/* ===================================================================
   JUST MY SOCKS — SWISS BAUHAUS MODERNIST STYLESHEET
   Aesthetic: Stark Gallery White (#ffffff), Dense Typographic Ink-Black (#0a0a0c),
   and Bold Safety Orange (#ff5e00). Zero generic AI icons.
   Asymmetric poster grid architecture, razor-sharp 1px hairlines,
   colossal grotesk typography, monospace telemetry ribbons,
   and 0ms color-snap micro-interactions on plan blocks.
   =================================================================== */

/* --- CSS Variables & Design Tokens --- */
:root {
  /* Day / Light Mode (Default) */
  --bg-main: #ffffff;
  --bg-subtle: #f5f5f7;
  --bg-inverse: #0a0a0c;
  --ink-black: #0a0a0c;
  --ink-secondary: #3e3e42;
  --ink-muted: #71717a;
  --ink-white: #ffffff;
  
  --line-black: #0a0a0c;
  --line-subtle: #e4e4e7;
  --line-grid: rgba(10, 10, 12, 0.12);

  /* Signature Bauhaus Color */
  --safety-orange: #ff5e00;
  --safety-orange-hover: #e05300;
  --safety-orange-subtle: rgba(255, 94, 0, 0.08);

  /* Monospace Font Family */
  --font-sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Arial", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Monaco, "Cascadia Mono", Consolas, "Liberation Mono", "Courier New", monospace;

  --border-hairline: 1px solid var(--line-black);
  --border-subtle: 1px solid var(--line-subtle);

  --transition-smooth: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark Mode Overrides */
[data-theme="dark"] {
  --bg-main: #0a0a0c;
  --bg-subtle: #141418;
  --bg-inverse: #ffffff;
  --ink-black: #ffffff;
  --ink-secondary: #a1a1aa;
  --ink-muted: #71717a;
  --ink-white: #0a0a0c;

  --line-black: #ffffff;
  --line-subtle: #27272a;
  --line-grid: rgba(255, 255, 255, 0.15);

  --safety-orange: #ff5e00;
  --safety-orange-hover: #ff7526;
  --safety-orange-subtle: rgba(255, 94, 0, 0.15);

  --border-hairline: 1px solid var(--line-black);
  --border-subtle: 1px solid var(--line-subtle);
}

/* --- Base Reset & Typography --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--ink-black);
  font-size: 16px;
  line-height: 1.5;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-main);
  color: var(--ink-black);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Typography Hierarchy - Swiss Grotesk Style */
h1, h2, h3, h4, h5, h6 {
  color: var(--ink-black);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

p {
  color: var(--ink-secondary);
  line-height: 1.65;
}

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

/* Monospace Telemetry Elements */
.mono-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.mono-orange {
  color: var(--safety-orange);
  font-weight: 700;
}

/* Container & Grid Wrapper */
.container {
  width: 100%;
  max-width: 1360px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

.container-narrow {
  max-width: 920px;
}

/* Hairline Grid Dividers */
.hairline-top {
  border-top: var(--border-hairline);
}
.hairline-bottom {
  border-bottom: var(--border-hairline);
}
.hairline-left {
  border-left: var(--border-hairline);
}
.hairline-right {
  border-right: var(--border-hairline);
}

/* --- Top Telemetry Ribbon (Swiss Monospace Ticker) --- */
.telemetry-ribbon {
  background-color: var(--ink-black);
  color: var(--ink-white);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  padding: 0.45rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  overflow-x: auto;
  white-space: nowrap;
  border-bottom: var(--border-hairline);
}

.telemetry-group {
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
}

.telemetry-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.telemetry-dot {
  width: 6px;
  height: 6px;
  background-color: var(--safety-orange);
  display: inline-block;
}

/* --- Header & Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background-color: var(--bg-main);
  border-bottom: var(--border-hairline);
  transition: background-color 0.25s ease;
}

.nav-container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  height: 76px;
}

