/* =====================================================
   前台样式 — 全新现代设计
   ===================================================== */

/* ---------- 首页英雄区(科技风) ---------- */
.hero {
  position: relative;
  padding: 96px 20px 110px;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse 55% 45% at 20% 0%, rgba(37,99,235,.12), transparent),
    radial-gradient(ellipse 45% 40% at 85% 10%, rgba(6,182,212,.1), transparent),
    #ffffff;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,.05) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 20%, transparent 75%);
  pointer-events: none;
}
[data-theme="dark"] .hero {
  background:
    radial-gradient(ellipse 55% 45% at 20% 0%, rgba(59,130,246,.15), transparent),
    radial-gradient(ellipse 45% 40% at 85% 10%, rgba(34,211,238,.12), transparent),
    var(--md-sys-color-surface);
}
.hero > * { position: relative; }
.hero .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  border-radius: 999px;
  background: rgba(255,255,255,.9);
  border: 1px solid rgba(37,99,235,.15);
  color: var(--md-sys-color-on-surface-variant);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 28px;
  box-shadow: 0 2px 12px rgba(37,99,235,.08);
  backdrop-filter: blur(8px);
  animation: badgeFloat 3s ease-in-out infinite;
}
@keyframes badgeFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}
.hero .hero-badge .material-symbols-rounded { color: var(--md-sys-color-primary); font-size: 17px; }
.hero .hero-badge .pulse-dot { margin-right: 2px; }
.hero h1 {
  font-size: clamp(32px, 5.5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.hero .hero-sub {
  color: var(--md-sys-color-on-surface-variant);
  margin: 18px auto 0;
  max-width: 600px;
  font-size: 16px;
  line-height: 1.8;
}

/* ---------- 搜索区(科技风) ---------- */
.search-card {
  margin: -50px auto 0;
  max-width: 660px;
  position: relative;
  z-index: 5;
  padding: 22px;
  border-radius: var(--md-radius-large);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(37,99,235,.12);
  box-shadow: 0 8px 40px rgba(37,99,235,.1), 0 2px 8px rgba(15,23,42,.04);
}
[data-theme="dark"] .search-card {
  background: var(--md-sys-color-surface-container);
  border-color: var(--md-sys-color-outline-variant);
}
.search-bar {
  display: flex;
  gap: 8px;
  background: var(--md-sys-color-surface-container-lowest);
  border: 1.5px solid var(--md-sys-color-outline-variant);
  border-radius: 18px;
  padding: 7px 7px 7px 20px;
  align-items: center;
  transition: border-color .25s, box-shadow .25s;
}
.search-bar:focus-within {
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 4px rgba(37,99,235,.12), 0 0 20px rgba(37,99,235,.08);
}
.search-bar .material-symbols-rounded { color: var(--md-sys-color-on-surface-variant); flex: none; }
.search-bar input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  height: 46px;
  font-size: 16px;
  color: var(--md-sys-color-on-surface);
  min-width: 0;
}
.search-bar input::placeholder { color: var(--md-sys-color-outline); }
.search-hint { text-align: center; margin-top: 14px; font-size: 13px; color: var(--md-sys-color-on-surface-variant); }
.search-hint .material-symbols-rounded { font-size: 16px; vertical-align: -3px; color: var(--md-sys-color-primary); }

/* ---------- 查询结果卡片 ---------- */
.result-card { max-width: 660px; margin: 26px auto 0; border-radius: var(--md-radius-large); overflow: hidden; }

