/* ==========================================================================
   FEITUCLOUD (飞兔云) — SPEED-TECH LANDING PAGE STYLESHEET
   Style: Bold sporty "speed-tech" — race poster meets dev tool
   Palette: Flame Orange #FF4D1C | Carbon Black #16130F | Warm Cream #FFF3E8
            Sand Yellow #FFC53D | Smoke Gray #8A817A
   Rules: 6px beveled corners (clip-path), 2px solid black outlines,
          sticker-style rotated badges, 120ms transitions, hover skew -4deg,
          NO rounded corners, NO gradients.
   ========================================================================== */

:root {
  --flame-orange: #FF4D1C;
  --carbon-black: #16130F;
  --warm-cream: #FFF3E8;
  --sand-yellow: #FFC53D;
  --smoke-gray: #8A817A;
  --paper-white: #FFFFFF;
  --cream-panel: #F7E8D8;
  --bevel-6px: polygon(
    6px 0,
    calc(100% - 6px) 0,
    100% 6px,
    100% calc(100% - 6px),
    calc(100% - 6px) 100%,
    6px 100%,
    0 calc(100% - 6px),
    0 6px
  );
  --font-latin: 'Archivo', 'Impact', 'Arial Black', sans-serif;
  --font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Consolas', 'Courier New', monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--warm-cream);
  /* 4% opacity diagonal pinstripes via SVG pattern (strictly zero CSS gradients) */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M-4,4 L4,-4 M0,16 L16,0 M12,20 L20,12' stroke='%2316130F' stroke-width='1.5' stroke-opacity='0.04'/%3E%3C/svg%3E");
  color: var(--carbon-black);
  font-family: var(--font-cn);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   TYPOGRAPHY & SPEED-TECH TELEMETRY UTILITIES
   ========================================================================== */

.latin-head {
  font-family: var(--font-latin);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.03em;
}

.section-header {
  margin-bottom: 44px;
  position: relative;
}

.section-kicker {
  display: inline-block;
  background-color: var(--carbon-black);
  color: var(--sand-yellow);
  font-family: var(--font-latin);
  font-weight: 800;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 5px 12px;
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  margin-bottom: 14px;
}

.section-title {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(1.85rem, 3.4vw, 2.75rem);
  line-height: 1.18;
  color: var(--carbon-black);
  letter-spacing: -0.02em;
}

.section-title .accent-mark {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
  padding: 0 10px;
  display: inline-block;
  transform: skewX(-4deg);
}

.section-desc {
  margin-top: 12px;
  color: var(--smoke-gray);
  font-size: 1.05rem;
  max-width: 760px;
  font-weight: 500;
}

/* Sticker-style rotated badges */
.sticker-badge {
  display: inline-block;
  background-color: var(--sand-yellow);
  color: var(--carbon-black);
  font-family: var(--font-latin), var(--font-cn);
  font-weight: 900;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  transform: rotate(-3deg);
  box-shadow: 3px 3px 0 var(--carbon-black);
}

.sticker-badge.flame {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
  transform: rotate(2.5deg);
}

/* ==========================================================================
   BUTTONS (6px Bevel, 2px Black Outline, 120ms Transition, -4deg Hover Skew)
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-latin), var(--font-cn);
  font-weight: 900;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  padding: 14px 26px;
  min-height: 50px;
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  cursor: pointer;
  transition: transform 120ms ease-out, background-color 120ms ease-out, color 120ms ease-out;
  text-align: center;
  line-height: 1.2;
}

.btn:hover,
.btn:focus-visible {
  transform: skewX(-4deg) translateY(-2px);
}

.btn-primary {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
}

.btn-primary:hover {
  background-color: var(--carbon-black);
  color: var(--sand-yellow);
}

.btn-accent {
  background-color: var(--sand-yellow);
  color: var(--carbon-black);
}

.btn-accent:hover {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
}

.btn-dark {
  background-color: var(--carbon-black);
  color: var(--warm-cream);
}

.btn-dark:hover {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
}

.btn-blog {
  background-color: var(--warm-cream);
  color: var(--carbon-black);
  border: 2px solid var(--carbon-black);
}

