/* ============================================================
   东吴摄影 · Light & Shadow — 全站设计系统
   优雅 /  editorial / 纸感 & 墨色 / 铜金点缀
   主题：html.dark 切换（由 i18n.js toggleDark 驱动）
   ============================================================ */

/* ── 设计变量 ─────────────────────────────── */
:root {
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Source Han Serif CN", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", Consolas, "Courier New", monospace;

  --bg: #f7f5f0;
  --bg-elev: #fdfcf9;
  --bg-soft: #efece4;
  --text: #1d1a16;
  --text-2: #5d574c;
  --text-3: #938c7d;
  --line: rgba(29, 26, 22, .15);
  --line-soft: rgba(29, 26, 22, .08);
  --accent: #997a4d;
  --accent-strong: #7c6136;
  --accent-soft: rgba(153, 122, 77, .12);
  --danger: #b5433a;
  --nav-bg: rgba(247, 245, 240, .85);
  --shadow-sm: 0 2px 10px -4px rgba(29, 26, 22, .12);
  --shadow-lg: 0 30px 70px -30px rgba(29, 26, 22, .35);
  --r: 6px;
  --r-sm: 3px;
  --nav-h: 76px;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

html.dark {
  --bg: #111014;
  --bg-elev: #1a191f;
  --bg-soft: #222127;
  --text: #ebe7df;
  --text-2: #a49d90;
  --text-3: #6f6a5f;
  --line: rgba(235, 231, 223, .16);
  --line-soft: rgba(235, 231, 223, .08);
  --accent: #c9a468;
  --accent-strong: #e0c08c;
  --accent-soft: rgba(201, 164, 104, .14);
  --danger: #d4655c;
  --nav-bg: rgba(17, 16, 20, .82);
  --shadow-sm: 0 2px 10px -4px rgba(0, 0, 0, .5);
  --shadow-lg: 0 30px 70px -30px rgba(0, 0, 0, .75);
}

/* ── 基础 ────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color .45s ease, color .45s ease;
}

img { max-width: 100%; display: block; }
a { color: inherit; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

::selection { background: var(--accent); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.dw-container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 36px; }
.dw-page { flex: 1; padding-top: var(--nav-h); }

/* ── 排版元素 ─────────────────────────────── */
.dw-kicker {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: .72rem;
  letter-spacing: .34em;
  color: var(--text-3);
  text-transform: uppercase;
  font-weight: 500;
}
.dw-kicker::before { content: ""; width: 44px; height: 1px; background: var(--accent); flex: none; }
.dw-kicker--center { justify-content: center; }
.dw-kicker--center::after { content: ""; width: 44px; height: 1px; background: var(--accent); flex: none; }

.dw-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  line-height: 1.25;
  letter-spacing: .04em;
  margin-top: 18px;
}

.dw-sub { color: var(--text-2); font-size: .98rem; margin-top: 14px; max-width: 560px; }
.dw-page-head { padding: 72px 0 48px; }
.dw-page-head--center { text-align: center; }
.dw-page-head--center .dw-sub { margin-left: auto; margin-right: auto; }
.dw-rule { height: 1px; background: var(--line-soft); border: 0; }

/* ── 按钮 ────────────────────────────────── */
.dw-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 36px;
  font-size: .82rem;
  letter-spacing: .18em;
  text-decoration: none;
  border: 1px solid var(--text);
  border-radius: var(--r-sm);
  background: var(--text);
  color: var(--bg);
  transition: transform .35s var(--ease-out), box-shadow .35s ease, background-color .35s ease, color .35s ease, border-color .35s ease;
  user-select: none;
}
.dw-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.dw-btn:active { transform: translateY(0); }
.dw-btn--ghost { background: transparent; color: var(--text); border-color: var(--line); }
.dw-btn--ghost:hover { border-color: var(--text); background: var(--text); color: var(--bg); }
.dw-btn--accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.dw-btn--accent:hover { background: var(--accent-strong); border-color: var(--accent-strong); }
.dw-btn[disabled] { opacity: .5; pointer-events: none; }
.dw-btn .arr { transition: transform .35s var(--ease-out); }
.dw-btn:hover .arr { transform: translateX(4px); }

