/* 葆序臻AI口播文案生成H5 - 科技感 · 一线品牌风（蓝绿主色延续） */
:root {
  --primary: #16A3A8;
  --primary-dark: #0D7377;
  --primary-light: #E0F7FA;
  --accent: #0EA5E9;
  --ink: #08262B;
  --bg: #F3FAFB;
  --tech-line: rgba(22, 163, 168, 0.22);
  --card-bg: rgba(255, 255, 255, 0.82);
  --card-border: rgba(255, 255, 255, 0.7);
  --text: #1F2937;
  --text-secondary: #64748B;
  --border: #CFEEF0;
  --surface: rgba(255, 255, 255, 0.85);
  --surface-2: #E6F8F9;
  --chip: rgba(255, 255, 255, 0.7);
  --copy-bg: rgba(255, 255, 255, 0.92);
  --footer-bg: rgba(255, 255, 255, 0.9);
  --grid-line: rgba(22, 163, 168, 0.05);
  --danger: #EF4444;
  --warning: #F59E0B;
  --success: #10B981;
  --radius: 16px;
  --nav-h: 52px;
  --shadow: 0 6px 24px rgba(13, 115, 119, 0.10);
  --shadow-lg: 0 16px 44px rgba(13, 115, 119, 0.20);
  --mono: 'SF Mono', 'JetBrains Mono', 'Roboto Mono', ui-monospace, Menlo, Consolas, monospace;
}

/* ===== 深色模式：深青底 + 青绿发光 ===== */
[data-theme="dark"] {
  --primary: #2DD4BF;
  --primary-dark: #0D7377;
  --primary-light: #0B3B40;
  --ink: #ECFEFF;
  --bg: radial-gradient(150% 120% at 50% -10%, #08343B 0%, #04181C 62%);
  --tech-line: rgba(45, 212, 191, 0.34);
  --card-bg: rgba(10, 44, 50, 0.52);
  --card-border: rgba(45, 212, 191, 0.16);
  --text: #E8F6F7;
  --text-secondary: #8FB6BC;
  --border: rgba(45, 212, 191, 0.22);
  --surface: rgba(12, 50, 56, 0.6);
  --surface-2: rgba(45, 212, 191, 0.14);
  --chip: rgba(12, 50, 56, 0.55);
  --copy-bg: rgba(8, 38, 43, 0.62);
  --footer-bg: rgba(6, 28, 32, 0.82);
  --grid-line: rgba(45, 212, 191, 0.08);
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 44px rgba(0, 0, 0, 0.5);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; }
html, body {
  margin: 0; padding: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  line-height: 1.6; overflow-x: hidden;
}
[data-theme="dark"] body { background-attachment: fixed; }
body { padding-top: var(--nav-h); }

/* 科技网格肌理 */
body::before {
  content: ''; position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(circle at 50% 22%, #000 0%, transparent 78%);
  mask-image: radial-gradient(circle at 50% 22%, #000 0%, transparent 78%);
}

/* 自定义滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: linear-gradient(var(--primary), var(--primary-dark)); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

/* ===== 动态健康光晕背景 ===== */
.bg-decor { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(64px); opacity: 0.42; }
.orb-1 { width: 460px; height: 460px; left: -120px; top: -80px;
  background: radial-gradient(circle, rgba(22,163,168,0.55), transparent 70%);
  animation: drift1 18s ease-in-out infinite; }
.orb-2 { width: 520px; height: 520px; right: -140px; top: 16%;
  background: radial-gradient(circle, rgba(14,165,233,0.42), transparent 70%);
  animation: drift2 22s ease-in-out infinite; }
.orb-3 { width: 420px; height: 420px; left: 32%; bottom: -160px;
  background: radial-gradient(circle, rgba(16,185,129,0.38), transparent 70%);
  animation: drift3 20s ease-in-out infinite; }
[data-theme="dark"] .orb { opacity: 0.6; }
@keyframes drift1 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(60px,40px) scale(1.12); } }
@keyframes drift2 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-50px,50px) scale(1.1); } }
@keyframes drift3 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(40px,-40px) scale(1.15); } }

.leaf { position: absolute; font-size: 22px; opacity: 0; animation: floatUp 14s linear infinite; }
.leaf-1 { left: 12%; bottom: -40px; animation-delay: 0s; }
.leaf-2 { left: 50%; bottom: -40px; font-size: 18px; animation-delay: 5s; }
.leaf-3 { left: 78%; bottom: -40px; font-size: 20px; animation-delay: 9s; }
@keyframes floatUp {
  0% { transform: translateY(0) rotate(0); opacity: 0; }
  10% { opacity: 0.5; }
  90% { opacity: 0.5; }
  100% { transform: translateY(-110vh) rotate(40deg); opacity: 0; }
}