.brand-block {
  display: flex;
  align-items: center;
  padding-right: 2rem;
  height: 100%;
  border-right: var(--border-hairline);
}

.brand-title {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge-box {
  background-color: var(--safety-orange);
  color: #0a0a0c;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 7px;
  border: 1px solid #0a0a0c;
  line-height: 1.2;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  height: 100%;
  list-style: none;
  margin: 0;
  padding: 0 1.5rem;
  gap: 0;
}

.nav-item {
  height: 100%;
  display: flex;
  align-items: center;
}

.nav-link {
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-black);
  position: relative;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

.nav-link:hover {
  background-color: var(--safety-orange);
  color: #0a0a0c;
}

.nav-link.nav-link-special {
  color: var(--safety-orange);
  font-weight: 800;
}

.nav-link.nav-link-special:hover {
  background-color: var(--safety-orange);
  color: #0a0a0c;
}

.nav-actions {
  display: flex;
  align-items: center;
  height: 100%;
  border-left: var(--border-hairline);
}

/* Precise Minimalist Theme Switch Button */
.theme-switch-btn {
  background: transparent;
  border: none;
  border-right: var(--border-hairline);
  height: 76px;
  width: 76px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  cursor: pointer;
  color: var(--ink-black);
  transition: background-color var(--transition-smooth);
  outline: none;
  padding: 0;
}

.theme-switch-btn:hover {
  background-color: var(--safety-orange);
  color: #0a0a0c;
}

.theme-switch-btn svg {
  width: 20px;
  height: 20px;
  stroke-width: 2.2;
}

.theme-switch-btn span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.icon-sun {
  display: block;
}
.icon-moon {
  display: none;
}

[data-theme="dark"] .icon-sun {
  display: none;
}
[data-theme="dark"] .icon-moon {
  display: block;
}

/* Header Direct CTA */
.nav-cta-btn {
  height: 100%;
  display: inline-flex;
  align-items: center;
  padding: 0 2rem;
  background-color: var(--ink-black);
  color: var(--ink-white);
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
  white-space: nowrap;
}

.nav-cta-btn:hover {
  background-color: var(--safety-orange);
  color: #0a0a0c;
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  border-left: var(--border-hairline);
  height: 76px;
  width: 76px;
  cursor: pointer;
  color: var(--ink-black);
  padding: 0;
  align-items: center;
  justify-content: center;
}

/* --- Hero Section: Asymmetric Swiss Poster Architecture --- */
.hero-poster-section {
  position: relative;
  border-bottom: var(--border-hairline);
  background-color: var(--bg-main);
}

.hero-poster-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr;
  min-height: 580px;
}

.hero-main-column {
  padding: 4.5rem 3.5rem 4rem 2rem;
  border-right: var(--border-hairline);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: var(--border-hairline);
}

/* Colossal Grotesk Headline */
.colossal-headline {
  font-size: clamp(3rem, 6.2vw, 5.8rem);
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 0.95;
  margin-bottom: 2rem;
  text-transform: uppercase;
}

.colossal-headline .headline-brand {
  display: inline-block;
  background-color: var(--safety-orange);
  color: #0a0a0c;
  padding: 0 14px;
  margin-right: 8px;
  letter-spacing: -0.04em;
}

.hero-intro-text {
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink-secondary);
  max-width: 820px;
  margin-bottom: 2.5rem;
}

.hero-actions-bar {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

/* Swiss Buttons */
.btn-swiss {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  padding: 1.15rem 2.25rem;
  border: var(--border-hairline);
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.btn-swiss-primary {
  background-color: var(--safety-orange);
  color: #0a0a0c;
  border-color: var(--line-black);
}

.btn-swiss-primary:hover {
  background-color: var(--ink-black);
  color: var(--ink-white);
}

.btn-swiss-secondary {
  background-color: transparent;
  color: var(--ink-black);
}

.btn-swiss-secondary:hover {
  background-color: var(--ink-black);
  color: var(--ink-white);
}