/* ── 导航 ────────────────────────────────── */
.dw-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--nav-bg);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .4s ease, background-color .45s ease;
}
.dw-nav.scrolled { border-bottom-color: var(--line-soft); }
.dw-nav-inner {
  max-width: 1360px;
  margin: 0 auto;
  height: var(--nav-h);
  padding: 0 36px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.dw-nav-brand {
  font-family: var(--font-serif);
  font-size: 1.28rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-decoration: none;
  line-height: 1.15;
  display: flex;
  flex-direction: column;
  flex: none;
}
.dw-nav-brand span {
  font-family: var(--font-sans);
  font-size: .58rem;
  letter-spacing: .3em;
  color: var(--text-3);
  text-transform: uppercase;
  font-weight: 500;
}
.dw-nav-links { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.dw-nav-links a {
  position: relative;
  display: block;
  padding: 8px 13px;
  font-size: .86rem;
  letter-spacing: .1em;
  text-decoration: none;
  color: var(--text-2);
  transition: color .3s ease;
}
.dw-nav-links a::after {
  content: "";
  position: absolute;
  left: 13px; right: 13px; bottom: 2px;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease-out);
}
.dw-nav-links a:hover, .dw-nav-links a.active { color: var(--text); }
.dw-nav-links a:hover::after, .dw-nav-links a.active::after { transform: scaleX(1); }

.dw-nav-tools { display: flex; align-items: center; gap: 6px; flex: none; }
.dw-nav-tools .nav-lang {
  padding: 7px 9px;
  font-size: .76rem;
  letter-spacing: .08em;
  text-decoration: none;
  color: var(--text-3);
  border-radius: var(--r-sm);
  transition: color .3s, background-color .3s;
}
.dw-nav-tools .nav-lang:hover { color: var(--text); }
.dw-nav-tools .nav-lang.active { color: var(--accent); background: var(--accent-soft); }
.dw-nav-tools .nav-dark-toggle {
  width: 36px; height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--line-soft);
  border-radius: 50%;
  font-size: .92rem;
  color: var(--text-2);
  transition: border-color .3s, color .3s, transform .5s var(--ease-out);
}
.dw-nav-tools .nav-dark-toggle:hover { border-color: var(--accent); color: var(--accent); transform: rotate(40deg); }

.dw-nav-toggle {
  display: none;
  width: 40px; height: 40px;
  background: transparent;
  border: 0;
  position: relative;
  flex: none;
}
.dw-nav-toggle span {
  position: absolute;
  left: 9px; right: 9px;
  height: 1.5px;
  background: var(--text);
  transition: transform .4s var(--ease-out), top .4s var(--ease-out);
}
.dw-nav-toggle span:nth-child(1) { top: 15px; }
.dw-nav-toggle span:nth-child(2) { top: 24px; }
.dw-nav-toggle.x span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.dw-nav-toggle.x span:nth-child(2) { top: 19px; transform: rotate(-45deg); }

@media (max-width: 900px) {
  .dw-nav-inner { padding: 0 20px; gap: 14px; }
  .dw-nav-toggle { display: block; }
  .dw-nav-links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 28px 28px 36px;
    background: var(--nav-bg);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line-soft);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity .4s ease, transform .45s var(--ease-out), visibility 0s .45s;
  }
  .dw-nav-links.open { opacity: 1; visibility: visible; transform: translateY(0); transition: opacity .4s ease, transform .45s var(--ease-out), visibility 0s; }
  .dw-nav-links a {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    letter-spacing: .08em;
    padding: 10px 4px;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity .5s ease, transform .55s var(--ease-out), color .3s;
  }
  .dw-nav-links.open a { opacity: 1; transform: translateY(0); }
  .dw-nav-links.open a:nth-child(1) { transition-delay: .06s; }
  .dw-nav-links.open a:nth-child(2) { transition-delay: .12s; }
  .dw-nav-links.open a:nth-child(3) { transition-delay: .18s; }
  .dw-nav-links.open a:nth-child(4) { transition-delay: .24s; }
  .dw-nav-links.open a:nth-child(5) { transition-delay: .30s; }
  .dw-nav-links.open a:nth-child(6) { transition-delay: .36s; }
  .dw-nav-links a::after { left: 4px; right: auto; width: 26px; }
}

/* ── Hero（首页） ─────────────────────────── */
.dw-hero { position: relative; overflow: hidden; padding: 90px 0 80px; }
.dw-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 70px;
}
.dw-hero [data-hero] {
  opacity: 0;
  animation: dwFadeUp 1s var(--ease-out) forwards;
  animation-delay: var(--hd, 0s);
}
.dw-hero-avatar { position: relative; width: 300px; }
.dw-hero-avatar::before {
  content: "";
  position: absolute;
  inset: -14px -14px 22% -14px;
  border: 1px solid var(--line);
  border-radius: 999px 999px 0 0;
  pointer-events: none;
}
.dw-hero-avatar img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 999px 999px var(--r) var(--r);
  box-shadow: var(--shadow-lg);
}
.dw-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.9rem, 6.5vw, 4.6rem);
  font-weight: 600;
  letter-spacing: .06em;
  line-height: 1.15;
  margin: 20px 0 18px;
}
.dw-hero-tagline { color: var(--accent); letter-spacing: .22em; font-size: .85rem; }
.dw-hero-intro { color: var(--text-2); margin-top: 22px; max-width: 520px; font-size: .98rem; }
.dw-hero-cta { display: flex; gap: 16px; margin-top: 38px; flex-wrap: wrap; }
.dw-hero-vertical {
  position: absolute;
  right: 46px; top: 50%;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-size: .82rem;
  letter-spacing: .6em;
  color: var(--text-3);
  opacity: .55;
  pointer-events: none;
}
@media (max-width: 900px) {
  .dw-hero { padding: 56px 0 60px; }
  .dw-hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .dw-hero-avatar { width: min(240px, 62vw); margin: 0 auto; order: -1; }
  .dw-hero-vertical { display: none; }
}