/* ===== 顶部细导航条（毛玻璃半透明：Logo 左、入口右） ===== */
.topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--nav-h);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid var(--tech-line);
  box-shadow: 0 4px 20px rgba(8, 40, 45, 0.08);
}
[data-theme="dark"] .topnav {
  background: rgba(4, 22, 26, 0.6);
  border-bottom-color: rgba(45, 212, 191, 0.22);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
}
.topnav-inner { max-width: 1280px; height: 100%; margin: 0 auto; padding: 0 18px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.topnav-brand { display: flex; align-items: center; gap: 9px; text-decoration: none; color: var(--ink); }
.topnav-logo { width: 30px; height: 30px; border-radius: 8px; background: #fff; object-fit: contain; padding: 3px; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
[data-theme="dark"] .topnav-logo { background: rgba(255,255,255,0.9); }
.topnav-name { font-weight: 800; font-size: 15px; letter-spacing: 2px; }
.topnav-tag { font-size: 10px; font-family: var(--mono); color: var(--primary-dark); background: var(--surface-2); border: 1px solid var(--tech-line); padding: 2px 7px; border-radius: 999px; letter-spacing: 0.5px; }
.topnav-actions { display: flex; align-items: center; gap: 10px; }
.topnav-link { font-size: 13px; color: var(--text-secondary); text-decoration: none; font-weight: 600; transition: .2s; white-space: nowrap; }
.topnav-link:hover { color: var(--primary-dark); }
[data-theme="dark"] .topnav-link:hover { color: var(--primary); }
.theme-toggle { width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--tech-line); background: var(--surface); color: var(--ink); cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 16px; transition: .2s; }
.theme-toggle:hover { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,163,168,0.15); }
[data-theme="dark"] .theme-toggle { box-shadow: 0 0 12px rgba(45,212,191,0.35); }
[data-theme="dark"] .theme-toggle:hover { box-shadow: 0 0 16px rgba(45,212,191,0.55); }

/* ===== 顶部品牌栏（科技感渐变 + 网格 + 辉光） ===== */
.topbar {
  position: relative; overflow: hidden;
  background: linear-gradient(125deg, #0A4A50 0%, var(--primary-dark) 45%, #16A3A8 100%);
  background-size: 220% 220%;
  animation: shimmer 14s ease infinite;
  color: #fff; padding: 26px 16px 30px;
  box-shadow: 0 10px 34px rgba(8, 60, 66, 0.32);
}
[data-theme="dark"] .topbar { border-bottom: 1px solid rgba(45, 212, 191, 0.2); }
.topbar::before {
  content: ''; position: absolute; inset: 0; opacity: 0.10;
  background-image:
    linear-gradient(rgba(255,255,255,0.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.6) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: linear-gradient(180deg, #000, transparent 70%);
  mask-image: linear-gradient(180deg, #000, transparent 70%);
}
.topbar::after {
  content: ''; position: absolute; top: 0; left: -60%; width: 50%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.16), transparent);
  transform: skewX(-20deg); animation: sweep 7s ease-in-out infinite; z-index: 0;
}
.topbar-inner { max-width: 1280px; margin: 0 auto; position: relative; z-index: 1; }
.header-top { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; flex-wrap: wrap; }
.logo {
  width: 54px; height: 54px; border-radius: 14px; background: rgba(255,255,255,0.95); object-fit: contain;
  padding: 5px; box-shadow: 0 4px 16px rgba(0,0,0,0.22), 0 0 0 1px rgba(255,255,255,0.25) inset;
  animation: breathe 3.4s ease-in-out infinite;
}
@keyframes breathe { 0%,100% { transform: scale(1); box-shadow: 0 4px 16px rgba(0,0,0,0.22), 0 0 0 1px rgba(255,255,255,0.25) inset; } 50% { transform: scale(1.05); box-shadow: 0 6px 22px rgba(0,0,0,0.3), 0 0 18px rgba(22,163,168,0.5); } }
.brand-title h1 { margin: 0; font-size: 22px; font-weight: 800; letter-spacing: 3px; }
.brand-title p { margin: 2px 0 0; font-size: 13px; opacity: 0.9; letter-spacing: 1px; }
.brand-badge {
  margin-left: auto; font-size: 12px; padding: 7px 15px; border-radius: 999px;
  font-family: var(--mono); letter-spacing: 0.5px;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(4px); white-space: nowrap;
}
.header-slogan { font-size: 13px; opacity: 0.92; line-height: 1.6; max-width: 760px; letter-spacing: 0.3px; }