/* Hero Side Column (Telemetry & Raw Metrics) */
.hero-side-column {
  display: flex;
  flex-direction: column;
}

.side-metric-cell {
  padding: 2.5rem 2rem;
  border-bottom: var(--border-hairline);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.side-metric-cell:last-child {
  border-bottom: none;
  flex-grow: 1;
  background-color: var(--bg-subtle);
}

.metric-number {
  font-family: var(--font-sans);
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.05em;
  margin: 0.6rem 0 0.35rem;
  color: var(--ink-black);
}

.metric-number-orange {
  color: var(--safety-orange);
}

.metric-desc {
  font-size: 0.92rem;
  color: var(--ink-secondary);
}

/* --- Section Title Poster Ribbon --- */
.section-poster-header {
  border-bottom: var(--border-hairline);
  padding: 2.75rem 2rem 2.25rem;
  background-color: var(--bg-main);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.section-tag-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.section-index {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 800;
  background-color: var(--ink-black);
  color: var(--ink-white);
  padding: 2px 8px;
}

.section-headline {
  font-size: clamp(2rem, 3.8vw, 3.25rem);
  font-weight: 900;
  letter-spacing: -0.04em;
}

.section-desc-aside {
  max-width: 460px;
  font-size: 1rem;
  color: var(--ink-secondary);
  line-height: 1.6;
}

/* --- Product Core Advantages: 3 Asymmetric Graphic Modules --- */
.advantages-poster-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: var(--border-hairline);
}

.adv-block {
  padding: 3.5rem 2.5rem;
  border-right: var(--border-hairline);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 440px;
  position: relative;
  transition: background-color var(--transition-smooth);
}

.adv-block:last-child {
  border-right: none;
}

.adv-block:hover {
  background-color: var(--bg-subtle);
}

.adv-num {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  color: var(--line-subtle);
  margin-bottom: 1.5rem;
}

.adv-block:hover .adv-num {
  color: var(--safety-orange);
}

.adv-title {
  font-size: 1.65rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  line-height: 1.15;
}

.adv-text {
  font-size: 1rem;
  color: var(--ink-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.adv-telemetry-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.adv-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  border: var(--border-hairline);
  padding: 4px 8px;
  background-color: var(--bg-main);
  color: var(--ink-black);
}

/* --- Streaming & AI Showcase Poster Modules --- */
.showcase-poster-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: var(--border-hairline);
}

.showcase-col {
  padding: 4rem 3rem;
  display: flex;
  flex-direction: column;
  position: relative;
}

.showcase-col:first-child {
  border-right: var(--border-hairline);
}

.showcase-badge-pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 800;
  background-color: var(--ink-black);
  color: var(--ink-white);
  padding: 4px 12px;
  margin-bottom: 1.5rem;
  width: fit-content;
}

.showcase-col.orange-header .showcase-badge-pill {
  background-color: var(--safety-orange);
  color: #0a0a0c;
  border: 1px solid #0a0a0c;
}

.showcase-title {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  margin-bottom: 1.25rem;
  line-height: 1.1;
}

.showcase-desc {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--ink-secondary);
  margin-bottom: 2.5rem;
}

/* Verified Matrix Items (Cardless Sharp Hairlines) */
.verified-matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: var(--border-hairline);
  margin-top: auto;
}

.matrix-cell {
  padding: 1.15rem 1.25rem;
  border-bottom: var(--border-hairline);
  border-right: var(--border-hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
}

.matrix-cell:nth-child(2n) {
  border-right: none;
}

.matrix-cell:nth-last-child(-n+2) {
  border-bottom: none;
}

.matrix-tag-ok {
  background-color: var(--safety-orange);
  color: #0a0a0c;
  padding: 2px 6px;
  font-size: 0.72rem;
  font-weight: 800;
}

/* --- Real Pricing Comparison Section --- */
/* Zero-Latency Color-Snap Micro-Interaction Core */
.pricing-section {
  background-color: var(--bg-main);
  border-bottom: var(--border-hairline);
}