/* ── 照片墙 / 卡片 ────────────────────────── */
.dw-masonry { columns: 3 300px; column-gap: 22px; }
.photo-card {
  break-inside: avoid;
  margin-bottom: 22px;
  border-radius: var(--r-sm);
  overflow: hidden;
  position: relative;
  cursor: zoom-in;
  background: var(--bg-soft);
  opacity: 0;
  transform: translateY(26px);
  transition: box-shadow .4s ease;
}
.photo-card.in { animation: dwCardIn .95s var(--ease-out) forwards; animation-delay: var(--cd, 0ms); }
.photo-card img { width: 100%; transition: transform 1s var(--ease-out), filter .6s ease; }
.photo-card:hover { box-shadow: var(--shadow-lg); }
.photo-card:hover img { transform: scale(1.045); }
.photo-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--line-soft);
  border-radius: inherit;
  pointer-events: none;
}

.dw-empty {
  text-align: center;
  color: var(--text-3);
  padding: 70px 20px;
  letter-spacing: .1em;
  font-size: .92rem;
}

/* ── 灯箱 ────────────────────────────────── */
.dw-lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(12, 11, 14, .88);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .35s ease, visibility 0s .35s;
}
.dw-lightbox.open { opacity: 1; visibility: visible; transition: opacity .35s ease, visibility 0s; }
.dw-lightbox figure { max-width: min(1100px, 92vw); max-height: 86vh; display: flex; flex-direction: column; align-items: center; }
.dw-lightbox img {
  max-width: 100%;
  max-height: 78vh;
  object-fit: contain;
  border-radius: var(--r-sm);
  box-shadow: 0 40px 90px -20px rgba(0, 0, 0, .7);
  transform: scale(.965);
  transition: transform .45s var(--ease-out);
}
.dw-lightbox.open img { transform: scale(1); }
.dw-lightbox-close {
  position: absolute;
  top: 26px; right: 30px;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .28);
  background: transparent;
  color: #f2efe8;
  font-size: 1.5rem;
  line-height: 1;
  transition: border-color .3s, transform .4s var(--ease-out), background-color .3s;
}
.dw-lightbox-close:hover { border-color: #fff; transform: rotate(90deg); background: rgba(255, 255, 255, .08); }
.dw-lightbox-like {
  position: absolute;
  bottom: 34px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .28);
  background: rgba(20, 19, 24, .55);
  color: #f2efe8;
  font-size: .9rem;
  letter-spacing: .06em;
  transition: border-color .3s, color .3s, transform .3s var(--ease-out);
}
.dw-lightbox-like:hover { border-color: #fff; transform: translateX(-50%) translateY(-2px); }
.dw-lightbox-like.liked { color: #e57373; border-color: #e57373; }
.dw-lightbox-exif {
  display: none;
  gap: 26px;
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  color: rgba(242, 239, 232, .75);
}
.dw-lightbox-exif span { display: inline-flex; align-items: center; gap: 6px; }

/* ── 分类卡片（样片/作品） ────────────────── */
.dw-cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 26px; }
.dw-cat-card {
  position: relative;
  display: block;
  text-decoration: none;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--bg-elev);
  transition: transform .5s var(--ease-out), box-shadow .5s ease, border-color .4s ease;
}
.dw-cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--line); }
.dw-cat-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-soft); }
.dw-cat-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease-out); }
.dw-cat-card:hover .dw-cat-media img { transform: scale(1.06); }
.dw-cat-media .dw-cat-ph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 3.4rem;
  color: var(--text-3);
  background: linear-gradient(135deg, var(--bg-soft), var(--accent-soft));
}
.dw-cat-body { display: flex; align-items: baseline; gap: 14px; padding: 22px 24px 24px; }
.dw-cat-num { font-family: var(--font-mono); font-size: .72rem; color: var(--text-3); letter-spacing: .12em; }
.dw-cat-title { font-family: var(--font-serif); font-size: 1.22rem; font-weight: 600; letter-spacing: .06em; }
.dw-cat-en { margin-left: auto; font-size: .68rem; letter-spacing: .22em; color: var(--text-3); text-transform: uppercase; }
.dw-cat-card .dw-cat-arrow {
  position: absolute;
  top: 18px; right: 18px;
  width: 38px; height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(20, 19, 24, .45);
  color: #fff;
  font-size: .95rem;
  opacity: 0;
  transform: translate(-6px, 6px);
  transition: opacity .4s ease, transform .5s var(--ease-out);
}
.dw-cat-card:hover .dw-cat-arrow { opacity: 1; transform: translate(0, 0); }

