:root {
  --red-950: #340704;
  --red-900: #5a0907;
  --red-800: #7b0d0a;
  --red-700: #a71514;
  --gold-400: #d7a35b;
  --gold-300: #efcc86;
  --ink: #2c2018;
  --muted: #796455;
  --paper: #fff6e8;
  --paper-deep: #f4e4cf;
  --line: rgba(124, 72, 35, 0.2);
  --shadow: 0 18px 42px rgba(75, 39, 16, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif;
}

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

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

svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background:
    linear-gradient(90deg, rgba(52, 7, 4, 0.98), rgba(122, 13, 10, 0.98), rgba(55, 7, 4, 0.98)),
    var(--red-900);
  box-shadow: 0 8px 22px rgba(36, 5, 3, 0.28);
}

.header-inner,
.footer-inner,
.virtue-list,
.product-grid,
.video-layout,
.contact-panel {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.header-inner {
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--gold-300);
  white-space: nowrap;
}

.brand-mark {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 50%;
  box-shadow: inset 0 0 0 4px rgba(239, 204, 134, 0.18);
  font-size: 28px;
  font-weight: 900;
  line-height: 1;
}

.brand-name {
  display: block;
  font-size: 30px;
  font-weight: 900;
  line-height: 1.05;
}

.brand-en {
  display: block;
  margin-top: 4px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12px;
  line-height: 1;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(22px, 4vw, 68px);
  color: #ffe2b7;
  font-size: 18px;
  font-weight: 800;
}

.main-nav a {
  position: relative;
  min-height: 80px;
  display: inline-flex;
  align-items: center;
  opacity: 0.92;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 14px;
  width: 0;
  height: 2px;
  background: var(--gold-300);
  transform: translateX(-50%);
  transition: width 160ms ease;
}

.main-nav a:hover::after,
.main-nav .active::after {
  width: 34px;
}

.hero {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  background: #e7c99a;
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(247, 222, 182, 0.28), rgba(247, 222, 182, 0.04) 45%, rgba(46, 18, 8, 0.12)),
    linear-gradient(180deg, transparent 68%, rgba(30, 13, 8, 0.3));
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100% - 40px));
  min-height: 560px;
  margin: 0 auto;
  padding: 84px 0 76px;
}

.hero-badge {
  width: fit-content;
  margin: 0 0 238px 118px;
  padding: 9px 28px;
  color: #5a110b;
  border: 1px solid rgba(95, 19, 12, 0.7);
  border-radius: 6px;
  background: rgba(255, 235, 196, 0.64);
  box-shadow: inset 0 0 0 1px rgba(255, 247, 224, 0.8);
  font-size: 18px;
  font-weight: 900;
}

.hero-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-width: 238px;
  height: 58px;
  margin-left: 116px;
  border: 2px solid #c43a2c;
  border-radius: 8px;
  color: #fff4d2;
  background: linear-gradient(180deg, #b81716, #850d0a);
  box-shadow: 0 12px 28px rgba(111, 14, 11, 0.28), inset 0 0 0 1px rgba(255, 220, 142, 0.36);
  font-size: 20px;
  font-weight: 900;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.hero-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 17px 34px rgba(111, 14, 11, 0.34);
}

.virtues {
  background:
    linear-gradient(90deg, #17100c, #322015 48%, #17100c);
  color: #f1d19d;
}

.virtue-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  padding: 18px 0;
}

.virtue {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-width: 0;
}

.virtue-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--gold-300);
  border-radius: 50%;
}

.virtue h2,
.virtue p {
  margin: 0;
}

.virtue h2 {
  font-size: 18px;
  line-height: 1.35;
}

.virtue p {
  margin-top: 3px;
  color: rgba(241, 209, 157, 0.82);
  font-size: 14px;
}

.section {
  position: relative;
  overflow: hidden;
  padding: 58px 0 64px;
  background:
    radial-gradient(circle at 92% 20%, rgba(166, 20, 18, 0.06), transparent 18rem),
    radial-gradient(circle at 8% 18%, rgba(214, 163, 91, 0.14), transparent 20rem),
    linear-gradient(180deg, #fff9ef, var(--paper-deep));
}

.section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, transparent 0 58%, rgba(112, 77, 43, 0.04) 58% 58.4%, transparent 58.4%),
    radial-gradient(ellipse at 82% 60%, rgba(78, 51, 31, 0.08), transparent 18rem);
  pointer-events: none;
}

.section::after {
  content: "山水";
  position: absolute;
  right: 5%;
  top: 45px;
  color: rgba(77, 48, 27, 0.055);
  font-size: clamp(92px, 13vw, 190px);
  font-weight: 900;
  writing-mode: vertical-rl;
  pointer-events: none;
}