/* ===== 主体布局 ===== */
.layout { max-width: 540px; margin: 0 auto; padding: 18px 16px 100px; }
.bxz-main, .bxz-side { width: 100%; }

/* ===== 玻璃拟态卡片 + 精密描边 ===== */
.card {
  position: relative;
  background: var(--card-bg); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 18px; margin-bottom: 16px; box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease;
  animation: riseIn .6s ease both;
}
.card::before {
  content: ''; position: absolute; left: 22px; right: 22px; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0.55; border-radius: 2px;
}
.bxz-main .card:nth-child(1) { animation-delay: .05s; }
.bxz-main .card:nth-child(2) { animation-delay: .12s; }
.bxz-main .card:nth-child(3) { animation-delay: .19s; }
.bxz-side .card:nth-child(1) { animation-delay: .10s; }
.bxz-side .card:nth-child(2) { animation-delay: .18s; }
@keyframes riseIn { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.card-title { font-size: 16px; font-weight: 700; color: var(--ink); margin: 0 0 14px; display: flex; align-items: center; gap: 10px; letter-spacing: 0.5px; }
.card-title .icon {
  font-size: 16px; background: var(--surface-2);
  border: 1px solid var(--tech-line); border-radius: 9px; padding: 4px 7px; line-height: 1;
}

/* 产品选择：带细边框的方块矩阵（参数面板风） */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.product-item {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 1 / 0.92;
  padding: 14px 10px; border-radius: 14px; cursor: pointer;
  border: 1px solid var(--tech-line); background: var(--chip);
  font-size: 14px; font-weight: 700; color: var(--text); transition: all .2s;
  letter-spacing: 1px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.35), 0 1px 3px rgba(13,115,119,0.06);
}
.product-item::before {
  content: ''; position: absolute; top: 10px; left: 12px; width: 5px; height: 5px;
  border-radius: 50%; background: var(--primary); opacity: 0.5; transition: .2s;
}
.product-item:hover { transform: translateY(-2px); border-color: var(--primary); color: var(--primary-dark); box-shadow: 0 6px 16px rgba(22,163,168,0.16); }
.product-item.active {
  border-color: transparent; color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  box-shadow: 0 6px 18px rgba(22,163,168,0.34);
}
.product-item.active::before { opacity: 0; }
.product-item .check {
  position: absolute; top: 8px; right: 8px;
  width: 18px; height: 18px; border-radius: 6px;
  background: rgba(22,163,168,0.18); color: var(--primary-dark);
  font-size: 11px; display: none; align-items: center; justify-content: center; font-weight: 700;
}
[data-theme="dark"] .product-item .check { background: rgba(45,212,191,0.18); color: var(--primary); }
.product-item.active .check { display: inline-flex; background: rgba(255,255,255,0.28); color: #fff; }
.product-item .p-name { letter-spacing: 1px; }
[data-theme="dark"] .product-item.active {
  background: linear-gradient(135deg, #2DD4BF 0%, #0D7377 100%);
  box-shadow: 0 0 0 1px rgba(45,212,191,0.5), 0 6px 22px rgba(45,212,191,0.45);
}

/* 热点区 */
.hot-list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.hot-tag {
  background: var(--surface-2); color: var(--primary-dark); border: 1px solid var(--border);
  padding: 6px 13px; border-radius: 999px; font-size: 12px; cursor: pointer; transition: .2s; font-weight: 500;
}
[data-theme="dark"] .hot-tag { color: var(--primary); }
.hot-tag:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(22,163,168,0.16); }
.hot-tag.active { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; border-color: transparent; box-shadow: 0 4px 12px rgba(22,163,168,0.3); }
[data-theme="dark"] .hot-tag.active { background: linear-gradient(135deg, #2DD4BF, #0D7377); box-shadow: 0 0 0 1px rgba(45,212,191,0.5), 0 4px 14px rgba(45,212,191,0.4); }
.hot-input { width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; font-size: 14px; outline: none; background: var(--surface); color: var(--text); transition: .2s; }
.hot-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,163,168,0.12); }

/* 参数面板 */
.form-row { margin-bottom: 16px; }
.form-label { font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; display: block; letter-spacing: 0.5px; }
.platform-options, .audience-options { display: flex; flex-wrap: wrap; gap: 10px; }