/* ---------- 状态横幅(查询结果) ---------- */
.status-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  border-radius: 14px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}
.status-banner .sb-icon { font-size: 30px; flex: none; }
.status-banner .sb-text { flex: 1; min-width: 0; }
.status-banner .sb-title { font-size: 16px; font-weight: 800; letter-spacing: -0.01em; }
.status-banner .sb-sub { font-size: 12px; opacity: .72; font-weight: 600; margin-top: 1px; }
.status-banner .sb-pulse { flex: none; width: 11px; height: 11px; border-radius: 50%; background: currentColor; }
.status-mortgaging {
  background: linear-gradient(135deg, #eff6ff 0%, #e0ecff 100%);
  color: #1d4ed8;
  border: 1px solid rgba(37,99,235,.22);
}
.status-mortgaging .sb-pulse { animation: sbPulse 1.6s ease-out infinite; }
.status-settled {
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
  color: #047857;
  border: 1px solid rgba(16,185,129,.22);
}
.status-overdue {
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  color: #b91c1c;
  border: 1px solid rgba(239,68,68,.22);
}
.status-overdue .sb-pulse { animation: sbBlink 1s ease-in-out infinite; }
@keyframes sbPulse {
  0% { box-shadow: 0 0 0 0 rgba(37,99,235,.45); }
  70% { box-shadow: 0 0 0 9px rgba(37,99,235,0); }
  100% { box-shadow: 0 0 0 0 rgba(37,99,235,0); }
}
@keyframes sbBlink { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }
[data-theme="dark"] .status-mortgaging { background: rgba(37,99,235,.16); color: #93c5fd; border-color: rgba(59,130,246,.35); }
[data-theme="dark"] .status-settled { background: rgba(16,185,129,.16); color: #6ee7b7; border-color: rgba(16,185,129,.35); }
[data-theme="dark"] .status-overdue { background: rgba(239,68,68,.16); color: #fca5a5; border-color: rgba(239,68,68,.35); }

/* 详情页顶部状态横幅 */
.d-hero-banner {
  margin: 4px 0 18px;
  padding: 18px 20px;
  border-radius: var(--md-radius-medium);
  box-shadow: var(--md-elevation-2);
}
.d-hero-banner .sb-icon { font-size: 34px; }
.d-hero-banner .sb-title { font-size: 18px; }
.d-hero-banner .sb-sub { font-size: 13px; }

/* ---------- 验证失败弹窗 ---------- */
.verify-error-overlay { z-index: 110; }
.verify-alert-dialog {
  z-index: 120;
  width: min(420px, calc(100% - 32px));
  text-align: center;
  padding: 30px 26px;
}
.verify-alert-icon {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--md-sys-color-error-container);
  color: var(--md-sys-color-error);
  animation: alertPop .4s cubic-bezier(.2,.8,.3,1.2);
}
.verify-alert-icon .material-symbols-rounded { font-size: 34px; }
.verify-alert h2 { font-size: 20px; margin-bottom: 8px; }
.verify-alert p { color: var(--md-sys-color-on-surface-variant); font-size: 14px; line-height: 1.7; margin-bottom: 22px; }
@keyframes alertPop {
  0% { transform: scale(.6); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* 查询次数统计 */
.query-stats {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.d-hero-qs {
  justify-content: center;
  margin: -6px 0 20px;
}
.qs-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 650;
}
.qs-item .material-symbols-rounded { font-size: 17px; }
.qs-success {
  background: var(--md-sys-color-success-container);
  color: var(--md-sys-color-on-success-container);
}
.qs-fail {
  background: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
}

.result-cover {
  width: 100%;
  height: 230px;
  object-fit: cover;
  border-radius: var(--md-radius-medium);
  background: var(--md-sys-color-surface-container-low);
}
.result-info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
.info-item {
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-radius-small);
  padding: 13px 15px;
}
.info-item .k { font-size: 12px; color: var(--md-sys-color-on-surface-variant); font-weight: 600; }
.info-item .v { font-size: 18px; font-weight: 700; margin-top: 3px; letter-spacing: -0.01em; }
.info-item .v.money { color: var(--md-sys-color-primary); }

/* ---------- 特性区块 ---------- */
.features { padding: 72px 20px 40px; }
.section-head { text-align: center; margin-bottom: 36px; }
.section-head .kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.feature-card {
  padding: 28px 22px;
  border-radius: var(--md-radius-medium);
  transition: transform .3s cubic-bezier(.2,.8,.3,1), box-shadow .3s, border-color .3s;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(37,99,235,.12), 0 4px 12px rgba(15,23,42,.05);
  border-color: rgba(37,99,235,.3);
}
.feature-card .f-icon {
  width: 56px; height: 56px;
  border-radius: 17px;
  background: var(--brand-grad-soft);
  color: var(--md-sys-color-primary);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  position: relative;
  transition: transform .3s;
}
.feature-card:hover .f-icon { transform: scale(1.08) rotate(-3deg); }
.feature-card .f-icon::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 20px;
  border: 1.5px solid rgba(37,99,235,.2);
  opacity: 0;
  transition: opacity .3s;
}
.feature-card:hover .f-icon::after { opacity: 1; }
.feature-card .f-icon .material-symbols-rounded { font-size: 28px; }
.feature-card h3 { font-size: 17px; margin-bottom: 7px; }
.feature-card p { font-size: 13.5px; color: var(--md-sys-color-on-surface-variant); line-height: 1.7; }

