:root {
  --bg: #061325;
  --bg-deep: #030914;
  --panel: rgba(8, 21, 41, 0.78);
  --panel-border: rgba(198, 150, 77, 0.22);
  --gold: #d7a24a;
  --gold-soft: #f0c980;
  --text: #f5ead4;
  --muted: #b9aa8e;
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: linear-gradient(180deg, #03101f 0%, #071426 44%, #08162a 100%);
  color: var(--text);
  overflow-x: hidden;
}

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

button {
  font: inherit;
}

.page-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(4, 14, 28, 0.10), rgba(2, 8, 16, 0.34)),
    radial-gradient(circle at 82% 18%, rgba(214, 161, 74, 0.05), transparent 22%),
    radial-gradient(circle at 18% 22%, rgba(255, 214, 140, 0.03), transparent 18%);
  z-index: -2;
}

.page-bg::before,
.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
}

.page-bg::before {
  background:
    linear-gradient(to top, rgba(2, 8, 16, 0.42), transparent 38%),
    repeating-linear-gradient(
      90deg,
      transparent 0 120px,
      rgba(255, 255, 255, 0.01) 120px 121px
    );
  opacity: 0.34;
}

.page-bg::after {
  background:
    repeating-linear-gradient(
      0deg,
      transparent 0 80px,
      rgba(255, 255, 255, 0.012) 80px 81px
    );
  opacity: 0.22;
}

.container {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(2, 10, 20, 0.78);
  border-bottom: 1px solid rgba(215, 162, 74, 0.12);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1440px, calc(100% - 120px));
  min-height: 78px;
  margin: 0 auto;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo-wrap {
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 10px;
}

.brand-logo {
  width: 46px;
  height: 46px;
  max-width: 46px;
  max-height: 46px;
  object-fit: contain;
  display: block;
  flex: 0 0 auto;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.28));
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-text strong {
  font-size: 20px;
  letter-spacing: 1px;
}

.brand-text span {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 3px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  position: relative;
  color: #d7d0c0;
  font-weight: 600;
}

.nav-links a.active,
.nav-links a:hover {
  color: var(--gold-soft);
}

.nav-links a.active::after,
.nav-links a:hover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -12px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.chain-pill {
  padding: 8px 12px;
  border: 1px solid rgba(215, 162, 74, 0.18);
  border-radius: 999px;
  font-size: 12px;
  color: var(--gold-soft);
  background: rgba(255,255,255,0.03);
}

.primary-btn,
.ghost-btn {
  border: 1px solid rgba(215, 162, 74, 0.55);
  border-radius: 12px;
  cursor: pointer;
  transition: .25s ease;
}

.primary-btn {
  color: #1b1408;
  background: linear-gradient(180deg, #f0c980, #c98f3f);
  padding: 12px 20px;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(201, 143, 63, 0.2);
}

.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(201, 143, 63, 0.28);
}

.primary-btn.large {
  min-width: 190px;
  padding: 14px 28px;
  font-size: 18px;
}

.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 150px;
  padding: 12px 18px;
  color: var(--gold-soft);
  background: rgba(255,255,255,0.04);
}

.ghost-btn:hover {
  background: rgba(255,255,255,0.08);
}

.menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  color: var(--text);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(215, 162, 74, 0.18);
  border-radius: 12px;
  font-size: 22px;
  line-height: 1;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 12px;
  padding: 14px 22px 18px;
  background: rgba(3, 12, 22, 0.94);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(215, 162, 74, 0.10);
}

.mobile-menu a {
  color: #e8dcc1;
  font-weight: 600;
}

.mobile-menu-cta {
  margin-top: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid rgba(215, 162, 74, 0.55);
  border-radius: 12px;
  color: #1b1408 !important;
  background: linear-gradient(180deg, #f0c980, #c98f3f);
}

.hero {
  position: relative;
  padding: 0 0 10px;
}

.hero .container {
  width: 100%;
  max-width: none;
}

.hero-stage {
  position: relative;
  min-height: 640px;
  overflow: hidden;
  border: 1px solid rgba(215, 162, 74, 0.12);
  border-top: 0;
  border-radius: 0 0 24px 24px;
  background: linear-gradient(180deg, rgba(3, 9, 18, 0.32), rgba(2, 6, 12, 0.86));
}

