```css
/* ================================================================
   油管下载 · 「DAYLIGHT PAPER」Design System v1.0
   Warm Neo-Brutalist Editorial · Awwwards-Inspired
   ================================================================ */

:root {
  --c-teal: #0E7C6B;
  --c-teal-dark: #09594D;
  --c-coral: #FF5D3A;
  --c-coral-dark: #E04420;
  --c-amber: #FFB627;
  --c-amber-light: #FFD166;
  --c-ink: #12372F;
  --c-paper: #FAF8F3;
  --c-paper-deep: #F0EBDF;
  --c-white: #FFFFFF;
  --c-border: #E0DCD2;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-card: 5px 5px 0 var(--c-ink);
  --shadow-card-hover: 8px 8px 0 var(--c-teal);
  --shadow-banner: 10px 10px 0 var(--c-amber);
}

/* ---------- Reset & Base ---------- */

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

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x: hidden;
  background: var(--c-paper);
  color: var(--c-ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--c-amber);
  color: var(--c-ink);
}

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--c-paper-deep); border-left: 1px solid var(--c-border); }
::-webkit-scrollbar-thumb { background: var(--c-teal); border-radius: 6px; border: 2px solid var(--c-paper-deep); }
::-webkit-scrollbar-thumb:hover { background: var(--c-teal-dark); }

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--c-amber);
  outline-offset: 2px;
  border-radius: 4px;
}

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

/* ---------- Core Layout ---------- */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
  scroll-margin-top: 80px;
}

.section:nth-child(even) {
  background:
    linear-gradient(rgba(14, 124, 107, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 124, 107, 0.02) 1px, transparent 1px),
    var(--c-paper-deep);
  background-size: 48px 48px;
}

/* ---------- Header & Navigation ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(250, 248, 243, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 2px solid var(--c-ink);
  box-shadow: 0 2px 0 rgba(18, 55, 47, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.25rem;
  text-decoration: none;
  color: var(--c-ink);
  letter-spacing: -0.02em;
  transition: opacity 0.2s ease;
}

.logo:hover { opacity: 0.8; }

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  background: var(--c-teal);
  color: #fff;
  border: 2px solid var(--c-ink);
  box-shadow: 2px 2px 0 var(--c-ink);
  flex-shrink: 0;
  position: relative;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.main-nav a {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-ink);
  position: relative;
  padding: 4px 0;
  transition: color 0.25s ease;
}

.main-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 3px;
  border-radius: 2px;
  background: var(--c-amber);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-nav a:not(.nav-cta):hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.main-nav a:not(.nav-cta):hover { color: var(--c-teal-dark); }

.nav-cta {
  background: var(--c-coral);
  color: #fff !important;
  padding: 10px 24px;
  border-radius: 10px;
  font-weight: 700;
  border: 2px solid var(--c-ink);
  box-shadow: 3px 3px 0 var(--c-ink);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  letter-spacing: 0.01em;
}

.nav-cta:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--c-ink);
  color: #fff !important;
  filter: brightness(1.05);
}

.nav-cta:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--c-ink);
}

.menu-toggle {
  display: none;
  background: var(--c-white);
  border: 2px solid var(--c-ink);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--c-ink);
  gap: 6px;
  align-items: center;
  box-shadow: 2px 2px 0 var(--c-ink);
  transition: all 0.2s ease;
}

.menu-toggle:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--c-ink);
}

/* ---------- Hero ---------- */

.hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 140px 0 72px;
  background:
    radial-gradient(circle at 88% 18%, rgba(255, 182, 39, 0.22) 0%, transparent 38%),
    radial-gradient(circle at 92% 78%, rgba(14, 124, 107, 0.13) 0%, transparent 32%),
    linear-gradient(rgba(18, 55, 47, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 55, 47, 0.025) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 14%;
  right: -4%;
  width: 280px;
  height: 280px;
  border-radius: 58% 42% 55% 45% / 45% 55% 45% 55%;
  background: rgba(255, 182, 39, 0.18);
  pointer-events: none;
  animation: blobFloat 14s infinite ease-in-out;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 12%;
  left: -3%;
  width: 200px;
  height: 200px;
  border-radius: 42% 58% 48% 52% / 58% 42% 58% 42%;
