:root {
  --ink: #2a2118;
  --muted: #6a5744;
  --paper: #f7f1e6;
  --paper-2: #efe4d2;
  --amber: #b8860b;
  --honey: #c9944a;
  --honey-deep: #8a5a1f;
  --deep: #3d2a16;
  --line: rgba(138, 90, 31, 0.18);
  --shadow: 0 18px 42px rgba(61, 42, 22, 0.14);
  --radius-photo: 22px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1100px 520px at 8% -8%, rgba(201, 148, 74, 0.2), transparent 55%),
    radial-gradient(900px 480px at 100% 18%, rgba(138, 90, 31, 0.1), transparent 52%),
    linear-gradient(180deg, #fbf8f1 0%, var(--paper) 42%, #f1e7d8 100%);
  min-height: 100dvh;
  line-height: 1.75;
}

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

.top-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.78rem 1.05rem;
  backdrop-filter: blur(12px);
  background: rgba(251, 247, 239, 0.86);
  border-bottom: 1px solid var(--line);
}

.link-back {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  height: 2rem;
  padding: 0 0.7rem 0 0.45rem;
  border-radius: 999px;
  border: 1px solid rgba(180, 120, 40, 0.35);
  background: #fff;
  color: var(--honey-deep);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.8rem;
  white-space: nowrap;
}

.link-back-arrow {
  font-size: 0.95rem;
  line-height: 1;
}

.link-back:hover {
  border-color: rgba(180, 120, 40, 0.55);
  background: #fffaf0;
}

.top-mark {
  display: inline-flex;
  align-items: center;
  height: 2rem;
  padding: 0 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(180, 120, 40, 0.35);
  background: #fff;
  margin-left: auto;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--honey-deep);
  white-space: nowrap;
}

.hero {
  position: relative;
  min-height: min(92dvh, 820px);
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff8ee;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  transform: scale(1.03);
  animation: heroDrift 20s ease-in-out infinite alternate;
}

.hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(30, 18, 8, 0.12) 0%, rgba(30, 18, 8, 0.22) 38%, rgba(22, 12, 5, 0.82) 100%),
    radial-gradient(720px 360px at 72% 18%, rgba(201, 148, 74, 0.24), transparent 62%);
}

.hero-copy {
  position: relative;
  z-index: 1;
  padding: 2.4rem 1.25rem 2.8rem;
  max-width: 42rem;
  animation: riseIn 0.95s ease both;
}

.brand {
  font-family: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: clamp(2.7rem, 10vw, 4.4rem);
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.05;
  text-shadow: 0 10px 34px rgba(0, 0, 0, 0.38);
}

.hero h1 {
  margin-top: 0.75rem;
  font-size: clamp(1.18rem, 3.6vw, 1.6rem);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.lead {
  margin-top: 0.9rem;
  max-width: 28rem;
  color: rgba(255, 246, 230, 0.92);
  font-size: 1rem;
}

.hero-cta {
  display: inline-flex;
  margin-top: 1.45rem;
  padding: 0.78rem 1.35rem;
  border-radius: 999px;
  text-decoration: none;
  color: #3d2a16;
  font-weight: 700;
  background: linear-gradient(180deg, #f2d9a8, #c9944a);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.24);
  transition: transform 0.18s ease, filter 0.18s ease;
}

.hero-cta:hover { filter: brightness(1.04); }
.hero-cta:active { transform: scale(0.97); }

.block {
  padding: 2.8rem 0 0.4rem;
  position: relative;
}

.block > .block-inner {
  padding-left: 1.2rem;
  padding-right: 1.2rem;
  padding-bottom: 1.35rem;
}

.block-inner {
  max-width: 920px;
  margin: 0 auto;
}

.block-inner.narrow {
  max-width: 740px;
}

.tone-amber {
  background:
    linear-gradient(180deg, rgba(201, 148, 74, 0.14), rgba(201, 148, 74, 0.04));
  border-block: 1px solid var(--line);
}