.section-heading {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 34px;
}

.section-heading span {
  width: min(118px, 18vw);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(111, 66, 35, 0.45), transparent);
}

.section-heading h2 {
  margin: 0;
  color: #312117;
  font-size: clamp(30px, 3vw, 42px);
  font-weight: 900;
  line-height: 1;
}

.product-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.product-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 251, 242, 0.96);
  box-shadow: 0 12px 26px rgba(83, 45, 18, 0.12);
}

.product-card img {
  width: 100%;
  aspect-ratio: 4 / 3.3;
  object-fit: cover;
}

.product-card:first-child img {
  object-position: 64% 54%;
}

.product-copy {
  min-height: 92px;
  padding: 17px 12px 18px;
  text-align: center;
}

.product-copy h3 {
  margin: 0 0 8px;
  color: #3c281d;
  font-size: 19px;
  line-height: 1.2;
}

.product-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.45;
}

.video-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(290px, 0.9fr);
  align-items: center;
  gap: 40px;
}

.video-frame {
  position: relative;
  min-height: 332px;
  overflow: hidden;
  border: 1px solid rgba(109, 62, 28, 0.28);
  border-radius: 8px;
  background: #22130c;
  box-shadow: var(--shadow);
}

.video-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 45%;
}

.video-gradient {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(59, 22, 11, 0.02), rgba(8, 6, 5, 0.58)),
    linear-gradient(90deg, rgba(42, 20, 12, 0.22), transparent 62%);
}

.video-title {
  position: absolute;
  top: 66px;
  left: 0;
  right: 0;
  color: #2d130a;
  text-align: center;
  text-shadow: 0 2px 6px rgba(255, 222, 164, 0.7);
  font-size: clamp(30px, 3.5vw, 48px);
  font-weight: 900;
}

.play-button {
  position: absolute;
  left: 50%;
  top: 51%;
  width: 92px;
  height: 92px;
  display: grid;
  place-items: center;
  border: 3px solid rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  background: rgba(75, 35, 18, 0.42);
  transform: translate(-50%, -50%);
  cursor: pointer;
}

.play-button span {
  width: 0;
  height: 0;
  margin-left: 7px;
  border-top: 18px solid transparent;
  border-bottom: 18px solid transparent;
  border-left: 28px solid #fff;
}

.player-bar {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 17px;
  display: grid;
  grid-template-columns: 18px 18px auto 1fr 18px 18px;
  align-items: center;
  gap: 13px;
  color: #fff;
  font: 13px Georgia, "Times New Roman", serif;
}

.player-bar::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -13px;
  height: 2px;
  background: linear-gradient(90deg, #fff 0 12%, rgba(255, 255, 255, 0.56) 12% 100%);
}

.player-control {
  width: 16px;
  height: 16px;
  display: inline-block;
  border: 2px solid currentColor;
  border-radius: 50%;
}

.player-control.small {
  width: 13px;
  height: 13px;
}

.player-control.square {
  border-radius: 2px;
}

.progress i {
  display: block;
}

.story-copy h2 {
  margin: 0 0 18px;
  color: #33231a;
  font-size: clamp(28px, 2.9vw, 40px);
  line-height: 1.24;
}

.story-copy p {
  margin: 0 0 12px;
  color: #6d584a;
  font-size: 18px;
  line-height: 1.85;
}

.story-copy a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-width: 232px;
  height: 48px;
  margin-top: 14px;
  border: 2px solid #a71514;
  border-radius: 5px;
  color: #a71514;
  background: rgba(255, 249, 237, 0.6);
  font-size: 17px;
  font-weight: 900;
}

.contact-panel {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 0.95fr 1.35fr;
  gap: 42px;
  padding: 34px 42px;
  border: 1px solid rgba(136, 80, 42, 0.24);
  border-radius: 8px;
  background:
    radial-gradient(circle at 93% 72%, rgba(161, 20, 17, 0.07), transparent 13rem),
    rgba(255, 251, 243, 0.95);
  box-shadow: var(--shadow);
}

.contact-info {
  display: grid;
  gap: 17px;
  margin: 0;
  padding-right: 32px;
  border-right: 1px solid rgba(129, 78, 44, 0.22);
  font-style: normal;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  color: #fff5dc;
  background: linear-gradient(180deg, #b61a18, #82100e);
}

.contact-row strong,
.contact-row p,
.contact-row small {
  display: block;
  margin: 0;
}

.contact-row strong {
  color: #543427;
  font-size: 15px;
}

.contact-row p {
  margin-top: 2px;
  color: #302018;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.32;
}