.pricing-coupon-callout {
  padding: 1rem 2rem;
  background-color: var(--bg-subtle);
  border-bottom: var(--border-hairline);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.coupon-code {
  background-color: var(--safety-orange);
  color: #0a0a0c;
  font-weight: 900;
  padding: 2px 8px;
  border: 1px solid #0a0a0c;
}

.plans-poster-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

/* ZERO-LATENCY COLOR-SNAP MICRO-INTERACTION (0ms transition) */
.plan-snap-block {
  padding: 3rem 2.25rem;
  border-right: var(--border-hairline);
  display: flex;
  flex-direction: column;
  position: relative;
  background-color: var(--bg-main);
  color: var(--ink-black);
  /* 0ms CHROMATIC SNAP HOVER EFFECT */
  transition: none !important;
  cursor: pointer;
}

.plan-snap-block:last-child {
  border-right: none;
}

.plan-snap-block:hover {
  background-color: var(--safety-orange) !important;
  color: #0a0a0c !important;
}

.plan-snap-block:hover * {
  color: #0a0a0c !important;
  border-color: #0a0a0c !important;
}

.plan-snap-block.featured-block {
  background-color: var(--bg-subtle);
}

.featured-flag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  background-color: var(--ink-black);
  color: var(--ink-white);
  padding: 3px 8px;
  width: fit-content;
  margin-bottom: 1.25rem;
}

.plan-snap-block:hover .featured-flag {
  background-color: #0a0a0c;
  color: var(--safety-orange);
}

.plan-header-row {
  margin-bottom: 1.5rem;
}

.plan-name-title {
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  margin-bottom: 0.35rem;
}

.plan-location-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-muted);
}

.plan-price-huge {
  margin: 1.5rem 0 2rem;
  padding-bottom: 1.5rem;
  border-bottom: var(--border-hairline);
}

.plan-price-val {
  font-size: 3.5rem;
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 1;
}

.plan-price-period {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
}

.plan-spec-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-grow: 1;
}

.plan-spec-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-size: 0.92rem;
  border-bottom: 1px dashed var(--line-subtle);
  padding-bottom: 0.5rem;
}

.plan-spec-label {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-muted);
}

.plan-spec-value {
  font-weight: 800;
}

.plan-cta-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 1.15rem;
  background-color: var(--ink-black);
  color: var(--ink-white);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border: var(--border-hairline);
  transition: none !important;
  text-align: center;
}

.plan-snap-block:hover .plan-cta-btn {
  background-color: #0a0a0c !important;
  color: #ffffff !important;
  border-color: #0a0a0c !important;
}

/* Feature Matrix Table: Swiss Clean Hairlines */
.pricing-matrix-bar {
  border-top: var(--border-hairline);
  padding: 2.5rem 2rem;
  overflow-x: auto;
}

.swiss-matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.swiss-matrix-table th, .swiss-matrix-table td {
  padding: 1.1rem 1.25rem;
  border-bottom: var(--border-hairline);
  text-align: left;
}

.swiss-matrix-table th {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  background-color: var(--bg-subtle);
  color: var(--ink-black);
}

.swiss-matrix-table td.center, .swiss-matrix-table th.center {
  text-align: center;
}

.swiss-matrix-table tr:hover td {
  background-color: var(--safety-orange-subtle);
}

/* --- FAQ Section: Swiss Typographic Accordion --- */
.faq-section {
  background-color: var(--bg-main);
  border-bottom: var(--border-hairline);
}

.faq-list-grid {
  border-top: var(--border-hairline);
}

.faq-accordion-item {
  border-bottom: var(--border-hairline);
}

.faq-accordion-trigger {
  width: 100%;
  padding: 2rem;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  text-align: left;
  outline: none;
  transition: background-color var(--transition-smooth);
}

.faq-accordion-trigger:hover {
  background-color: var(--bg-subtle);
}

.faq-accordion-item.active .faq-accordion-trigger {
  background-color: var(--safety-orange);
  color: #0a0a0c;
}

