/* ChristmasLens —「圣诞夜桌面上的一封信」
   夜绿是房间，象牙是信纸，烫金是烛光；全站红色只出现一次（火漆红 CTA 悬态/邮戳带）。
   反默认款自查（frontend-design skill）：无 cream+terracotta、无 ALL-CAPS eyebrow、
   无中点串、无 → 尾巴、无假序列号。tokens 先行，改视觉只改 :root（docs/21 Gate 1）。 */

@font-face {
  font-family: "Fraunces";
  src: url("/fonts/fraunces-500.woff2") format("woff2");
  font-weight: 400 600;
  font-display: swap;
}
@font-face {
  font-family: "Fraunces";
  src: url("/fonts/fraunces-650.woff2") format("woff2");
  font-weight: 650 900;
  font-display: swap;
}
@font-face {
  font-family: "Caveat";
  src: url("/fonts/caveat-500.woff2") format("woff2");
  font-weight: 400 600;
  font-display: swap;
}
@font-face {
  font-family: "Caveat";
  src: url("/fonts/caveat-700.woff2") format("woff2");
  font-weight: 700 900;
  font-display: swap;
}

:root {
  --night: #142A21;        /* 房间：深松夜绿（页面底色） */
  --night-deep: #0E1F18;   /* 更深一档：页脚 */
  --ivory: #F3EDDF;        /* 信纸：主文字/纸元素 */
  --ivory-dim: #C9C3B2;    /* 次级文字（夜绿上的 muted） */
  --paper: #FBF8F1;        /* 相纸白（样片白边） */
  --gold: #C9A24E;         /* 烛光：主强调 */
  --gold-soft: rgba(201, 162, 78, 0.38);  /* 金发丝线 */
  --gold-dim: #8F7436;
  --berry: #8E362B;        /* 冬浆果：全站唯一的红 */
  --ink-on-paper: #22352B; /* 纸面上的墨 */
  --muted-on-paper: #6E7A6E;
  --serif: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --hand: "Caveat", cursive;
  --wrap: 1060px;
  --radius: 6px;
  --shadow-deep: 0 2px 6px rgba(0, 0, 0, 0.35), 0 24px 60px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--night);
  color: var(--ivory);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.68;
  min-height: 100vh;
}
h1, h2, h3 { font-family: var(--serif); color: var(--ivory); font-weight: 650; letter-spacing: -0.01em; }
h1 { font-size: clamp(36px, 5.4vw, 62px); line-height: 1.04; margin: 14px 0 18px; }
h2 { font-size: clamp(24px, 3vw, 33px); line-height: 1.16; margin: 0 0 12px; }
h3 { font-size: 19px; margin: 0 0 8px; }
p { margin: 0 0 14px; }
a { color: var(--gold); }
img, video { max-width: 100%; }
img { height: auto; }
section { padding: 60px 24px; }
@media (min-width: 900px) { section { padding: 76px 24px; } }

/* kicker：Fraunces italic 引语（替代 ALL-CAPS eyebrow——反默认款） */
.kicker {
  font-family: var(--serif); font-style: italic; font-weight: 500;
  font-size: 19px; color: var(--gold); margin: 0 0 6px; letter-spacing: 0;
}
.sec-head { max-width: var(--wrap); margin: 0 auto 34px; }
.sec-head p { color: var(--ivory-dim); max-width: 60ch; margin: 0; }

/* ── 按钮：金描边为主，火漆红只在主 CTA 悬停态一现 ── */
.cta {
  display: inline-block; background: var(--gold); color: #1B1710; text-decoration: none;
  font-weight: 700; font-size: 15.5px; padding: 14px 28px; border-radius: 4px;
  border: 1px solid var(--gold);
  transition: background 0.15s, color 0.15s, transform 0.12s;
}
.cta:hover { background: var(--berry); border-color: var(--berry); color: var(--ivory); transform: translateY(-1px); }
.ghost {
  display: inline-block; background: transparent; color: var(--ivory); text-decoration: none;
  font-weight: 600; font-size: 15px; padding: 13px 24px; border-radius: 4px;
  border: 1px solid var(--gold-soft); transition: border-color 0.15s, background 0.15s;
}
.ghost:hover { border-color: var(--gold); background: rgba(201, 162, 78, 0.08); }