.tone-deep {
  margin: 1.2rem 1rem 0;
  padding: 2.4rem 0 2rem;
  border-radius: 24px;
  background:
    radial-gradient(600px 240px at 20% 0%, rgba(226, 191, 132, 0.18), transparent 55%),
    linear-gradient(155deg, #52361a 0%, #2c1c0e 100%);
  color: #f8efe2;
  box-shadow: var(--shadow);
}

.tone-deep .eyebrow { color: #e2bf84; }
.tone-deep .intro,
.tone-deep p { color: rgba(248, 239, 226, 0.9); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  color: var(--honey-deep);
  margin-bottom: 0.65rem;
}

.eyebrow::before {
  content: "";
  width: 1.1rem;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--honey), transparent);
}

h2 {
  font-family: "Songti SC", "STSong", "Noto Serif SC", serif;
  font-size: clamp(1.58rem, 4.5vw, 2.1rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.28;
  margin-bottom: 0.95rem;
}

.copy p + p,
.intro + .tips,
.block p + p {
  margin-top: 0.9rem;
}

.copy p,
.intro,
.block p {
  color: var(--muted);
  font-size: 1.02rem;
}

.tone-amber .intro,
.tone-amber p {
  color: #5a4633;
}

.note {
  padding: 0.95rem 1.05rem;
  border-left: 3px solid var(--honey);
  background: linear-gradient(90deg, rgba(201, 148, 74, 0.14), rgba(201, 148, 74, 0.05));
  border-radius: 0 14px 14px 0;
  color: var(--ink) !important;
  font-size: 0.94rem !important;
}

/* 大图圆角画框 */
.photo {
  margin: 0 0.95rem 1.35rem;
  overflow: hidden;
  border-radius: var(--radius-photo);
  background: #1a120a;
  box-shadow: var(--shadow);
  border: 1px solid rgba(201, 148, 74, 0.28);
  animation: fadeUp 0.85s ease both;
}

.photo img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  background: #1a120a;
  image-rendering: auto;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.photo-full {
  width: auto;
  max-width: none;
}

.photo-full img {
  width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  background:
    radial-gradient(circle at 50% 20%, rgba(201, 148, 74, 0.12), transparent 55%),
    linear-gradient(180deg, #2c1d11, #18110a);
}

.photo figcaption {
  padding: 0.78rem 1.05rem 0.95rem;
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: linear-gradient(180deg, rgba(255, 252, 246, 0.98), rgba(247, 239, 226, 0.96));
  border-top: 1px solid rgba(201, 148, 74, 0.14);
}

.tone-amber .photo figcaption {
  background: linear-gradient(180deg, rgba(255, 250, 240, 0.98), rgba(248, 238, 220, 0.96));
}

.tips {
  list-style: none;
  display: grid;
  gap: 0.9rem;
  margin-top: 1.55rem;
}

.tips li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  padding: 1.05rem 1.1rem;
  border-radius: 16px;
  background: rgba(255, 252, 246, 0.9);
  border: 1px solid var(--line);
  box-shadow: 0 8px 20px rgba(138, 90, 31, 0.05);
}

.tip-num {
  font-family: "Songti SC", "STSong", serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--honey-deep);
  line-height: 1;
  padding-top: 0.12rem;
}

.tips h3 {
  font-size: 1.02rem;
  margin-bottom: 0.28rem;
  color: var(--ink);
}

.tips p {
  margin: 0;
  font-size: 0.95rem;
}

.chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1.25rem 0 1.45rem;
}

.chips li {
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  font-size: 0.86rem;
  color: #f8efe2;
  border: 1px solid rgba(226, 191, 132, 0.38);
  background: rgba(255, 255, 255, 0.07);
}

.meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin: 1.35rem 0 1.45rem;
}

.meta > div {
  padding: 0.9rem 0.95rem;
  border-radius: 14px;
  background: rgba(255, 252, 246, 0.82);
  border: 1px solid var(--line);
  box-shadow: 0 6px 16px rgba(138, 90, 31, 0.04);
}

.meta dt {
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--honey-deep);
  margin-bottom: 0.25rem;
}