.hero-safe {
  position: relative;
  z-index: 2;
  width: min(1440px, calc(100% - 120px));
  min-height: 640px;
  margin: 0 auto;
  padding: 0 0 148px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-scene,
.hero-scene::before,
.hero-scene::after {
  position: absolute;
  inset: 0;
  content: "";
}

.hero-scene {
  background: url("./素材/背景.webp") center top / cover no-repeat;
}

.hero-scene::before {
  background: transparent;
}

.hero-scene::after {
  background: transparent;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold-soft);
  letter-spacing: 8px;
  font-size: 14px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 560px;
  padding-top: 0;
}

.hero-copy h1 {
  margin: 0;
  max-width: none;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
  font-size: clamp(30px, 3.45vw, 48px);
  line-height: 1.12;
  letter-spacing: 0.5px;
  white-space: nowrap;
  text-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

.hero-desc {
  margin: 16px 0 14px;
  max-width: 470px;
  color: #dccfb9;
  font-size: 16px;
  line-height: 1.8;
  text-shadow: 0 8px 24px rgba(0, 0, 0, 0.34);
}

.hero-banner {
  width: fit-content;
  max-width: 100%;
  padding: 14px 18px;
  border-radius: 16px;
  border: 1px solid rgba(215, 162, 74, 0.4);
  background: linear-gradient(180deg, rgba(30, 16, 4, 0.84), rgba(14, 10, 5, 0.9));
  box-shadow: var(--shadow);
}

.hero-banner-title {
  font-size: clamp(18px, 1.75vw, 28px);
  font-weight: 800;
  color: var(--gold-soft);
  white-space: nowrap;
}

.hero-banner-sub {
  margin-top: 10px;
  color: #f0ddba;
  font-size: 16px;
}

.feature-grid {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 24px;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.feature-card {
  display: flex;
  gap: 12px;
  padding: 15px 14px;
  border-radius: 16px;
  border: 1px solid var(--panel-border);
  background: linear-gradient(180deg, rgba(9, 20, 39, 0.84), rgba(6, 14, 28, 0.88));
  box-shadow: var(--shadow);
}

.feature-icon {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.feature-card h3 {
  margin: 0 0 6px;
  font-size: 18px;
  color: var(--gold-soft);
}

.feature-card p {
  margin: 0;
  color: #b9ad99;
  line-height: 1.6;
  font-size: 14px;
}

.hero-product {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.hero-visual-glow {
  position: absolute;
  right: 150px;
  top: 58px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(233, 173, 79, 0.16), rgba(233, 173, 79, 0.02) 58%, transparent 76%);
  filter: blur(18px);
}

.hero-pack-image {
  position: absolute;
  right: 72px;
  top: 22px;
  z-index: 1;
  width: min(410px, 34vw);
  max-height: 500px;
  object-fit: contain;
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.42));
}

.pack-card {
  position: relative;
  width: min(380px, 78%);
  aspect-ratio: 0.82;
  display: flex;
  flex-direction: column;
  align-items: center;
  filter: drop-shadow(0 22px 40px rgba(0,0,0,.42));
}

.pack-lid {
  width: 84%;
  height: 96px;
  border: 2px solid rgba(240, 201, 128, 0.55);
  border-bottom: 0;
  border-radius: 14px 14px 0 0;
  background: linear-gradient(180deg, rgba(28, 34, 60, 0.95), rgba(7, 12, 25, 0.95));
  transform: perspective(500px) rotateX(40deg);
}

.pack-cigarettes {
  width: 74%;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: -18px;
  z-index: 2;
}

.pack-cigarettes span {
  display: block;
  height: 98px;
  border-radius: 14px 14px 8px 8px;
  background:
    linear-gradient(180deg, #fbf9f4 0 35%, #c78a45 35% 100%);
  box-shadow: inset 0 -10px 14px rgba(0,0,0,.12);
}

.pack-body {
  width: 86%;
  margin-top: -14px;
  padding: 46px 28px 36px;
  border: 2px solid rgba(240, 201, 128, 0.28);
  border-radius: 12px 12px 18px 18px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.92), rgba(228, 214, 191, .96));
  color: #1f2228;
  text-align: center;
}

.pack-logo {
  font-size: 96px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 4px;
}