  background: rgba(14, 124, 107, 0.12);
  pointer-events: none;
  animation: blobFloat 11s infinite ease-in-out reverse;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
  width: 100%;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 680px;
  position: relative;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 7px 18px;
  border-radius: 100px;
  background: var(--c-amber);
  color: var(--c-ink);
  border: 2px solid var(--c-ink);
  box-shadow: 2px 2px 0 var(--c-ink);
  margin-bottom: 24px;
  position: relative;
}

.hero-eyebrow::before {
  content: '✦';
  font-size: 0.8rem;
  color: var(--c-coral);
}

.hero h1 {
  font-size: clamp(2.4rem, 4.8vw, 4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.035em;
  margin-bottom: 24px;
  color: var(--c-ink);
  position: relative;
  font-feature-settings: "palt" 1;
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.68;
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.85;
  font-weight: 400;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
  background: var(--c-white);
  border-radius: var(--radius-lg);
  border: 3px solid var(--c-ink);
  box-shadow: 10px 10px 0 var(--c-teal);
  padding: 8px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-image:hover {
  transform: translate(-2px, -2px);
  box-shadow: 12px 12px 0 var(--c-teal);
}

.hero-image::before {
  content: '';
  position: absolute;
  top: -14px;
  left: 32%;
  width: 90px;
  height: 26px;
  background: rgba(255, 182, 39, 0.75);
  border: 2px solid rgba(18, 55, 47, 0.18);
  border-radius: 2px;
  transform: rotate(-3deg);
  z-index: 5;
  box-shadow: 0 2px 6px rgba(18, 55, 47, 0.1);
  pointer-events: none;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: cover;
  transition: transform 0.4s ease;
}

.hero-image:hover img {
  transform: scale(1.015);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid var(--c-ink);
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  letter-spacing: 0.01em;
  position: relative;
}

.btn-primary {
  background: var(--c-coral);
  color: #fff;
  box-shadow: 4px 4px 0 var(--c-ink);
}

.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--c-ink);
  filter: brightness(1.06);
  color: #fff;
}

.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--c-ink);
  filter: brightness(0.96);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--c-ink);
  color: var(--c-ink);
  box-shadow: 4px 4px 0 var(--c-ink);
}

.btn-outline:hover {
  background: var(--c-ink);
  color: var(--c-paper);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--c-teal);
}

.btn-outline:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--c-ink);
}

/* ---------- Section Labels & Titles ---------- */

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c-teal);
  border-bottom: 3px solid var(--c-amber);
  padding: 0 2px 6px 2px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -0.025em;
  margin-bottom: 14px;
  color: var(--c-ink);
  line-height: 1.15;
}

.section-desc {
  max-width: 620px;
  opacity: 0.68;
  margin-bottom: 44px;
  font-size: 1rem;
  line-height: 1.8;
}

/* ---------- Card Grid ---------- */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

.category-card {
  background: var(--c-white);
  border-radius: var(--radius-md);
  padding: 30px 28px 26px;
  border: 2px solid var(--c-ink);
  box-shadow: 5px 5px 0 var(--c-ink);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.category-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-top: 18px solid var(--c-paper-deep);
  border-left: 18px solid transparent;
  transition: border-top-color 0.25s ease;
}

.category-card:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--c-teal);
  border-color: var(--c-ink);
}

.category-card:hover::after {
  border-top-color: var(--c-amber);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  border: 2px solid var(--c-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
  background: var(--c-amber);
  box-shadow: 2px 2px 0 var(--c-ink);
  color: var(--c-ink);
}

.category-card:nth-child(2n) .card-icon {
  background: var(--c-teal);
  color: #fff;
}

.category-card:nth-child(3n) .card-icon {
  background: var(--c-coral);
  color: #fff;
}

.card-link {
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--c-teal);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  transition: gap 0.2s ease;
}

.card-link:hover {
  gap: 10px;
}

.card-link::after {
  content: '→';
  font-size: 1rem;
}

/* ---------- Feature Block ---------- */

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-image {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  border: 2px solid var(--c-ink);