.btn-blog:hover {
  background-color: var(--sand-yellow);
  color: var(--carbon-black);
}

/* ==========================================================================
   CARDS (6px Bevel, 2px Solid Black Outline, 120ms Transition, -4deg Skew)
   ========================================================================== */

.speed-card {
  background-color: var(--paper-white);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 28px;
  position: relative;
  transition: transform 120ms ease-out, background-color 120ms ease-out;
}

.speed-card:hover {
  transform: skewX(-4deg) translateY(-3px);
}

/* ==========================================================================
   TOP TELEMETRY TICKER & HEADER NAVIGATION
   ========================================================================== */

.telemetry-bar {
  background-color: var(--carbon-black);
  color: var(--warm-cream);
  border-bottom: 2px solid var(--carbon-black);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 7px 0;
}

.telemetry-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.telemetry-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--flame-orange);
}

.site-header {
  background-color: var(--warm-cream);
  border-bottom: 2px solid var(--carbon-black);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 18px;
  flex-wrap: wrap;
}

.brand-identity {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 58px;
  height: 46px;
  flex-shrink: 0;
}

.brand-text-wrap {
  display: flex;
  flex-direction: column;
}

.brand-en {
  font-family: var(--font-latin);
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--carbon-black);
  text-transform: uppercase;
}

.brand-cn {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: 0.9rem;
  color: var(--flame-orange);
  letter-spacing: 0.04em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.nav-link {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: 0.92rem;
  color: var(--carbon-black);
  padding: 8px 13px;
  border: 2px solid transparent;
  clip-path: var(--bevel-6px);
  transition: transform 120ms ease-out, background-color 120ms ease-out, color 120ms ease-out, border-color 120ms ease-out;
}

.nav-link:hover {
  background-color: var(--sand-yellow);
  border-color: var(--carbon-black);
  transform: skewX(-4deg);
}

.nav-link-featured {
  background-color: var(--carbon-black);
  color: var(--sand-yellow);
  border: 2px solid var(--carbon-black);
}

.nav-link-featured:hover {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
}

.header-cta {
  padding: 10px 18px;
  min-height: 42px;
  font-size: 0.9rem;
}

/* ==========================================================================
   HERO SECTION (Race Poster Meets Dev Tool)
   ========================================================================== */

.hero-section {
  padding: 64px 0 56px;
  border-bottom: 2px solid var(--carbon-black);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 36px;
  align-items: stretch;
}

.hero-main {
  background-color: var(--paper-white);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 40px 38px;
  position: relative;
}

.hero-top-badges {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.hero-headline {
  font-family: var(--font-latin), var(--font-cn);
  font-weight: 900;
  font-size: clamp(2.1rem, 4.2vw, 3.55rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--carbon-black);
  margin-bottom: 18px;
}

.hero-headline .brand-highlight {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
  padding: 2px 12px;
  display: inline-block;
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
}

.hero-subtitle {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(1.12rem, 1.8vw, 1.38rem);
  color: var(--carbon-black);
  margin-bottom: 16px;
  line-height: 1.45;
  border-left: 6px solid var(--flame-orange);
  padding-left: 14px;
}

.hero-intro {
  background-color: var(--warm-cream);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 16px 18px;
  color: var(--carbon-black);
  font-size: 0.96rem;
  margin-bottom: 28px;
}

.hero-intro strong {
  color: var(--flame-orange);
  font-weight: 900;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

/* Telemetry Poster Side Panel */
.hero-telemetry-panel {
  background-color: var(--carbon-black);
  color: var(--warm-cream);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.telemetry-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--flame-orange);
  padding-bottom: 14px;
  margin-bottom: 20px;
}

.telemetry-panel-title {
  font-family: var(--font-latin);
  font-weight: 900;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sand-yellow);
}

.stat-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-box {
  background-color: #221D17;
  border: 2px solid var(--warm-cream);
  clip-path: var(--bevel-6px);
  padding: 16px 14px;
  transition: transform 120ms ease-out;
}

.stat-box:hover {
  transform: skewX(-4deg);
  border-color: var(--flame-orange);
}