/* ── 视频 ────────────────────────────────── */
.dw-video-shell { border: 1px solid var(--line-soft); border-radius: var(--r); background: #0c0b0e; overflow: hidden; box-shadow: var(--shadow-lg); }
.dw-video-shell video { width: 100%; aspect-ratio: 16 / 9; display: block; background: #0c0b0e; }
.dw-video-ph {
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: rgba(242, 239, 232, .55);
  letter-spacing: .12em;
  font-size: .9rem;
}
.dw-video-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; margin-top: 26px; }
.dw-video-item {
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-elev);
  transition: transform .45s var(--ease-out), box-shadow .45s ease, border-color .3s;
}
.dw-video-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.dw-video-item.active { border-color: var(--accent); }
.dw-video-item video { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: #0c0b0e; pointer-events: none; }
.dw-video-item .n { padding: 12px 16px; font-size: .85rem; letter-spacing: .08em; color: var(--text-2); }
.dw-video-item.active .n { color: var(--accent); }

/* ── 表单 ────────────────────────────────── */
.dw-form { max-width: 640px; margin: 0 auto; }
.dw-field { margin-bottom: 26px; }
.dw-label { display: block; font-size: .8rem; letter-spacing: .16em; color: var(--text-2); margin-bottom: 10px; font-weight: 500; }
.dw-label small { color: var(--text-3); letter-spacing: .05em; font-weight: 400; }

.booking-input, .booking-textarea, .dw-input, .admin-login-input {
  width: 100%;
  padding: 13px 16px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text);
  font-size: .95rem;
  transition: border-color .3s ease, background-color .3s ease, box-shadow .3s ease;
}
.booking-textarea { min-height: 150px; resize: vertical; line-height: 1.7; }
.booking-input:focus, .booking-textarea:focus, .dw-input:focus, .admin-login-input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-elev);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.booking-input::placeholder, .booking-textarea::placeholder, .dw-input::placeholder, .admin-login-input::placeholder { color: var(--text-3); }
select.booking-input { appearance: auto; }
input[type="date"].booking-input, input[type="time"].booking-input { color-scheme: light; }
html.dark input[type="date"].booking-input, html.dark input[type="time"].booking-input { color-scheme: dark; }

.dw-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.dw-chip { position: relative; }
.dw-chip input { position: absolute; opacity: 0; pointer-events: none; }
.dw-chip span {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: .84rem;
  color: var(--text-2);
  transition: border-color .3s, color .3s, background-color .3s;
  user-select: none;
}
.dw-chip:hover span { border-color: var(--text-3); }
.dw-chip input:checked + span { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.dw-chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

.dw-counter { display: block; text-align: right; font-size: .74rem; color: var(--text-3); margin-top: 6px; font-family: var(--font-mono); }
.dw-error { color: var(--danger); font-size: .85rem; margin-top: 12px; min-height: 1.2em; letter-spacing: .04em; }
.dw-inline-row { display: flex; gap: 14px; flex-wrap: wrap; }
.dw-inline-row > * { flex: 1; min-width: 140px; }