/* ── 顶栏：夜绿磨砂 + 金发丝底线 ── */
.topbar {
  position: sticky; top: 0; z-index: 40; display: flex; align-items: center; justify-content: space-between;
  padding: 14px 28px; background: rgba(20, 42, 33, 0.88); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gold-soft);
}
.wordmark {
  display: inline-flex; align-items: center; gap: 9px; font-family: var(--serif); font-weight: 650;
  font-size: 19px; color: var(--ivory); text-decoration: none;
}
.topbar .mark { display: inline-flex; }
.topbar nav { display: flex; align-items: center; gap: 26px; }
.topbar nav a { color: var(--ivory-dim); text-decoration: none; font-size: 14.5px; font-weight: 600; }
.topbar nav a:not(.nav-cta):hover { color: var(--gold); }
.topbar .nav-cta {
  background: var(--gold); color: #1B1710; padding: 10px 18px; border-radius: 4px; font-weight: 700;
  border: 1px solid var(--gold);
}
.topbar .nav-cta:hover { background: var(--berry); border-color: var(--berry); color: var(--ivory); }
@media (max-width: 760px) {
  .topbar { padding: 12px 18px; }
  .topbar nav a:not(.nav-cta) { display: none; }
}

/* ── Hero：居中单列——引语、标题、一行副文、CTA，然后是一张斜放的贺卡 ──
   全站的 boldness 花在贺卡与邮戳章上，文字区保持安静。 */
.hero {
  max-width: 780px; margin: 0 auto; text-align: center;
  padding-top: 72px; padding-bottom: 30px;
}
.hero .sub { font-size: 17.5px; color: var(--ivory-dim); max-width: 52ch; margin: 0 auto; }
.hero .actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin: 26px 0 12px; }
.hero .fineprint { color: var(--ivory-dim); font-size: 13.5px; opacity: 0.8; }

/* 贺卡台：白边相纸 + 金细框 + settle 入场（全站唯一动效） */
.hero-plate { position: relative; max-width: 460px; margin: 40px auto 0; }
.plate {
  position: relative; margin: 0; background: var(--paper); border-radius: 3px;
  padding: 12px 12px 10px; transform: rotate(-1.1deg);
  box-shadow: var(--shadow-deep);
  border: 1px solid rgba(255, 255, 255, 0.14);
  animation: settle 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes settle {
  from { transform: rotate(1.6deg) translateY(14px); opacity: 0; }
  to { transform: rotate(-1.1deg) translateY(0); opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .plate { animation: none; }
}
.plate img, .plate video { display: block; width: 100%; border-radius: 2px; background: var(--night-deep); }
.plate figcaption { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding-top: 10px; }
.plate .cap-style { font-family: var(--serif); font-weight: 650; font-size: 15px; color: var(--ink-on-paper); white-space: nowrap; }
.plate .plate-note { font-family: var(--hand); font-size: 18px; color: var(--muted-on-paper); }

/* 邮戳章：双圈金边、微旋转、压在相纸角上——价格的安放处 */
.postmark {
  position: absolute; top: -30px; right: 16px; z-index: 2;
  width: 108px; height: 108px; border-radius: 50%;
  border: 1.5px solid var(--gold); display: grid; place-items: center;
  transform: rotate(9deg);
  background: radial-gradient(circle, rgba(20, 42, 33, 0.92) 62%, rgba(20, 42, 33, 0.78) 100%);
  box-shadow: 0 0 0 5px rgba(20, 42, 33, 0.55), var(--shadow-deep);
}
.postmark::before {
  content: ""; position: absolute; inset: 7px; border-radius: 50%;
  border: 1px dashed var(--gold-soft);
}
.postmark .pm-price { font-family: var(--serif); font-weight: 650; font-size: 27px; color: var(--gold); line-height: 1; }
.postmark .pm-note { font-size: 8.5px; font-weight: 700; letter-spacing: 0.14em; color: var(--ivory-dim); margin-top: 4px; }