.stat-numeral {
  font-family: var(--font-latin);
  font-weight: 900;
  font-size: clamp(2rem, 3.2vw, 2.85rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--flame-orange);
  text-transform: uppercase;
  display: block;
}

.stat-box.yellow .stat-numeral {
  color: var(--sand-yellow);
}

.stat-label {
  display: block;
  margin-top: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--warm-cream);
}

.telemetry-spec-list {
  margin-top: 22px;
  border-top: 2px solid #2E2820;
  padding-top: 16px;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.telemetry-spec-list li {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
  color: var(--warm-cream);
}

.telemetry-spec-list li span.spec-val {
  color: var(--sand-yellow);
  font-weight: 700;
}

/* ==========================================================================
   CORE ADVANTAGES SECTION (3 GRAPHIC + TEXT CARDS)
   ========================================================================== */

.section-block {
  padding: 72px 0;
  border-bottom: 2px solid var(--carbon-black);
}

.section-block.alt-bg {
  background-color: var(--cream-panel);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.adv-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.adv-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.adv-index {
  font-family: var(--font-latin);
  font-weight: 900;
  font-size: 1.5rem;
  color: var(--flame-orange);
  letter-spacing: -0.03em;
}

.adv-visual {
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  margin-bottom: 20px;
  background-color: var(--carbon-black);
  overflow: hidden;
}

.adv-visual img {
  width: 100%;
  height: auto;
}

.adv-title {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: 1.32rem;
  margin-bottom: 10px;
  color: var(--carbon-black);
}

.adv-text {
  color: var(--smoke-gray);
  font-size: 0.95rem;
  margin-bottom: 18px;
}

.adv-meta-tag {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.78rem;
  background-color: var(--warm-cream);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 6px 10px;
  color: var(--carbon-black);
}

/* ==========================================================================
   STREAMING & AI UNLOCK SECTION
   ========================================================================== */

.unlock-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.unlock-card {
  background-color: var(--paper-white);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 32px;
  transition: transform 120ms ease-out;
}

.unlock-card:hover {
  transform: skewX(-4deg) translateY(-3px);
}

.unlock-visual {
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  margin-bottom: 22px;
  background-color: var(--carbon-black);
}

.unlock-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
}

.unlock-title {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: 1.45rem;
  color: var(--carbon-black);
}

.unlock-desc {
  color: var(--smoke-gray);
  font-size: 0.96rem;
  margin-bottom: 20px;
}

.badge-matrix {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.platform-chip {
  background-color: var(--warm-cream);
  color: var(--carbon-black);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 6px 12px;
  font-family: var(--font-latin), var(--font-cn);
  font-weight: 800;
  font-size: 0.82rem;
  text-transform: uppercase;
  transition: transform 120ms ease-out, background-color 120ms ease-out;
}

.platform-chip:hover {
  background-color: var(--sand-yellow);
  transform: skewX(-4deg);
}

.platform-chip.hot {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
}

/* ==========================================================================
   PRICING CARDS & COMPARISON TABLE
   ========================================================================== */

.pricing-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-bottom: 48px;
}

.plan-card {
  background-color: var(--paper-white);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: transform 120ms ease-out;
}

.plan-card:hover {
  transform: skewX(-4deg) translateY(-4px);
}

.plan-card.featured {
  background-color: var(--carbon-black);
  color: var(--warm-cream);
  border: 2px solid var(--carbon-black);
}

.plan-tier-code {
  font-family: var(--font-latin);
  font-weight: 900;
  font-size: 0.82rem;
  text-transform: uppercase;
  color: var(--flame-orange);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.plan-card.featured .plan-tier-code {
  color: var(--sand-yellow);
}

.plan-name {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: 1.35rem;
  margin-bottom: 16px;
}

.plan-price-block {
  border-top: 2px solid var(--carbon-black);
  border-bottom: 2px solid var(--carbon-black);
  padding: 16px 0;
  margin-bottom: 18px;
}

.plan-card.featured .plan-price-block {
  border-color: #362F28;
}

.plan-price-num {
  font-family: var(--font-latin);
  font-weight: 900;
  font-size: 2.8rem;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--flame-orange);
}