.meta dd {
  color: var(--ink);
  font-size: 0.96rem;
}

.page-foot {
  padding: 2.2rem 1.15rem 2.8rem;
  text-align: center;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

.page-foot a {
  display: inline-flex;
  margin-top: 0.7rem;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  color: var(--honey-deep);
  font-weight: 700;
  text-decoration: none;
  border: 1px solid rgba(201, 148, 74, 0.35);
  background: linear-gradient(180deg, #fff9ef, #f3e2c4);
}

/* 底部购买引导（白底突出） */
.buy-banner {
  margin: 1.6rem 1rem 0.4rem;
  padding: 0.15rem;
  border-radius: 26px;
  background: linear-gradient(135deg, #f0d5a0, #c9944a 50%, #b8860b);
  box-shadow: 0 14px 32px rgba(138, 90, 31, 0.14);
  animation: fadeUp 0.9s ease both;
}

.buy-banner-inner {
  border-radius: 22px;
  padding: 1.55rem 1.2rem 1.45rem;
  text-align: center;
  background:
    radial-gradient(520px 180px at 50% 0%, rgba(255, 236, 200, 0.55), transparent 70%),
    linear-gradient(180deg, #ffffff 0%, #fffaf2 100%);
  color: var(--ink);
  border: 1px solid rgba(255, 255, 255, 0.7);
}

.buy-kicker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.55rem;
  padding: 0.22rem 0.7rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: #3d2a16;
  background: linear-gradient(180deg, #f4dfb0, #d4a85a);
}

.buy-title {
  margin: 0;
  font-family: "Songti SC", "STSong", "Noto Serif SC", serif;
  font-size: clamp(1.55rem, 5vw, 2rem);
  letter-spacing: 0.12em;
  color: var(--honey-deep);
  text-shadow: none;
}

.buy-lead {
  margin: 0.55rem 0 1rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.buy-id {
  appearance: none;
  width: min(100%, 22rem);
  margin: 0 auto;
  display: grid;
  gap: 0.2rem;
  justify-items: center;
  padding: 0.95rem 1rem 0.85rem;
  border: 1px solid rgba(201, 148, 74, 0.4);
  border-radius: 18px;
  cursor: pointer;
  color: inherit;
  background: linear-gradient(180deg, #fffdf8, #fff4e0);
  box-shadow: 0 8px 20px rgba(138, 90, 31, 0.08);
  transition: transform 0.15s ease, filter 0.15s ease, box-shadow 0.15s ease;
}

.buy-id:hover {
  filter: brightness(1.02);
  box-shadow: 0 12px 26px rgba(138, 90, 31, 0.14);
}

.buy-id:active {
  transform: scale(0.985);
}

.buy-id.is-copied {
  border-color: rgba(120, 170, 90, 0.55);
  box-shadow: 0 8px 20px rgba(90, 140, 70, 0.12);
}

.buy-id-label {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--muted);
}

.buy-id-num {
  width: 100%;
  border: 0;
  outline: none;
  background: transparent;
  text-align: center;
  font-size: clamp(1.55rem, 6.2vw, 2.05rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.15;
  color: #9a5c12;
  font-variant-numeric: tabular-nums;
  font-family: inherit;
  -webkit-user-select: text;
  user-select: text;
  caret-color: transparent;
}

.buy-id-hint {
  margin-top: 0.15rem;
  font-size: 0.78rem;
  color: #a08a6e;
}

.buy-id.is-copied .buy-id-hint {
  color: #4f8a3a;
}

.buy-name {
  margin: 0.95rem 0 0.25rem;
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--honey-deep);
}

.buy-note {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.douyin-share-token {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

@keyframes heroDrift {
  from { transform: scale(1.03) translate3d(0, 0, 0); }
  to { transform: scale(1.08) translate3d(-1.2%, -0.8%, 0); }
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 900px) {
  .photo {
    margin-left: max(1.2rem, calc((100% - 980px) / 2));
    margin-right: max(1.2rem, calc((100% - 980px) / 2));
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-media img,
  .hero-copy,
  .photo {
    animation: none;
  }
}