.faq-accordion-item.active .faq-q-text,
.faq-accordion-item.active .faq-q-idx {
  color: #0a0a0c;
}

.faq-q-title-wrap {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
}

.faq-q-idx {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--safety-orange);
}

.faq-q-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink-black);
}

.faq-crosshair {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  transition: transform var(--transition-smooth);
}

.faq-accordion-item.active .faq-crosshair {
  transform: rotate(45deg);
}

.faq-accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 2rem;
  background-color: var(--bg-subtle);
}

.faq-accordion-item.active .faq-accordion-body {
  max-height: 500px;
  padding: 1.75rem 2rem 2.25rem;
}

.faq-body-content {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink-secondary);
  max-width: 900px;
}

/* --- User Reviews: Minimalist Editorial Grid --- */
.reviews-section {
  background-color: var(--bg-main);
  border-bottom: var(--border-hairline);
}

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

.review-poster-card {
  padding: 3.5rem 2.5rem;
  border-right: var(--border-hairline);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-poster-card:last-child {
  border-right: none;
}

.review-quote {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.75;
  color: var(--ink-black);
  margin-bottom: 2rem;
}

.review-author-meta {
  border-top: var(--border-hairline);
  padding-top: 1.25rem;
}

.author-name {
  font-size: 1rem;
  font-weight: 900;
  margin-bottom: 2px;
}

.author-sub {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-muted);
}

/* --- Banner CTA Section --- */
.banner-poster-section {
  background-color: var(--safety-orange);
  color: #0a0a0c;
  padding: 5rem 2rem;
  border-bottom: var(--border-hairline);
}

.banner-poster-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
}

.banner-poster-title {
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.05em;
  color: #0a0a0c;
}

.banner-btn-black {
  background-color: #0a0a0c;
  color: #ffffff;
  padding: 1.35rem 2.75rem;
  font-size: 1.1rem;
  font-weight: 900;
  text-transform: uppercase;
  border: 2px solid #0a0a0c;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all var(--transition-smooth);
}

.banner-btn-black:hover {
  background-color: #ffffff;
  color: #0a0a0c;
}

/* --- Footer: STRICTLY FOUR TITLES ONLY (打开新页面) --- */
.site-footer {
  background-color: var(--bg-main);
  padding: 4rem 2rem 3rem;
  border-top: var(--border-hairline);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.footer-nav-four {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
  border-top: var(--border-hairline);
  border-bottom: var(--border-hairline);
}

.footer-nav-item {
  border-right: var(--border-hairline);
}

.footer-nav-item:last-child {
  border-right: none;
}

.footer-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 1.25rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  color: var(--ink-black);
  transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

.footer-nav-link:hover {
  background-color: var(--safety-orange);
  color: #0a0a0c;
}

.footer-arrow {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
}

.footer-meta-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-muted);
  flex-wrap: wrap;
  gap: 1rem;
}

/* --- Article / Subpage Content Styles --- */
.subpage-container {
  padding: 4rem 2rem 6rem;
}

.article-header {
  border-bottom: var(--border-hairline);
  padding-bottom: 2.5rem;
  margin-bottom: 3rem;
}

.article-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  margin: 1rem 0;
}

.article-body h2 {
  font-size: 1.85rem;
  margin-top: 3rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: var(--border-hairline);
}

.article-body p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.article-body ul, .article-body ol {
  margin-bottom: 2rem;
  padding-left: 1.75rem;
  font-size: 1.05rem;
  line-height: 1.8;
}

.article-body li {
  margin-bottom: 0.6rem;
}

.callout-box {
  padding: 1.75rem 2rem;
  border: var(--border-hairline);
  margin: 2rem 0;
  background-color: var(--bg-subtle);
}

.callout-box-orange {
  border-left: 6px solid var(--safety-orange);
}

.callout-box-black {
  background-color: var(--ink-black);
  color: var(--ink-white);
}