  box-shadow: 8px 8px 0 var(--c-coral);
  padding: 6px;
  overflow: hidden;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-image:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 var(--c-coral);
}

.feature-image::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  bottom: 8px;
  border-radius: calc(var(--radius-lg) - 8px);
  pointer-events: none;
  z-index: 2;
}

.feature-image img {
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-lg) - 8px);
  object-fit: cover;
}

.feature-text {
  position: relative;
}

.feature-list {
  list-style: none;
  margin-top: 8px;
}

.feature-list li {
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  border-bottom: 1px dashed var(--c-border);
  font-size: 0.95rem;
}

.feature-list li:last-child { border-bottom: none; }

.feature-list li::before {
  content: '✓';
  font-weight: 800;
  color: #fff;
  background: var(--c-teal);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  flex-shrink: 0;
  border: 1.5px solid var(--c-ink);
}

/* ---------- Stats Bar ---------- */

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}

.stat-item {
  padding: 36px 24px 32px;
  border-radius: var(--radius-md);
  border: 2px solid var(--c-ink);
  background: var(--c-white);
  box-shadow: 4px 4px 0 var(--c-ink);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 6px;
  background: var(--c-amber);
  border-radius: 0 0 6px 6px;
  border-left: 2px solid var(--c-ink);
  border-right: 2px solid var(--c-ink);
  border-bottom: 2px solid var(--c-ink);
}

.stat-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--c-amber);
}

.stat-number {
  font-size: clamp(2rem, 3vw, 2.8rem);
  font-weight: 900;
  color: var(--c-teal);
  letter-spacing: -0.03em;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.88rem;
  opacity: 0.6;
  margin-top: 10px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ---------- Content Wall ---------- */

.content-wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}

.content-wall-item {
  background: var(--c-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--c-ink);
  box-shadow: 4px 4px 0 var(--c-ink);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.content-wall-item:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--c-coral);
}

.content-wall-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 2px solid var(--c-ink);
  transition: transform 0.4s ease;
}

.content-wall-item:hover img {
  transform: scale(1.03);
}

.content-wall-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ---------- FAQ ---------- */

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 2px solid var(--c-ink);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
  cursor: pointer;
  background: var(--c-white);
  box-shadow: 3px 3px 0 var(--c-ink);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--c-teal);
}

.faq-item.open {
  box-shadow: 5px 5px 0 var(--c-teal);
}

.faq-item .faq-question {
  padding: 18px 24px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  gap: 16px;
  color: var(--c-ink);
  transition: background 0.2s ease;
}

.faq-item .faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--c-coral);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  line-height: 1;
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  transform: rotate(135deg);
  color: var(--c-teal);
}

.faq-item .faq-answer {
  padding: 0 24px 20px;
  display: none;
  opacity: 0.7;
  font-size: 0.95rem;
  line-height: 1.8;
  border-top: 1px dashed var(--c-border);
  margin-top: 0;
  padding-top: 16px;
}

.faq-item.open .faq-answer {
  display: block;
  animation: faqReveal 0.35s ease;
}

@keyframes faqReveal {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 0.7; transform: translateY(0); }
}

/* ---------- CTA Banner ---------- */

.cta-banner {
  padding: 76px 48px;
  text-align: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--c-teal) 0%, #1AA38C 55%, #2CB69F 100%);
  color: #fff;
  border: 3px solid var(--c-ink);
  box-shadow: 10px 10px 0 var(--c-amber);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -8%;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 182, 39, 0.25);
  pointer-events: none;
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -50%;
  left: -6%;
  width: 180px;
  height: 180px;
  border-radius: 42% 58% 48% 52%;
  background: rgba(255, 93, 58, 0.3);
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary {
  background: #fff;
  color: var(--c-teal-dark);
  box-shadow: 4px 4px 0 var(--c-ink);
  border-color: var(--c-ink);
  position: relative;
  z-index: 2;
}

.cta-banner .btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--c-ink);