/* ── 信任行：一行安静的小字，不排队不戴徽章 ── */
.tag-row {
  max-width: 780px; margin: 0 auto; padding: 26px 24px 0; text-align: center;
  color: var(--ivory-dim); font-size: 13.5px;
}
.tag-row span { padding: 0 14px; border-right: 1px solid var(--gold-soft); }
.tag-row span:first-child { border-left: 1px solid var(--gold-soft); }
@media (max-width: 700px) {
  .tag-row span { border: none; display: inline-block; padding: 2px 10px; }
}

/* ── 实证区：同一张照片的三种圣诞——相纸白与夜绿强对比 ── */
.pairs {
  max-width: var(--wrap); margin: 0 auto; display: grid; grid-auto-flow: column; grid-auto-columns: minmax(330px, 400px);
  gap: 26px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 4px 24px 22px;
}
.pair {
  margin: 0; scroll-snap-align: start; background: var(--paper); border-radius: 3px;
  padding: 14px; box-shadow: var(--shadow-deep);
}
.pair:nth-child(odd) { transform: rotate(-0.5deg); }
.pair:nth-child(even) { transform: rotate(0.5deg); }
.pair-frames { display: grid; grid-template-columns: 1fr 20px 1fr; gap: 8px; align-items: center; margin: 8px 0; }
.pair-frames .ph img { display: block; width: 100%; border-radius: 2px; background: var(--night-deep); }
.pair-arrow { text-align: center; color: var(--gold-dim); font-weight: 700; }
.pair figcaption { font-size: 13.5px; color: var(--muted-on-paper); padding-top: 4px; }
.pair figcaption b { display: block; color: var(--ink-on-paper); font-family: var(--serif); font-size: 15.5px; }

/* ── 报价：夜绿桌上的一张象牙便签（替代渐变黑幅——反默认款） ── */
.offer {
  max-width: 860px; margin: 8px auto 0; border-radius: 4px; padding: 46px 48px;
  background: var(--paper); color: var(--ink-on-paper);
  display: grid; grid-template-columns: 1.35fr 1fr; gap: 40px; align-items: center;
  box-shadow: var(--shadow-deep); transform: rotate(-0.35deg);
}
.offer h2 { color: var(--ink-on-paper); margin-bottom: 10px; }
.offer p { color: var(--muted-on-paper); max-width: 56ch; margin: 0; }
.offer p b { color: var(--ink-on-paper); }
.offer-price { text-align: center; }
.offer-amount { font-family: var(--serif); font-size: 46px; font-weight: 650; color: var(--berry); line-height: 1; }
.offer-terms { font-size: 13px; color: var(--muted-on-paper); margin: 10px 0 18px; }
.offer .cta { width: 100%; }
@media (max-width: 760px) { .offer { grid-template-columns: 1fr; } }

/* ── 两步：金发丝线 + 金色衬线数字 ── */
.steps { max-width: var(--wrap); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px; }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
.step { border-top: 1px solid var(--gold-soft); padding-top: 20px; }
.step .no { font-family: var(--serif); font-size: 40px; font-weight: 650; color: var(--gold); line-height: 1; display: block; margin-bottom: 12px; }
.step h3 { color: var(--ivory); }
.step p { color: var(--ivory-dim); font-size: 15px; margin: 0; }
.step p b { color: var(--ivory); }