.plan-card.featured .plan-price-num {
  color: var(--sand-yellow);
}

.plan-price-unit {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--smoke-gray);
}

.plan-card.featured .plan-price-unit {
  color: var(--warm-cream);
}

.plan-traffic-badge {
  display: inline-block;
  margin-top: 8px;
  background-color: var(--sand-yellow);
  color: var(--carbon-black);
  font-family: var(--font-latin), var(--font-cn);
  font-weight: 900;
  font-size: 0.84rem;
  padding: 4px 10px;
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
}

.plan-features {
  list-style: none;
  margin-bottom: 24px;
  font-size: 0.92rem;
}

.plan-features li {
  padding: 7px 0;
  border-bottom: 1px dashed rgba(138, 129, 122, 0.35);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.plan-features li::before {
  content: "▸";
  color: var(--flame-orange);
  font-weight: 900;
}

.plan-card.featured .plan-features li::before {
  color: var(--sand-yellow);
}

/* Comparison Table */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  background-color: var(--paper-white);
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  text-align: left;
}

.pricing-table th,
.pricing-table td {
  padding: 16px 18px;
  border-bottom: 2px solid var(--carbon-black);
  border-right: 2px solid var(--carbon-black);
  font-size: 0.94rem;
}

.pricing-table th:last-child,
.pricing-table td:last-child {
  border-right: none;
}

.pricing-table thead th {
  background-color: var(--carbon-black);
  color: var(--warm-cream);
  font-family: var(--font-latin), var(--font-cn);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 0.95rem;
}

.pricing-table thead th.highlight-col {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
}

.pricing-table tbody tr:nth-child(even) {
  background-color: var(--warm-cream);
}

.pricing-table td.feature-col {
  font-weight: 900;
  color: var(--carbon-black);
}

.table-cta-link {
  display: inline-block;
  background-color: var(--flame-orange);
  color: var(--warm-cream);
  font-weight: 900;
  font-size: 0.82rem;
  padding: 6px 12px;
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  transition: transform 120ms ease-out, background-color 120ms ease-out;
}

.table-cta-link:hover {
  background-color: var(--carbon-black);
  color: var(--sand-yellow);
  transform: skewX(-4deg);
}

/* ==========================================================================
   USER REVIEWS SECTION
   ========================================================================== */

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

.review-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.review-stars {
  font-family: var(--font-latin);
  color: var(--flame-orange);
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
}

.review-quote {
  color: var(--carbon-black);
  font-size: 0.96rem;
  margin-bottom: 20px;
  font-weight: 500;
}

.review-author {
  border-top: 2px solid var(--carbon-black);
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.author-name {
  font-weight: 900;
  font-size: 0.95rem;
}

.author-role {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--smoke-gray);
}

/* ==========================================================================
   FAQ SECTION
   ========================================================================== */

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.faq-item {
  background-color: var(--paper-white);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 24px 26px;
  transition: transform 120ms ease-out;
}

.faq-item:hover {
  transform: skewX(-4deg);
}

.faq-q {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: 1.12rem;
  color: var(--carbon-black);
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.faq-q-badge {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
  font-family: var(--font-latin);
  font-weight: 900;
  font-size: 0.8rem;
  padding: 2px 8px;
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  flex-shrink: 0;
}

.faq-a {
  color: var(--smoke-gray);
  font-size: 0.94rem;
}

/* ==========================================================================
   BOTTOM CONVERSION BANNER
   ========================================================================== */

.cta-banner-section {
  padding: 64px 0;
  background-color: var(--flame-orange);
  border-bottom: 2px solid var(--carbon-black);
}

.cta-banner-box {
  background-color: var(--carbon-black);
  color: var(--warm-cream);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 44px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.cta-banner-title {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  color: var(--warm-cream);
  margin-bottom: 8px;
}

.cta-banner-sub {
  color: var(--sand-yellow);
  font-weight: 700;
  font-size: 1rem;
}

/* ==========================================================================
   FOOTER (STRICTLY ONLY THE 4 REQUIRED LINK TITLES OPENING IN NEW PAGES)
   ========================================================================== */