/* ---------- 步骤说明 ---------- */
.steps-section { padding: 20px 20px 72px; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 18px; counter-reset: step; }
.step-card {
  padding: 26px 22px;
  border-radius: var(--md-radius-medium);
  position: relative;
  overflow: hidden;
  transition: transform .3s cubic-bezier(.2,.8,.3,1), box-shadow .3s;
}
.step-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--brand-grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s cubic-bezier(.2,.8,.3,1);
}
.step-card:hover { transform: translateY(-5px); box-shadow: 0 12px 32px rgba(37,99,235,.1); }
.step-card:hover::before { transform: scaleX(1); }
.step-num {
  width: 42px; height: 42px;
  border-radius: 13px;
  background: var(--brand-grad);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 750;
  font-size: 17px;
  margin-bottom: 14px;
  box-shadow: var(--md-elevation-brand);
  font-family: "JetBrains Mono", Consolas, monospace;
}
.step-card h3 { font-size: 16px; margin-bottom: 5px; }
.step-card p { font-size: 13.5px; }

/* ---------- 详情页(全新布局) ---------- */
.d-hero {
  position: relative;
  background:
    radial-gradient(ellipse 55% 60% at 12% 0%, rgba(37,99,235,.14), transparent),
    radial-gradient(ellipse 45% 55% at 92% 15%, rgba(6,182,212,.1), transparent),
    #ffffff;
  padding: 30px 20px 0;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  overflow: hidden;
}
[data-theme="dark"] .d-hero {
  background:
    radial-gradient(ellipse 55% 60% at 12% 0%, rgba(59,130,246,.18), transparent),
    radial-gradient(ellipse 45% 55% at 92% 15%, rgba(34,211,238,.12), transparent),
    var(--md-sys-color-surface-container-low);
}
.d-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,.05) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 0%, #000 20%, transparent 80%);
  pointer-events: none;
}
.d-hero .container { max-width: 1000px; position: relative; }

.d-hero-top { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.d-back {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  color: var(--md-sys-color-on-surface-variant);
  padding: 7px 14px;
  border-radius: 10px;
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container);
  transition: all .18s;
}
.d-back:hover { color: var(--md-sys-color-primary); border-color: var(--md-sys-color-primary); }
.d-back .material-symbols-rounded { font-size: 17px; }

.d-hero-main {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 22px;
}
.d-hero-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 4px;
}
.d-hero-no h1 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.02em;
  word-break: break-all;
  background: var(--brand-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.d-hero-device {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 13px;
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  font-weight: 600;
  font-size: 14px;
  box-shadow: var(--md-elevation-1);
}
.d-hero-device .material-symbols-rounded { color: var(--md-sys-color-primary); font-size: 20px; }

.d-hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 26px;
  padding-bottom: 28px;
}
.d-stat {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-radius-medium);
  padding: 16px 18px;
  box-shadow: var(--md-elevation-1);
}
.d-stat-v { font-size: 19px; font-weight: 800; letter-spacing: -0.02em; }
.d-stat-k { font-size: 12px; color: var(--md-sys-color-on-surface-variant); font-weight: 600; margin-top: 3px; }

.d-body { max-width: 1000px; margin: 0 auto; padding: 28px 20px 80px; }

.d-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: start; }
.d-col { display: flex; flex-direction: column; gap: 18px; min-width: 0; }

.d-card {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-radius-medium);
  padding: 20px;
}
.d-card-head {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}
.d-card-head .material-symbols-rounded {
  color: var(--md-sys-color-primary);
  background: var(--brand-grad-soft);
  border-radius: 9px;
  padding: 5px;
  font-size: 20px;
}

.d-rows { display: flex; flex-direction: column; }
.d-row {
  display: flex;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}
.d-row:last-child { border-bottom: none; padding-bottom: 0; }
.d-row:first-child { padding-top: 0; }
.d-k { width: 96px; flex: none; color: var(--md-sys-color-on-surface-variant); font-size: 13px; font-weight: 600; }
.d-v { flex: 1; font-weight: 550; word-break: break-all; min-width: 0; }

.d-note { font-size: 13.5px; color: var(--md-sys-color-on-surface-variant); line-height: 1.8; }
.d-note strong { color: var(--md-sys-color-primary); }