.pack-title {
  margin-top: 14px;
  font-size: 32px;
  font-weight: 700;
}

.pack-sub {
  margin-top: 10px;
  font-size: 18px;
  letter-spacing: 3px;
}

.smoke {
  position: absolute;
  width: 140px;
  height: 220px;
  border-radius: 50%;
  filter: blur(18px);
  background: radial-gradient(circle, rgba(255,255,255,.28), transparent 70%);
  animation: smokeFloat 5.5s ease-in-out infinite;
}

.smoke-1 { top: 18px; left: 22%; }
.smoke-2 { top: 0; right: 20%; animation-delay: 1.2s; }
.smoke-3 { top: 80px; right: 32%; animation-delay: 2.1s; }

@keyframes smokeFloat {
  0%,100% { transform: translateY(0) scale(1); opacity: .32; }
  50% { transform: translateY(-20px) scale(1.08); opacity: .56; }
}

.story-stage-wrap,
.stats-section,
.cta-section,
.faq-section {
  padding: 18px 0;
}

.story-stage-wrap .container,
.stats-section .container,
.cta-section .container,
.faq-section .container {
  width: min(1440px, calc(100% - 120px));
  max-width: none;
  margin: 0 auto;
}

.two-col {
  display: grid;
  grid-template-columns: .95fr 1.35fr;
  gap: 18px;
}

.panel,
.cta-box,
.stat-box {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
}

.panel {
  border-radius: 22px;
  padding: 22px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  color: var(--gold-soft);
  font-weight: 700;
  letter-spacing: 1px;
}

.story-panel p {
  color: #d3c6b1;
  line-height: 1.9;
  margin: 0 0 14px;
}

.stage-line {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.stage-card {
  position: relative;
  min-height: 138px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.02);
  transition: .25s ease;
}

.stage-card::after {
  content: "";
  position: absolute;
  right: -9px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(215, 162, 74, 0.15);
}

.stage-card:last-child::after {
  display: none;
}

.stage-card strong {
  display: block;
  font-size: 34px;
  color: var(--gold-soft);
}

.stage-card span {
  display: block;
  margin-top: 6px;
  font-weight: 700;
}

.stage-card small {
  display: block;
  margin-top: 12px;
  color: #b8ab96;
  line-height: 1.6;
}

.stage-card.active,
.stage-card.final,
.stage-card:hover {
  border-color: rgba(215, 162, 74, 0.45);
  transform: translateY(-2px);
  background: linear-gradient(180deg, rgba(69, 42, 8, 0.26), rgba(255,255,255,0.03));
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr) auto;
  gap: 12px;
  align-items: stretch;
}

.stat-box {
  border-radius: 18px;
  padding: 16px 18px;
}

.stat-box span {
  display: block;
  color: #bfae90;
  font-size: 13px;
}

.stat-box strong {
  display: block;
  margin-top: 8px;
  font-size: 28px;
  color: var(--gold-soft);
}

.cta-box {
  border-radius: 24px;
  padding: 28px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.cta-box h2 {
  margin: 0 0 8px;
  font-size: clamp(28px, 3vw, 46px);
  color: var(--gold-soft);
}

.cta-box p {
  margin: 0;
  color: #c8bba6;
}

.section-title {
  margin-bottom: 20px;
}

.section-title p {
  margin: 0 0 8px;
  color: var(--gold-soft);
  letter-spacing: 4px;
}

.section-title h2 {
  margin: 0;
  font-size: 40px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-list details {
  border-radius: 18px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  padding: 18px 20px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--gold-soft);
}

.faq-list p {
  margin: 14px 0 0;
  color: #cfbea3;
  line-height: 1.8;
}

@media (max-width: 1100px) {
  .nav {
    width: min(100%, calc(100% - 44px));
    min-height: 66px;
    gap: 12px;
  }

  .brand {
    gap: 10px;
  }

  .brand-logo-wrap {
    width: 38px;
    height: 38px;
    flex-basis: 38px;
  }

  .brand-logo {
    width: 38px;
    height: 38px;
    max-width: 38px;
    max-height: 38px;
  }

  .brand-text strong {
    font-size: 16px;
  }

  .brand-text span {
    font-size: 9px;
    letter-spacing: 2px;
  }

  .nav-links,
  .nav-actions {
    display: none;
  }

  .menu-btn {
    display: inline-grid;
    place-items: center;
    margin-left: auto;
  }

  .two-col {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .stage-line,
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-stage {
    min-height: auto;
  }