/* ── 承诺双栏 ── */
.promises { max-width: var(--wrap); margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 34px; }
@media (max-width: 800px) { .promises { grid-template-columns: 1fr; } }
.promise { border-top: 1px solid var(--gold-soft); padding-top: 22px; display: flex; gap: 16px; align-items: flex-start; }
.promise .ico { flex: 0 0 auto; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--gold-soft); display: grid; place-items: center; }
.promise .ico svg { width: 21px; height: 21px; }
.promise h2 { font-size: 20px; margin: 0 0 8px; }
.promise p { color: var(--ivory-dim); font-size: 15px; }
.promise a { color: var(--gold); }

/* ── FAQ：金发丝线手风琴 ── */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { border-top: 1px solid var(--gold-soft); padding: 4px 0; }
.faq details:last-of-type { border-bottom: 1px solid var(--gold-soft); }
.faq summary {
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
  font-family: var(--serif); font-weight: 650; font-size: 18px; color: var(--ivory); padding: 14px 4px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--gold); font-size: 22px; font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--ivory-dim); padding: 0 4px 14px; margin: 0; max-width: 64ch; }
.faq details p a { color: var(--gold); }

/* ── 尾部 CTA：一圈金细框，像信封上的地址框 ── */
.cta-band {
  max-width: 860px; margin: 8px auto 72px; padding: 48px 40px; text-align: center;
  border: 1px solid var(--gold-soft); border-radius: 4px;
}
.cta-band h2 { margin-bottom: 8px; }
.cta-band p { color: var(--ivory-dim); max-width: 54ch; margin: 0 auto 22px; }

/* ── 页脚 ── */
.site-footer { border-top: 1px solid var(--gold-soft); background: var(--night-deep); margin-top: 24px; }
.site-footer .cols {
  max-width: var(--wrap); margin: 0 auto; padding: 46px 24px 12px;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px;
}
@media (max-width: 800px) { .site-footer .cols { grid-template-columns: 1fr; } }
.site-footer .blurb { color: var(--ivory-dim); font-size: 14px; max-width: 34ch; }
.site-footer .wordmark { font-family: var(--serif); font-weight: 650; font-size: 18px; color: var(--ivory); text-decoration: none; }
.site-footer .foot-head { font-family: var(--serif); font-style: italic; font-size: 14.5px; color: var(--gold); margin: 0 0 12px; }
.site-footer a { display: block; color: var(--ivory-dim); text-decoration: none; font-size: 14.5px; padding: 4px 0; }
.site-footer a:hover { color: var(--gold); }
.site-footer .legal { text-align: center; color: var(--ivory-dim); font-size: 13px; padding: 18px 0 26px; opacity: 0.75; }

/* ── 文章页：夜绿纸面直接排，无盒子 ── */
.crumbs { max-width: var(--wrap); margin: 0 auto; padding: 26px 24px 0; color: var(--ivory-dim); font-size: 13.5px; }
.crumbs a { color: var(--ivory-dim); text-decoration: none; }
.crumbs a:hover { color: var(--gold); }
.article {
  max-width: var(--wrap); margin: 0 auto; padding: 10px 24px 30px;
  display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 48px; align-items: start;
}
@media (max-width: 900px) { .article { grid-template-columns: 1fr; } }
.prose { max-width: 68ch; }
.prose h1 { margin-top: 8px; }
.prose .sub { color: var(--ivory-dim); font-size: 17px; }
.prose .sec { border-top: 1px solid var(--gold-soft); margin-top: 30px; padding-top: 24px; }
.prose .sec h2 { font-size: 24px; margin: 0 0 12px; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.prose .sec p { color: var(--ivory); opacity: 0.92; }
.method-tag {
  font-family: var(--sans); font-style: normal; font-size: 11.5px; font-weight: 700; letter-spacing: 0.07em;
  color: var(--gold); border: 1px solid var(--gold-soft); border-radius: 3px; padding: 3px 10px; white-space: nowrap;
}
.prose .faq h2 { font-size: 24px; }