/* ── 上传 ────────────────────────────────── */
.upload-zone {
  border: 1.5px dashed var(--line);
  border-radius: var(--r);
  padding: 60px 30px;
  text-align: center;
  cursor: pointer;
  transition: border-color .3s, background-color .3s, transform .3s ease;
}
.upload-zone:hover, .upload-zone.dragover { border-color: var(--accent); background: var(--accent-soft); }
.upload-zone-icon { font-size: 2rem; display: block; margin-bottom: 14px; opacity: .7; }
.upload-zone-text { color: var(--text-2); letter-spacing: .06em; }
.upload-zone-hint { color: var(--text-3); font-size: .8rem; margin-top: 6px; }
.upload-info { margin: 18px 0; padding: 14px 18px; border: 1px solid var(--line-soft); border-radius: var(--r-sm); background: var(--bg-elev); }
.upload-filename { font-size: .92rem; word-break: break-all; }
.upload-filesize { color: var(--text-3); font-size: .8rem; font-family: var(--font-mono); }
.upload-expiry { margin: 18px 0; }
.upload-radio { display: inline-flex; align-items: center; gap: 6px; margin-right: 18px; font-size: .88rem; color: var(--text-2); cursor: pointer; }
.upload-radio input { accent-color: var(--accent); }
.upload-progress { margin: 18px 0; }
.upload-progress-bar { height: 3px; background: var(--line-soft); border-radius: 2px; overflow: hidden; }
.upload-progress-fill { height: 100%; width: 0; background: var(--accent); border-radius: 2px; transition: width .25s ease; }
.upload-progress-text { font-size: .78rem; color: var(--text-3); font-family: var(--font-mono); margin-top: 8px; text-align: right; }
.upload-submit-btn, .upload-copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 34px;
  font-size: .82rem;
  letter-spacing: .18em;
  border: 1px solid var(--text);
  border-radius: var(--r-sm);
  background: var(--text);
  color: var(--bg);
  transition: transform .35s var(--ease-out), box-shadow .35s ease, opacity .3s;
}
.upload-submit-btn:hover, .upload-copy-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.upload-submit-btn[disabled] { opacity: .5; pointer-events: none; }
.upload-copy-btn { padding: 11px 22px; font-size: .76rem; flex: none; }
.upload-error { color: var(--danger); font-size: .85rem; margin-top: 12px; min-height: 1.2em; }
.upload-result { margin-top: 26px; padding: 26px; border: 1px solid var(--accent-soft); background: var(--accent-soft); border-radius: var(--r); }
.upload-result-title { font-family: var(--font-serif); font-size: 1.1rem; margin-bottom: 14px; }
.upload-result-url { display: flex; gap: 10px; }
.upload-result-expiry { margin-top: 12px; font-size: .78rem; color: var(--text-3); }

/* ── 社交 / 列表行 ────────────────────────── */
.dw-link-rows { border-top: 1px solid var(--line-soft); }
.dw-link-row {
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 30px 10px;
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  transition: padding .45s var(--ease-out), background-color .35s ease;
}
.dw-link-row:hover { padding-left: 26px; background: var(--bg-elev); }
.dw-link-row .idx { font-family: var(--font-mono); font-size: .74rem; color: var(--text-3); width: 34px; flex: none; }
.dw-link-row .name { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 600; letter-spacing: .06em; }
.dw-link-row .desc { color: var(--text-3); font-size: .82rem; letter-spacing: .1em; }
.dw-link-row .go { margin-left: auto; font-size: 1.25rem; color: var(--text-3); transition: transform .45s var(--ease-out), color .3s; }
.dw-link-row:hover .go { transform: translateX(8px); color: var(--accent); }
.dw-link-row--hl {
  flex-wrap: wrap;
  margin: 18px 0;
  padding: 30px 24px;
  border: 1px solid var(--accent);
  border-radius: var(--r);
  background: var(--accent-soft);
  box-shadow: 0 14px 40px -22px var(--accent);
}
.dw-link-row--hl:hover { padding-left: 34px; background: var(--accent-soft); }
.dw-row-badge {
  flex: none;
  padding: 5px 12px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  font-size: .66rem;
  letter-spacing: .16em;
  white-space: nowrap;
}

/* ── 免费软件卡片 ─────────────────────────── */
.dw-soft-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 24px; }
.dw-soft-card {
  display: flex;
  flex-direction: column;
  padding: 34px 30px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  background: var(--bg-elev);
  text-decoration: none;
  transition: transform .5s var(--ease-out), box-shadow .5s ease, border-color .4s;
}
.dw-soft-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.dw-soft-card .ico { font-size: 1.9rem; margin-bottom: 20px; }
.dw-soft-card h2 { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 600; letter-spacing: .04em; margin-bottom: 10px; }
.dw-soft-card .d { color: var(--text-2); font-size: .88rem; flex: 1; }
.dw-soft-card .u { margin-top: 20px; font-family: var(--font-mono); font-size: .76rem; color: var(--accent); word-break: break-all; }
.dw-soft-card .v { margin-top: 8px; font-size: .8rem; letter-spacing: .14em; color: var(--text-3); transition: color .3s; }
.dw-soft-card:hover .v { color: var(--accent); }

/* ── 关于页 ──────────────────────────────── */
.dw-about { max-width: 760px; margin: 0 auto; }
.dw-about-avatar { width: 180px; margin: 0 auto 36px; position: relative; }
.dw-about-avatar::before { content: ""; position: absolute; inset: -10px; border: 1px solid var(--line); border-radius: 999px 999px 0 0; }
.dw-about-avatar img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 999px 999px var(--r) var(--r); box-shadow: var(--shadow-lg); }
.dw-about-body { margin-top: 30px; color: var(--text-2); font-size: 1rem; }
.dw-about-body p { margin-bottom: 1em; }
.dw-about-body p:first-of-type { font-family: var(--font-serif); font-size: 1.35rem; color: var(--text); line-height: 1.6; }

