copy p {
  max-width: 56ch;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.78);
}
.seo-ai-copy .btn {
  margin-top: 28px;
}
@media (max-width: 900px) {
  .seo-ai-showcase {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .seo-ai-copy {
    max-width: 680px;
  }
  .seo-ai-copy h2 {
    max-width: 16ch;
  }
}
@media (max-width: 700px) {
  .seo-ai-section {
    padding-top: 0;
  }
  .page-hero .google-search-hero {
    min-height: 390px;
    padding: 24px 18px;
  }
  .seo-ai-showcase {
    gap: 38px;
    min-height: 0;
    padding: 34px 24px 38px;
    border-radius: 24px;
  }
  .seo-search-bar {
    min-height: 52px;
    padding-inline: 16px;
    font-size: 0.85rem;
  }
  .seo-results-panel {
    border-radius: 21px;
  }
  .seo-featured-result {
    grid-template-columns: 56px 1fr;
    min-height: 76px;
  }
  .seo-result-placeholder {
    grid-template-columns: 48px 1fr;
  }
  .seo-result-placeholder > span {
    width: 48px;
  }
  .seo-ai-copy h2 {
    font-size: clamp(2.25rem, 11vw, 3.2rem);
  }
  .seo-ai-copy .btn {
    width: 100%;
  }
}

@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;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition-delay: 0ms;
  }
}

@media (forced-colors: active) {
  :focus-visible {
    outline: 3px solid CanvasText;
    outline-offset: 3px;
    box-shadow: none;
  }
  .btn,
  .tab,
  .pain-item,
  .menu-toggle {
    border: 1px solid ButtonText;
  }
}