  filter: none;
  color: var(--c-teal-dark);
}

.cta-banner .btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--c-ink);
}

/* ---------- Footer ---------- */

.site-footer {
  padding: 64px 0 32px;
  border-top: 4px solid var(--c-ink);
  background: var(--c-paper-deep);
  position: relative;
  scroll-margin-top: 0;
}

.site-footer::before {
  content: '⬇';
  position: absolute;
  bottom: 24px;
  right: 36px;
  font-size: 2.4rem;
  opacity: 0.07;
  font-weight: 900;
  pointer-events: none;
  transform: rotate(12deg);
}

.site-footer .container {
  position: relative;
  z-index: 2;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-brand {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  line-height: 1.6;
}

.footer-brand .logo-icon {
  margin-bottom: 8px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  margin-bottom: 14px;
  color: var(--c-teal);
}

.footer-col a {
  display: inline-block;
  padding: 4px 0;
  opacity: 0.6;
  text-decoration: none;
  color: var(--c-ink);
  transition: all 0.2s ease;
  font-size: 0.88rem;
  font-weight: 500;
}

.footer-col a:hover {
  opacity: 1;
  padding-left: 6px;
  color: var(--c-teal);
}

.footer-bottom {
  border-top: 2px solid rgba(18, 55, 47, 0.08);
  margin-top: 48px;
  padding-top: 22px;
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.55;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

/* ---------- Utilities ---------- */

.text-accent {
  color: var(--c-coral);
  font-weight: 700;
}

.text-center { text-align: center; }

.seo-description {
  max-width: 640px;
  margin: 0 auto 48px;
  opacity: 0.68;
  font-size: 0.95rem;
  line-height: 1.8;
  text-align: center;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ---------- Animations ---------- */

@keyframes blobFloat {
  0%, 100% {
    border-radius: 58% 42% 55% 45% / 45% 55% 45% 55%;
    transform: translate(0, 0) rotate(0deg);
  }
  33% {
    border-radius: 45% 55% 48% 52% / 55% 45% 58% 42%;
    transform: translate(12px, -16px) rotate(6deg);
  }
  66% {
    border-radius: 52% 48% 42% 58% / 48% 52% 42% 58%;
    transform: translate(-6px, 12px) rotate(-4deg);
  }
}

@keyframes faqReveal {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 0.7; transform: translateY(0); }
}

/* ---------- Responsive: ≤768px ---------- */

@media (max-width: 768px) {
  .feature-block {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--c-paper);
    padding: 24px;
    gap: 20px;
    border-bottom: 2px solid var(--c-ink);
    box-shadow: 0 16px 32px rgba(18, 55, 47, 0.12);
    align-items: flex-start;
  }

  .main-nav.open a {
    font-size: 1rem;
    width: 100%;
    padding: 8px 4px;
    border-bottom: 1px solid var(--c-border);
  }

  .main-nav.open .nav-cta {
    border-bottom: 2px solid var(--c-ink);
    text-align: center;
  }

  .hero {
    min-height: auto;
    padding: 120px 0 56px;
  }

  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
    padding: 0 20px;
  }

  .hero h1 {
    font-size: clamp(2rem, 7vw, 2.8rem);
    letter-spacing: -0.028em;
  }

  .hero p {
    font-size: 1rem;
    margin-bottom: 28px;
  }

  .hero-buttons {
    flex-direction: row;
  }

  .hero-image {
    max-width: 480px;
    margin: 0 auto;
    box-shadow: 7px 7px 0 var(--c-teal);
  }

  .hero::before {
    width: 160px;
    height: 160px;
    top: 6%;
    right: -12%;
  }

  .hero::after {
    width: 120px;
    height: 120px;
    bottom: 4%;
    left: -10%;
  }

  .section {
    padding: 72px 0;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .cards-grid {
    gap: 20px;
  }

  .cta-banner {
    padding: 52px 32px;
    border-radius: 20px;
  }

  .cta-banner h2 {
    font-size: 1.6rem;
  }
}

/* ---------- Responsive: ≤480px ---------- */

@media (max-width: 480px) {
  .cards-grid,
  .content-wall,
  .stats-bar {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .hero .container {
    gap: 36px;
  }

  .hero h1 {
    font-size: 1.9rem;
  }

  .hero-eyebrow {
    font-size: 0.7rem;
    padding: 6px 14px;
  }

  .section {
    padding: 56px 0;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .container {
    padding: 0 18px;
  }

  .header-inner {
    padding: 0 18px;
    gap: 12px;
  }

  .logo {
    font-size: 1rem;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
  }

  .nav-cta {
    display: none;
  }

  .cta-banner {
    padding: 44px 24px;
  }

  .cta-banner h2 {
    font-size: 1.4rem;
  }

  .cta-banner .btn-primary {
    width: 100%;
    justify-content: center;
  }

  .stat-item {
    padding: 28px 16px 24px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}