/* ── 留言 / 认证 ─────────────────────────── */
.dw-auth-note { margin-top: 26px; text-align: center; font-size: .86rem; color: var(--text-3); }
.dw-auth-note a { color: var(--accent); text-decoration: none; letter-spacing: .06em; }
.dw-auth-note a:hover { text-decoration: underline; }
.dw-auth-note button { background: none; border: none; color: var(--danger); font-size: .82rem; margin-left: 12px; letter-spacing: .06em; }
.dw-auth-note button:hover { text-decoration: underline; }

.dw-tabs { display: flex; justify-content: center; gap: 6px; margin-bottom: 40px; border-bottom: 1px solid var(--line-soft); }
.dw-tab {
  padding: 12px 30px;
  background: none;
  border: none;
  font-size: .92rem;
  letter-spacing: .16em;
  color: var(--text-3);
  position: relative;
  transition: color .3s;
}
.dw-tab::after { content: ""; position: absolute; left: 20%; right: 20%; bottom: -1px; height: 2px; background: var(--accent); transform: scaleX(0); transition: transform .4s var(--ease-out); }
.dw-tab.active { color: var(--text); }
.dw-tab.active::after { transform: scaleX(1); }
.dw-switch { text-align: center; margin-top: 18px; font-size: .84rem; }
.dw-switch a { color: var(--accent); text-decoration: none; }
.dw-switch a:hover { text-decoration: underline; }

/* ── 问卷 ────────────────────────────────── */
.survey-page { flex: 1; width: 100%; max-width: 780px; margin: 0 auto; padding: calc(var(--nav-h) + 60px) 24px 90px; }
.survey-desc-text { text-align: center; color: var(--text-2); margin: 14px auto 40px; max-width: 560px; }
.survey-form { text-align: left; }
.survey-text-block { margin-bottom: 26px; color: var(--text-2); }
.survey-text-block img { border-radius: var(--r); margin: 12px 0; }
.survey-question-block {
  margin-bottom: 26px;
  padding: 26px 28px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  background: var(--bg-elev);
  transition: border-color .3s, box-shadow .3s;
}
.survey-question-block:hover { border-color: var(--line); }
.survey-q-title { font-family: var(--font-serif); font-size: 1.05rem; font-weight: 600; letter-spacing: .03em; margin-bottom: 16px; }
.survey-required { color: var(--danger); }
.survey-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 4px;
  font-size: .92rem;
  color: var(--text-2);
  cursor: pointer;
  border-radius: var(--r-sm);
  transition: color .25s, background-color .25s;
}
.survey-option:hover { color: var(--text); background: var(--accent-soft); }
.survey-option input { accent-color: var(--accent); width: 16px; height: 16px; }
.survey-select, .survey-textarea { max-width: 460px; }
.survey-submit {
  display: inline-flex;
  padding: 14px 48px;
  font-size: .85rem;
  letter-spacing: .2em;
  border: 1px solid var(--text);
  border-radius: var(--r-sm);
  background: var(--text);
  color: var(--bg);
  transition: transform .35s var(--ease-out), box-shadow .35s ease;
}
.survey-submit:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.survey-error { color: var(--danger); text-align: center; margin-top: 18px; font-size: .88rem; }
.survey-success { text-align: center; padding: 90px 20px; }
.survey-success h2 { font-family: var(--font-serif); font-size: 1.6rem; margin: 12px 0; }
.survey-success p { color: var(--text-2); }
.survey-image-missing { padding: 30px; text-align: center; color: var(--text-3); border: 1px dashed var(--line); border-radius: var(--r); font-size: .85rem; }
.survey-modal { position: fixed; inset: 0; z-index: 300; display: flex; align-items: center; justify-content: center; }
.survey-modal-overlay { position: absolute; inset: 0; background: rgba(12, 11, 14, .6); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.survey-modal-content { position: relative; background: var(--bg-elev); border: 1px solid var(--line-soft); border-radius: var(--r); padding: 30px; width: min(560px, 92vw); max-height: 86vh; overflow: auto; box-shadow: var(--shadow-lg); }
.survey-preview-info { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; font-size: .9rem; }
.survey-preview-info label { flex: none; min-width: 70px; color: var(--text-2); }

/* ── 相册（客户交付） ─────────────────────── */
.album-photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin-top: 30px; }
.album-photo-item {
  border-radius: var(--r-sm);
  overflow: hidden;
  cursor: zoom-in;
  background: var(--bg-soft);
  aspect-ratio: 1;
  opacity: 0;
  transform: translateY(18px);
  transition: box-shadow .35s ease;
}
.album-photo-item.in { animation: dwCardIn .8s var(--ease-out) forwards; animation-delay: var(--cd, 0ms); }
.album-photo-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s var(--ease-out); }
.album-photo-item:hover { box-shadow: var(--shadow-lg); }
.album-photo-item:hover img { transform: scale(1.05); }