/* 嵌入样片 = 相纸图版 */
.page-sample { margin: 26px 0 10px; background: var(--paper); border-radius: 3px; padding: 14px; box-shadow: var(--shadow-deep); }
.page-sample .plate-tag { font-family: var(--serif); font-style: italic; font-size: 14px; color: var(--gold-dim); margin-bottom: 10px; }
.page-sample img { width: 100%; display: block; border-radius: 2px; background: var(--night-deep); }
.page-sample figcaption { font-family: var(--hand); color: var(--ink-on-paper); font-size: 18px; margin-top: 10px; text-align: center; }

/* 侧栏：象牙价签 */
.rail { position: sticky; top: 84px; display: grid; gap: 18px; }
.rail .card {
  background: var(--paper); border-radius: 4px; padding: 22px; text-align: center;
  box-shadow: var(--shadow-deep);
}
.rail .card .price { font-family: var(--serif); font-size: 30px; color: var(--ink-on-paper); font-weight: 650; line-height: 1.15; }
.rail .card .per { color: var(--muted-on-paper); font-size: 13px; margin: 8px 0 14px; }
.rail .card .cta { width: 100%; }
.rail .card .fineprint { margin-top: 12px; color: var(--muted-on-paper); }
.rail .card.links { text-align: left; }
.rail .links { font-size: 14px; }
.rail .links h3 { font-family: var(--serif); font-style: italic; font-weight: 500; font-size: 15px; color: var(--gold-dim); }
.rail .links a { display: block; padding: 7px 0; text-decoration: none; border-bottom: 1px dashed var(--gold-soft); color: var(--ink-on-paper); }
.rail .links a:hover { color: var(--berry); }

/* ── 向导（create）── */
.create { max-width: 760px; margin: 0 auto; }
.wiz-nav { list-style: none; display: flex; gap: 30px; padding: 0; margin: 22px 0 30px; }
.wiz-nav li { display: flex; align-items: center; gap: 10px; color: var(--ivory-dim); font-size: 14.5px; font-weight: 600; }
.wiz-nav li span {
  width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--gold-soft);
  display: grid; place-items: center; font-family: var(--serif); font-size: 15px;
}
.wiz-nav li.on { color: var(--ivory); }
.wiz-nav li.on span { border-color: var(--gold); color: var(--gold); }
.wiz-nav li.done span { background: var(--gold); border-color: var(--gold); color: #1B1710; }
.wiz-step h2 { margin-bottom: 6px; }
.wiz-sub { color: var(--ivory-dim); margin: 0 0 18px; }
.file-drop {
  display: grid; place-items: center; gap: 6px; cursor: pointer; text-align: center;
  border: 1.5px dashed var(--gold-soft); border-radius: 4px; padding: 44px 20px;
  transition: border-color 0.15s, background 0.15s;
}
.file-drop:hover, .file-drop.has-file { border-color: var(--gold); background: rgba(201, 162, 78, 0.06); }
.fd-title { font-family: var(--serif); font-weight: 650; font-size: 17px; color: var(--ivory); }
.fd-sub { font-size: 13px; color: var(--ivory-dim); }
#preview { max-width: 260px; border-radius: 3px; margin-top: 16px; border: 4px solid var(--paper); box-shadow: var(--shadow-deep); }
.wiz-actions { display: flex; gap: 12px; margin-top: 22px; }
.style-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 6px 0 20px; }
@media (max-width: 720px) { .style-grid { grid-template-columns: 1fr; } }
.style-pick {
  position: relative; background: var(--paper); border: none; border-radius: 3px; padding: 10px;
  text-align: left; cursor: pointer; font-family: var(--sans); box-shadow: var(--shadow-deep);
}
.style-static { cursor: default; }
.style-pick img, .style-pick video { display: block; width: 100%; border-radius: 2px; background: var(--night-deep); }
.sp-tag {
  position: absolute; top: 16px; left: 16px; font-family: var(--hand); font-size: 15px;
  color: var(--ink-on-paper); background: rgba(251, 248, 241, 0.85); border-radius: 3px; padding: 1px 8px;
}
.sp-name { display: block; font-family: var(--serif); font-weight: 650; font-size: 15.5px; color: var(--ink-on-paper); padding-top: 9px; }
.sp-desc { display: block; font-size: 12.5px; color: var(--muted-on-paper); padding-top: 2px; }
.wallet-line { color: var(--ivory-dim); font-size: 14.5px; margin-bottom: 14px; }
.render-grid { display: grid; gap: 12px; margin: 8px 0 6px; }
.render-pick {
  display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 14px;
  background: var(--paper); border-radius: 4px; padding: 16px 18px; cursor: pointer;
  box-shadow: var(--shadow-deep);
}
.rp-count { font-family: var(--serif); font-weight: 650; font-size: 16.5px; color: var(--ink-on-paper); }
.rp-note { font-size: 12.5px; color: var(--muted-on-paper); }
.rp-price { font-family: var(--serif); font-weight: 650; font-size: 19px; color: var(--berry); }
.summary { color: var(--ivory-dim); font-size: 14px; margin: 12px 0; }
.summary .sum-file { color: var(--gold); }
.status { color: var(--gold); font-size: 15px; }
.status.err { color: #D08770; }