.site-footer {
  background-color: var(--carbon-black);
  padding: 36px 0;
}

.footer-links-only {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-nav-item {
  display: inline-block;
  background-color: var(--warm-cream);
  color: var(--carbon-black);
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: 1rem;
  padding: 12px 28px;
  border: 2px solid var(--warm-cream);
  clip-path: var(--bevel-6px);
  transition: transform 120ms ease-out, background-color 120ms ease-out, color 120ms ease-out;
}

.footer-nav-item:hover {
  background-color: var(--flame-orange);
  color: var(--warm-cream);
  border-color: var(--sand-yellow);
  transform: skewX(-4deg) translateY(-2px);
}

/* ==========================================================================
   SUBPAGES & SEO ARTICLES STYLES (推荐资讯 / 关于我们 / 服务条款 / 隐私政策 / 网站地图)
   ========================================================================== */

.subpage-hero {
  padding: 48px 0 36px;
  border-bottom: 2px solid var(--carbon-black);
  background-color: var(--cream-panel);
}

.article-toc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.toc-link-card {
  background-color: var(--paper-white);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 900;
  font-size: 0.96rem;
  transition: transform 120ms ease-out, background-color 120ms ease-out;
}

.toc-link-card:hover {
  background-color: var(--sand-yellow);
  transform: skewX(-4deg);
}

.toc-num {
  font-family: var(--font-latin);
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--flame-orange);
  flex-shrink: 0;
}

.articles-list-section {
  padding: 56px 0;
}

.seo-article-card {
  background-color: var(--paper-white);
  border: 2px solid var(--carbon-black);
  clip-path: var(--bevel-6px);
  padding: 36px 38px;
  margin-bottom: 36px;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--smoke-gray);
}

.seo-article-card h2 {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: clamp(1.35rem, 2.4vw, 1.8rem);
  color: var(--carbon-black);
  margin-bottom: 18px;
  line-height: 1.35;
}

.seo-article-card h3 {
  font-family: var(--font-cn);
  font-weight: 900;
  font-size: 1.15rem;
  color: var(--carbon-black);
  margin: 22px 0 10px;
  border-left: 5px solid var(--flame-orange);
  padding-left: 10px;
}

.seo-article-card p {
  color: var(--carbon-black);
  font-size: 0.98rem;
  margin-bottom: 14px;
  line-height: 1.8;
}

.seo-article-card ul {
  margin: 10px 0 16px 20px;
}

.seo-article-card li {
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.seo-inline-link {
  color: var(--flame-orange);
  font-weight: 900;
  border-bottom: 2px solid var(--flame-orange);
  padding: 0 2px;
  transition: background-color 120ms ease-out, color 120ms ease-out;
}

.seo-inline-link:hover {
  background-color: var(--sand-yellow);
  color: var(--carbon-black);
}

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES (@media) — MOBILE SINGLE COLUMN & THUMB FRIENDLY
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .pricing-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .advantages-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .header-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .brand-identity {
    justify-content: space-between;
  }

  .main-nav {
    justify-content: flex-start;
    gap: 6px;
  }

  .nav-link {
    font-size: 0.86rem;
    padding: 8px 10px;
  }

  .header-cta {
    width: 100%;
    min-height: 48px;
  }

  .hero-section {
    padding: 36px 0;
  }

  .hero-main {
    padding: 24px 20px;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta-group .btn {
    width: 100%;
    min-height: 52px;
    font-size: 1rem;
  }

  .stat-stack {
    grid-template-columns: 1fr;
  }

  /* Strict Single-Column Display on Mobile */
  .advantages-grid,
  .unlock-grid,
  .pricing-cards-grid,
  .reviews-grid,
  .faq-grid,
  .article-toc-grid {
    grid-template-columns: 1fr;
  }

  .section-block {
    padding: 48px 0;
  }

  .cta-banner-box {
    padding: 28px 22px;
    flex-direction: column;
    align-items: stretch;
  }

  .cta-banner-box .btn {
    width: 100%;
    min-height: 52px;
  }

  .seo-article-card {
    padding: 24px 18px;
  }

  .footer-links-only {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .footer-nav-item {
    width: 100%;
    text-align: center;
    min-height: 48px;
  }
}