/* ── 加载动画 ────────────────────────────── */
.dw-spinner { display: flex; justify-content: center; padding: 70px 0; }
.dw-spinner::after {
  content: "";
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--line);
  border-top-color: var(--accent);
  animation: dwSpin .8s linear infinite;
}
@keyframes dwSpin { to { transform: rotate(360deg); } }

/* ── Toast ───────────────────────────────── */
.dw-toast {
  position: fixed;
  bottom: 40px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  z-index: 400;
  padding: 13px 30px;
  background: var(--text);
  color: var(--bg);
  border-radius: 999px;
  font-size: .86rem;
  letter-spacing: .08em;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s ease, transform .5s var(--ease-out);
}
.dw-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ── 页脚 ────────────────────────────────── */
.dw-footer { border-top: 1px solid var(--line-soft); margin-top: 40px; }
.dw-footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 44px 36px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}
.dw-footer-brand { font-size: .82rem; color: var(--text-2); letter-spacing: .1em; }
.dw-footer-beian { font-size: .74rem; color: var(--text-3); display: flex; align-items: center; gap: 14px; flex-wrap: wrap; justify-content: center; }
.dw-footer-beian a { color: var(--text-3); text-decoration: none; letter-spacing: .05em; transition: color .3s; }
.dw-footer-beian a:hover { color: var(--accent); }
.dw-footer-beian .sep { width: 3px; height: 3px; border-radius: 50%; background: var(--line); }
.dw-footer-admin { font-size: .74rem; color: var(--text-3); text-decoration: none; letter-spacing: .1em; transition: color .3s; }
.dw-footer-admin:hover { color: var(--accent); }

/* ── 管理后台（兼容 script.js 生成的结构） ── */
.admin-page { flex: 1; width: 100%; max-width: 1180px; margin: 0 auto; padding: 60px 24px 80px; }
.admin-page#adminLogin { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 100vh; padding-top: 40px; }
.admin-title { font-family: var(--font-serif); font-size: 1.9rem; font-weight: 600; letter-spacing: .1em; text-align: center; margin-bottom: 34px; }
.admin-login-form { width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: 14px; }
.admin-login-btn {
  padding: 13px;
  border: 1px solid var(--text);
  border-radius: var(--r-sm);
  background: var(--text);
  color: var(--bg);
  font-size: .85rem;
  letter-spacing: .3em;
  transition: transform .35s var(--ease-out), box-shadow .35s ease, opacity .3s;
}
.admin-login-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.admin-login-btn[disabled] { opacity: .5; pointer-events: none; }
.admin-login-error { color: var(--danger); font-size: .84rem; text-align: center; min-height: 1.2em; }

.admin-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-bottom: 30px; padding-bottom: 22px; border-bottom: 1px solid var(--line-soft); }
.admin-tabs { display: flex; flex-wrap: wrap; gap: 8px; }
.admin-tab {
  padding: 8px 18px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: transparent;
  color: var(--text-2);
  font-size: .82rem;
  letter-spacing: .08em;
  transition: all .3s ease;
}
.admin-tab:hover { border-color: var(--text-3); color: var(--text); }
.admin-tab.active { background: var(--text); color: var(--bg); border-color: var(--text); }
.admin-header-actions { display: flex; gap: 10px; align-items: center; }
.admin-btn {
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--text-2);
  font-size: .8rem;
  letter-spacing: .08em;
  transition: all .3s ease;
}
.admin-btn:hover { border-color: var(--text); color: var(--text); }
.admin-btn--danger, .admin-btn.danger { color: var(--danger); border-color: var(--danger); }
.admin-btn--danger:hover, .admin-btn.danger:hover { background: var(--danger); color: #fff; }

.admin-table-wrapper { overflow-x: auto; border: 1px solid var(--line-soft); border-radius: var(--r); background: var(--bg-elev); padding: 8px; }
.admin-table { width: 100%; border-collapse: collapse; font-size: .86rem; }
.admin-table th {
  text-align: left;
  padding: 13px 14px;
  font-size: .7rem;
  letter-spacing: .18em;
  color: var(--text-3);
  font-weight: 500;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.admin-table td { padding: 12px 14px; border-bottom: 1px solid var(--line-soft); color: var(--text-2); vertical-align: top; }
.admin-table tbody tr { transition: background-color .25s; }
.admin-table tbody tr:hover { background: var(--accent-soft); }
.admin-table tbody tr:last-child td { border-bottom: 0; }
.admin-table .admin-btn { padding: 4px 12px; font-size: .74rem; margin-right: 6px; }
.admin-empty { text-align: center; color: var(--text-3); padding: 46px 20px; font-size: .88rem; letter-spacing: .1em; }