.contact-row small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 13px;
}

.message-form {
  display: grid;
  gap: 12px;
}

.message-form h3 {
  margin: 0;
  color: #3a251a;
  font-size: 23px;
}

.message-form p {
  margin: 0 0 5px;
  color: #776254;
  font-size: 15px;
  line-height: 1.6;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(119, 71, 37, 0.28);
  border-radius: 5px;
  background: rgba(255, 252, 246, 0.78);
  color: #39281f;
  font: 16px/1.45 "Songti SC", "STSong", serif;
  outline: none;
}

input {
  height: 42px;
  padding: 0 14px;
}

textarea {
  min-height: 82px;
  padding: 11px 14px;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: rgba(167, 21, 20, 0.62);
  box-shadow: 0 0 0 3px rgba(167, 21, 20, 0.08);
}

.message-form button {
  height: 48px;
  border: 0;
  border-radius: 5px;
  color: #fff4d5;
  background: linear-gradient(180deg, #b41614, #8a0d0b);
  font: 900 18px/1 "Songti SC", "STSong", serif;
  cursor: pointer;
}

.site-footer {
  padding: 30px 0;
  color: #d8b979;
  background: linear-gradient(90deg, #120b08, #2f190f 50%, #120b08);
}

.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 30px 44px;
}

.footer-brand .brand-mark {
  width: 58px;
  height: 58px;
}

.footer-links,
.copyright {
  grid-column: 2;
  justify-self: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  font-size: 16px;
  font-weight: 800;
}

.copyright {
  margin: 0;
  color: rgba(216, 185, 121, 0.7);
  font-size: 12px;
}

.qr-wrap {
  grid-column: 3;
  grid-row: 1 / span 2;
  display: flex;
  align-items: center;
  gap: 14px;
}

.fake-qr {
  width: 74px;
  height: 74px;
  display: block;
  border: 5px solid #f8ead1;
  background:
    linear-gradient(90deg, #17110d 7px, transparent 7px) 0 0 / 14px 14px,
    linear-gradient(#17110d 7px, transparent 7px) 0 0 / 14px 14px,
    #f8ead1;
}

.qr-wrap p {
  margin: 0;
  color: rgba(216, 185, 121, 0.86);
  font-size: 14px;
  line-height: 1.65;
}

@media (max-width: 980px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 0 0;
  }

  .main-nav {
    width: 100%;
    overflow-x: auto;
    gap: 30px;
    font-size: 16px;
  }

  .main-nav a {
    min-height: 46px;
  }

  .main-nav a::after {
    bottom: 5px;
  }

  .hero,
  .hero-content {
    min-height: 590px;
  }

  .hero-image {
    object-position: 59% center;
  }

  .hero-badge,
  .hero-button {
    margin-left: 0;
  }

  .hero-badge {
    margin-bottom: 250px;
  }

  .virtue-list,
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .video-layout,
  .contact-panel,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .contact-info {
    padding-right: 0;
    padding-bottom: 26px;
    border-right: 0;
    border-bottom: 1px solid rgba(129, 78, 44, 0.22);
  }

  .footer-links,
  .copyright,
  .qr-wrap {
    grid-column: auto;
    grid-row: auto;
    justify-self: start;
  }
}

@media (max-width: 640px) {
  .header-inner,
  .hero-content,
  .virtue-list,
  .product-grid,
  .video-layout,
  .contact-panel,
  .footer-inner {
    width: min(100% - 28px, 1180px);
  }

  .brand-mark {
    width: 48px;
    height: 48px;
    font-size: 23px;
  }

  .brand-name {
    font-size: 24px;
  }

  .main-nav {
    gap: 24px;
  }

  .hero,
  .hero-content {
    min-height: 565px;
  }

  .hero-image {
    object-position: 66% center;
  }

  .hero-shade {
    background:
      linear-gradient(180deg, rgba(248, 226, 190, 0.45), rgba(248, 226, 190, 0.05) 48%, rgba(37, 15, 8, 0.34)),
      linear-gradient(90deg, rgba(248, 226, 190, 0.32), transparent 60%);
  }

  .hero-content {
    padding-top: 42px;
  }

  .hero-badge {
    margin-bottom: 280px;
    font-size: 16px;
  }

  .hero-button {
    min-width: 210px;
    height: 54px;
    font-size: 18px;
  }

  .virtue-list,
  .product-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .virtue {
    justify-content: flex-start;
  }

  .section {
    padding: 44px 0 50px;
  }

  .section-heading {
    gap: 14px;
  }

  .product-card img {
    aspect-ratio: 4 / 3;
  }

  .video-frame {
    min-height: 270px;
  }

  .video-title {
    top: 48px;
  }

  .play-button {
    width: 76px;
    height: 76px;
  }

  .player-bar {
    grid-template-columns: 16px auto 1fr 16px;
  }

  .player-control.small,
  .player-control.square {
    display: none;
  }

  .contact-panel {
    padding: 26px 20px;
  }
}