.callout-box-black p {
  color: var(--ink-white);
}

/* Dispatch News Card Grid */
.dispatch-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border: var(--border-hairline);
  margin-top: 2rem;
}

.dispatch-card {
  padding: 2.5rem;
  border-bottom: var(--border-hairline);
  border-right: var(--border-hairline);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: background-color var(--transition-smooth);
}

.dispatch-card:nth-child(2n) {
  border-right: none;
}

.dispatch-card:hover {
  background-color: var(--safety-orange-subtle);
}

.dispatch-card-title {
  font-size: 1.5rem;
  font-weight: 900;
  margin: 0.75rem 0 1rem;
}

/* --- Mobile Responsiveness (@media) --- */
@media (max-width: 1024px) {
  .hero-poster-grid {
    grid-template-columns: 1fr;
  }
  .hero-main-column {
    border-right: none;
    border-bottom: var(--border-hairline);
    padding: 3rem 2rem;
  }
  .hero-side-column {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }
  .side-metric-cell {
    border-right: var(--border-hairline);
    border-bottom: none;
    padding: 2rem 1.5rem;
  }
  .side-metric-cell:last-child {
    border-right: none;
  }
  .advantages-poster-grid {
    grid-template-columns: 1fr;
  }
  .adv-block {
    border-right: none;
    border-bottom: var(--border-hairline);
    min-height: auto;
    padding: 3rem 2rem;
  }
  .adv-block:last-child {
    border-bottom: none;
  }
  .showcase-poster-grid {
    grid-template-columns: 1fr;
  }
  .showcase-col:first-child {
    border-right: none;
    border-bottom: var(--border-hairline);
  }
  .plans-poster-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .plan-snap-block:nth-child(2) {
    border-right: none;
  }
  .plan-snap-block:nth-child(-n+2) {
    border-bottom: var(--border-hairline);
  }
  .reviews-poster-grid {
    grid-template-columns: 1fr;
  }
  .review-poster-card {
    border-right: none;
    border-bottom: var(--border-hairline);
  }
  .review-poster-card:last-child {
    border-bottom: none;
  }
  .footer-nav-four {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-nav-item:nth-child(2) {
    border-right: none;
  }
  .footer-nav-item:nth-child(-n+2) {
    border-bottom: var(--border-hairline);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background-color: var(--bg-main);
    border-bottom: var(--border-hairline);
    padding: 0;
    z-index: 300;
  }
  .nav-menu.active .nav-item {
    width: 100%;
    border-bottom: var(--border-hairline);
    height: 56px;
  }
  .nav-menu.active .nav-link {
    width: 100%;
    padding: 0 2rem;
  }
  .mobile-nav-toggle {
    display: flex;
  }
  .hero-side-column {
    grid-template-columns: 1fr;
  }
  .side-metric-cell {
    border-right: none;
    border-bottom: var(--border-hairline);
  }
  .side-metric-cell:last-child {
    border-bottom: none;
  }
  .plans-poster-grid {
    grid-template-columns: 1fr;
  }
  .plan-snap-block {
    border-right: none;
    border-bottom: var(--border-hairline);
  }
  .plan-snap-block:last-child {
    border-bottom: none;
  }
  .footer-nav-four {
    grid-template-columns: 1fr;
  }
  .footer-nav-item {
    border-right: none;
    border-bottom: var(--border-hairline);
  }
  .footer-nav-item:last-child {
    border-bottom: none;
  }
  .verified-matrix {
    grid-template-columns: 1fr;
  }
  .matrix-cell {
    border-right: none;
  }
  .dispatch-grid {
    grid-template-columns: 1fr;
  }
  .dispatch-card {
    border-right: none;
  }
  .colossal-headline {
    font-size: 2.8rem;
  }
  .hero-main-column {
    padding: 2.5rem 1.25rem;
  }
  .showcase-col {
    padding: 2.5rem 1.25rem;
  }
  .section-poster-header {
    padding: 2rem 1.25rem;
  }
}