.traffic-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 24px; }
.traffic-stat { border: 1px solid var(--line-soft); border-radius: var(--r); background: var(--bg-elev); padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.traffic-label { font-size: .72rem; letter-spacing: .18em; color: var(--text-3); }
.traffic-value { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 600; }

.dash-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 18px; margin-top: 26px; }
.dash-card { border: 1px solid var(--line-soft); border-radius: var(--r); background: var(--bg-elev); padding: 24px; transition: transform .45s var(--ease-out), box-shadow .45s ease, border-color .3s; }
.dash-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--line); }
.dash-card h3 { font-family: var(--font-serif); font-size: 1.02rem; margin-bottom: 10px; }

@media (max-width: 640px) {
  .admin-table thead { display: none; }
  .admin-table, .admin-table tbody, .admin-table tr, .admin-table td { display: block; width: 100%; }
  .admin-table tr { border-bottom: 1px solid var(--line); padding: 8px 0; }
  .admin-table td { border: 0; padding: 6px 14px; }
  .admin-table td::before { content: attr(data-label); display: block; font-size: .68rem; letter-spacing: .16em; color: var(--text-3); margin-bottom: 2px; }
}

/* ── 入场与滚动动画 ───────────────────────── */
@keyframes dwCardIn { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: translateY(0); } }
@keyframes dwFadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes dwFadeIn { from { opacity: 0; } to { opacity: 1; } }

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s ease, transform 1s var(--ease-out);
  transition-delay: var(--d, 0s);
}
html.js [data-reveal].revealed { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  html.js [data-reveal] { opacity: 1; transform: none; }
}

/* ── 响应式 ──────────────────────────────── */
@media (max-width: 640px) {
  .dw-container { padding: 0 20px; }
  .dw-page-head { padding: 48px 0 36px; }
  .dw-masonry { columns: 1; }
  .photo-card { margin-bottom: 14px; }
  .dw-footer-inner { padding: 36px 20px 32px; }
  .upload-result-url { flex-direction: column; }
  .survey-page { padding-top: calc(var(--nav-h) + 36px); }
}

/* ── 首页产品秀（Apple 风格全屏分区） ─────── */
.dw-show {
  position: relative;
  min-height: 94vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  color: #f5f2ec;
  content-visibility: auto;
  contain-intrinsic-size: auto 94vh;
}
.dw-show-bg { position: absolute; inset: 0; }
.dw-show-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: dwKenBurns 26s ease-in-out infinite alternate;
  animation-play-state: paused; /* 仅在视口内播放，见 .in-view */
}
.dw-show.in-view .dw-show-bg img { animation-play-state: running; }
.dw-show:nth-child(even) .dw-show-bg img { animation-direction: alternate-reverse; animation-duration: 32s; }
.dw-show::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 9, 12, .62), rgba(10, 9, 12, .30) 42%, rgba(10, 9, 12, .68));
}
.dw-show-inner { position: relative; z-index: 1; padding: 90px 24px; max-width: 920px; }
.dw-show-kicker {
  font-size: .74rem;
  letter-spacing: .42em;
  text-transform: uppercase;
  color: rgba(245, 242, 236, .72);
  margin-bottom: 22px;
}
.dw-show-title {
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 600;
  letter-spacing: .05em;
  line-height: 1.2;
}
.dw-show-desc {
  margin-top: 20px;
  font-size: clamp(.95rem, 1.6vw, 1.15rem);
  letter-spacing: .12em;
  color: rgba(245, 242, 236, .88);
}
.dw-show-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 42px;
  padding: 13px 36px;
  border: 1px solid rgba(245, 242, 236, .55);
  border-radius: 999px;
  color: #f5f2ec;
  text-decoration: none;
  font-size: .82rem;
  letter-spacing: .2em;
  background: rgba(255, 255, 255, .06);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: background-color .35s, color .35s, border-color .35s, transform .35s var(--ease-out);
}
.dw-show-link:hover { background: #f5f2ec; color: #17161a; border-color: #f5f2ec; transform: translateY(-2px); }

/* 渐变背景分区（无照片时使用） */
.dw-show-bg--gradient {
  background: linear-gradient(118deg, #14161f, #2c2333, #14202b, #26201a, #14161f);
  background-size: 400% 400%;
  animation: dwGradientFlow 22s ease infinite;
  animation-play-state: paused;
}
.dw-show.in-view .dw-show-bg--gradient { animation-play-state: running; }

@keyframes dwKenBurns {
  from { transform: scale(1) translate(0, 0); }
  to { transform: scale(1.12) translate(-1.6%, 1.6%); }
}
@keyframes dwGradientFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@media (max-width: 640px) {
  .dw-show { min-height: 78vh; }
  .dw-show-inner { padding: 60px 22px; }
}