/* ---------- 溯源时间线(手风琴) ---------- */
.d-timeline-section { margin-top: 30px; }
.d-section-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.d-section-head .material-symbols-rounded {
  color: var(--md-sys-color-primary);
  background: var(--brand-grad-soft);
  border-radius: 10px;
  padding: 6px;
  font-size: 22px;
}
.d-section-head h2 { font-size: 21px; font-weight: 750; letter-spacing: -0.02em; flex: 1; }

.d-timeline { position: relative; padding-left: 26px; }
.d-timeline::before {
  content: '';
  position: absolute;
  left: 8px; top: 14px; bottom: 14px;
  width: 2px;
  background: linear-gradient(var(--brand-1), var(--brand-2));
  opacity: .3;
  border-radius: 2px;
}
.d-tl-item {
  position: relative;
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-radius-medium);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow .2s, border-color .2s;
}
.d-tl-item:hover { border-color: color-mix(in srgb, var(--md-sys-color-primary) 40%, var(--md-sys-color-outline-variant)); }
.d-tl-item[open] { box-shadow: var(--md-elevation-2); border-color: color-mix(in srgb, var(--md-sys-color-primary) 50%, var(--md-sys-color-outline-variant)); }
.d-tl-dot {
  position: absolute;
  left: -24px; top: 20px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--brand-grad);
  box-shadow: 0 0 0 4px var(--md-sys-color-surface), var(--md-elevation-brand);
}
.d-tl-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.d-tl-head::-webkit-details-marker { display: none; }
.d-tl-info { flex: 1; min-width: 0; }
.d-tl-title { font-size: 15.5px; font-weight: 700; letter-spacing: -0.01em; }
.d-tl-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12.5px;
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 600;
  margin-top: 4px;
}
.d-tl-meta .material-symbols-rounded { font-size: 15px; }
.d-tl-sep { margin: 0 4px; }
.d-tl-arrow { color: var(--md-sys-color-on-surface-variant); transition: transform .25s; flex: none; }
.d-tl-item[open] .d-tl-arrow { transform: rotate(180deg); color: var(--md-sys-color-primary); }
.d-tl-body {
  padding: 4px 18px 18px;
  border-top: 1px dashed var(--md-sys-color-outline-variant);
}
.d-tl-remark {
  font-size: 13.5px;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.7;
  padding: 12px 0 4px;
}

/* ---------- 图片网格 ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.gallery-item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--md-radius-small);
  overflow: hidden;
  cursor: pointer;
  background: var(--md-sys-color-surface-container-low);
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item .cat-tag {
  position: absolute;
  left: 7px; bottom: 7px;
  background: rgba(15,23,42,.68);
  backdrop-filter: blur(4px);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 7px;
}

/* ---------- 视频网格 ---------- */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.video-card { overflow: hidden; }
.video-card video { width: 100%; border-radius: var(--md-radius-small); background: #000; aspect-ratio: 16/9; }

/* ---------- 页脚 ---------- */
.footer {
  background: var(--md-sys-color-surface-container);
  border-top: 1px solid var(--md-sys-color-outline-variant);
  padding: 40px 20px;
  margin-top: 40px;
  text-align: center;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 13px;
}
.footer .f-brand { font-weight: 700; color: var(--md-sys-color-on-surface); font-size: 15px; }

/* ---------- 主题切换按钮 ---------- */
.theme-toggle { flex: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .d-grid { grid-template-columns: 1fr; }
  .d-hero-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .hero { padding: 60px 16px 80px; }
  .result-info-grid { gap: 10px; }
  .info-item .v { font-size: 16px; }
  .gallery-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); }
  .search-bar { padding-left: 14px; }
  .search-bar .m3-btn { padding: 0 16px; }

  /* 详情页移动端 */
  .d-hero { padding: 22px 16px 0; }
  .d-hero-main { flex-direction: column; align-items: flex-start; gap: 12px; }
  .d-hero-stats { grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 20px; padding-bottom: 22px; }
  .d-stat { padding: 13px 14px; }
  .d-stat-v { font-size: 16px; }
  .d-body { padding: 20px 16px 60px; }
  .d-row { flex-direction: column; gap: 3px; }
  .d-k { width: auto; }
  .d-timeline { padding-left: 22px; }
  .d-tl-dot { left: -20px; }
  .d-tl-head { padding: 14px 14px; gap: 10px; }
  .d-tl-body { padding: 4px 14px 14px; }
}