  .hero-safe {
    width: min(100%, calc(100% - 44px));
    min-height: auto;
    padding: 34px 0 22px;
    display: block;
  }

  .hero-copy {
    max-width: none;
  }

  .hero-copy h1 {
    white-space: normal;
    font-size: clamp(34px, 5.6vw, 52px);
    line-height: 1.14;
  }

  .hero-desc {
    max-width: 640px;
    font-size: 15px;
  }

  .hero-banner {
    max-width: 100%;
  }

  .hero-banner-title {
    white-space: normal;
    font-size: clamp(20px, 3vw, 26px);
  }

  .hero-product {
    position: relative;
    inset: auto;
    min-height: 340px;
    margin-top: 22px;
    pointer-events: auto;
  }

  .hero-visual-glow {
    right: 50%;
    top: 24px;
    transform: translateX(50%);
    width: 280px;
    height: 280px;
  }

  .hero-pack-image {
    right: 50%;
    top: 0;
    transform: translateX(50%);
    width: min(360px, 58vw);
    max-height: 420px;
  }

  .feature-grid {
    position: static;
    margin-top: 18px;
  }

  .feature-card {
    min-height: 110px;
    align-items: flex-start;
  }

  .stats-row .ghost-btn {
    grid-column: 1 / -1;
  }
}

@media (max-width: 700px) {
  .mobile-menu.show {
    display: flex;
  }

  .nav {
    width: min(100%, calc(100% - 32px));
    min-height: 60px;
  }

  .brand {
    gap: 8px;
    max-width: calc(100% - 54px);
  }

  .brand-logo-wrap {
    width: 34px;
    height: 34px;
    flex-basis: 34px;
  }

  .brand-logo {
    width: 34px;
    height: 34px;
    max-width: 34px;
    max-height: 34px;
  }

  .brand-text strong {
    font-size: 14px;
    line-height: 1.1;
  }

  .brand-text span {
    font-size: 8px;
    letter-spacing: 1.6px;
  }

  .hero-safe {
    width: min(100%, calc(100% - 32px));
    padding: 26px 0 18px;
  }

  .eyebrow {
    margin-bottom: 10px;
    letter-spacing: 5px;
    font-size: 11px;
  }

  .hero-copy h1 {
    font-size: clamp(26px, 9vw, 38px);
    line-height: 1.16;
  }

  .hero-desc {
    margin: 14px 0 12px;
    font-size: 14px;
    line-height: 1.7;
  }

  .hero-banner {
    padding: 12px 14px;
    border-radius: 14px;
  }

  .hero-banner-title {
    font-size: 19px;
    line-height: 1.35;
  }

  .hero-banner-sub {
    font-size: 14px;
    line-height: 1.6;
  }

  .hero-product {
    min-height: 250px;
    margin-top: 18px;
  }

  .hero-visual-glow {
    width: 210px;
    height: 210px;
  }

  .hero-pack-image {
    width: min(260px, 72vw);
    max-height: 300px;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .feature-card {
    gap: 10px;
    min-height: 96px;
    padding: 12px;
    border-radius: 14px;
  }

  .feature-icon {
    width: 28px;
    height: 28px;
    flex-basis: 28px;
  }

  .feature-card h3 {
    font-size: 15px;
    line-height: 1.35;
  }

  .feature-card p {
    font-size: 12px;
    line-height: 1.5;
  }

  .hero {
    padding: 18px 0 12px;
  }

  .hero-grid {
    min-height: auto;
    padding: 24px 22px 20px;
    background-position: 62% top;
  }

  .feature-grid,
  .stage-line,
  .stats-row {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    padding-right: 0;
  }

  .hero-copy h1 {
    max-width: none;
    font-size: 40px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .hero-product {
    min-height: 280px;
  }

  .hero-visual-glow {
    right: 50%;
    top: 30px;
    transform: translateX(50%);
    width: 240px;
    height: 240px;
  }

  .hero-pack-image {
    right: 50%;
    top: 0;
    transform: translateX(50%);
    width: min(320px, 84vw);
  }

  .hero-banner-title {
    font-size: 28px;
  }

  .pack-logo {
    font-size: 72px;
  }

  .pack-title {
    font-size: 24px;
  }

  .cta-box {
    flex-direction: column;
    align-items: flex-start;
  }
}