/* ── 结果页 ── */
.result { max-width: 860px; margin: 0 auto; text-align: center; }
.result .take-hint { color: var(--ivory-dim); }
.takes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 26px 0; }
@media (max-width: 760px) { .takes { grid-template-columns: 1fr; } }
.take { margin: 0; background: var(--paper); border-radius: 3px; padding: 10px; box-shadow: var(--shadow-deep); }
.take img, .take video { display: block; width: 100%; border-radius: 2px; background: var(--night-deep); }
.take figcaption { display: flex; justify-content: space-between; align-items: center; padding-top: 9px; }
.take figcaption b { font-family: var(--serif); font-size: 14.5px; color: var(--ink-on-paper); }
.take figcaption a { font-size: 13px; color: var(--berry); font-weight: 700; text-decoration: none; }
.share { display: inline-block; margin-top: 6px; }
.fineprint { color: var(--ivory-dim); font-size: 13px; }

/* ── Examples 画廊 ── */
.gallery {
  max-width: var(--wrap); margin: 0 auto; display: grid; grid-auto-flow: column; grid-auto-columns: minmax(300px, 380px);
  gap: 26px; overflow-x: auto; padding: 4px 24px 18px; scroll-snap-type: x mandatory;
}
.gallery figure { margin: 0; scroll-snap-align: start; background: var(--paper); border-radius: 3px; padding: 12px; box-shadow: var(--shadow-deep); }
.gallery img { display: block; width: 100%; border-radius: 2px; }
.gallery figcaption { font-size: 13.5px; color: var(--muted-on-paper); padding-top: 8px; }
.gallery figcaption b { font-family: var(--serif); color: var(--ink-on-paper); display: block; font-size: 15px; }
.scroll-hint { text-align: center; color: var(--ivory-dim); font-size: 13px; }

/* ── 对比表（kling 页等通用表格）── */
.compare-wrap { background: var(--paper); border-radius: 4px; box-shadow: var(--shadow-deep); overflow-x: auto; margin: 6px 0 10px; }
table.compare { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 0; color: var(--ink-on-paper); }
table.compare th, table.compare td { padding: 11px 14px; text-align: left; border-bottom: 1px solid rgba(31, 58, 45, 0.12); vertical-align: top; }
table.compare thead th { font-family: var(--serif); font-size: 15px; }
table.compare tbody th { font-weight: 600; color: var(--muted-on-paper); white-space: nowrap; }

.how { max-width: var(--wrap); margin: 0 auto; }
.how .steps { margin-top: 10px; }