/* 文案体裁下拉（科技风自定义箭头） */
.genre-select {
  width: 100%; padding: 13px 42px 13px 14px; font-size: 14px; font-family: inherit; font-weight: 600;
  color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  outline: none; cursor: pointer; transition: .2s; letter-spacing: 0.5px;
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--primary-dark) 50%), linear-gradient(135deg, var(--primary-dark) 50%, transparent 50%);
  background-position: right 18px center, right 13px center;
  background-size: 6px 6px, 6px 6px; background-repeat: no-repeat;
}
[data-theme="dark"] .genre-select { color: var(--text); background-image: linear-gradient(45deg, transparent 50%, var(--primary) 50%), linear-gradient(135deg, var(--primary) 50%, transparent 50%); }
.genre-select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,163,168,0.14); }
.genre-select:hover { border-color: var(--primary); transform: translateY(-1px); }
[data-theme="dark"] .genre-select:focus { box-shadow: 0 0 0 3px rgba(45,212,191,0.18); }
.genre-select option { color: #1F2937; background: #fff; }

/* 文案卡片顶部：体裁分类标签 */
.copy-genre {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: 0.4px;
  color: #fff; padding: 5px 12px; border-radius: 999px; margin-bottom: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  box-shadow: 0 4px 12px rgba(22,163,168,0.28);
  border: 1px solid rgba(255,255,255,0.25);
}
[data-theme="dark"] .copy-genre {
  background: linear-gradient(135deg, #2DD4BF, #0D7377);
  box-shadow: 0 0 0 1px rgba(45,212,191,0.45), 0 4px 16px rgba(45,212,191,0.42);
}
.copy-card { position: relative; }
.copy-card .copy-genre::before { content: '🏷️'; font-size: 11px; }

/* 爆款结构化生成开关（单选） */
.struct-options { display: flex; gap: 10px; }
.struct-opt {
  flex: 1; text-align: center; padding: 10px 8px; border: 1px solid var(--tech-line);
  border-radius: 12px; font-size: 13px; cursor: pointer; background: var(--surface);
  color: var(--text); transition: .2s; font-weight: 600;
}
.struct-opt:hover { transform: translateY(-2px); border-color: var(--primary); color: var(--primary-dark); }
[data-theme="dark"] .struct-opt:hover { color: var(--primary); }
.struct-opt.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff;
  border-color: transparent; box-shadow: 0 6px 16px rgba(22,163,168,0.28);
}
[data-theme="dark"] .struct-opt.active { background: linear-gradient(135deg, #2DD4BF, #0D7377); box-shadow: 0 0 0 1px rgba(45,212,191,0.5), 0 6px 18px rgba(45,212,191,0.4); }
.struct-opt.disabled { opacity: .42; cursor: not-allowed; }
.struct-opt.disabled:hover { transform: none; border-color: var(--tech-line); color: var(--text); }
.struct-hint { font-size: 11px; color: var(--text-secondary); margin-top: 8px; line-height: 1.5; letter-spacing: 0.2px; }

/* 文案顶部双徽章：结构标识 + 体裁分类 */
.copy-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; align-items: center; }
.copy-badges .copy-genre { margin-bottom: 0; }
.copy-struct {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: 0.4px;
  padding: 5px 12px; border-radius: 999px; border: 1px solid transparent;
}
.copy-struct.on {
  color: #fff; background: linear-gradient(135deg, #F59E0B, #EA580C);
  box-shadow: 0 4px 12px rgba(234,88,12,0.30);
}
.copy-struct.on::before { content: '🔥'; font-size: 11px; }
.copy-struct.off {
  color: var(--text-secondary); background: var(--surface-2); border-color: var(--tech-line);
}
.copy-struct.off::before { content: '📄'; font-size: 11px; }
[data-theme="dark"] .copy-struct.on { box-shadow: 0 0 0 1px rgba(245,158,11,0.5), 0 4px 16px rgba(234,88,12,0.4); }

/* 5段黄金结构：分段块 + 灰色段签 */
.copy-body .seg { margin-bottom: 12px; padding-left: 12px; border-left: 2px solid var(--tech-line); }
.copy-body .seg:last-child { margin-bottom: 0; }
.seg-label {
  display: inline-block; font-family: var(--mono); font-size: 11px; font-weight: 700;
  color: var(--text-secondary); background: var(--surface-2); border: 1px solid var(--tech-line);
  padding: 2px 9px; border-radius: 6px; margin-bottom: 6px; letter-spacing: 0.5px;
}
[data-theme="dark"] .seg-label { color: var(--primary); }
.seg-body { font-size: 14px; line-height: 1.85; }
.is-struct .copy-body { white-space: normal; }

.opt {
  flex: 1; min-width: 70px; text-align: center; padding: 10px 8px; border: 1px solid var(--tech-line);
  border-radius: 12px; font-size: 13px; cursor: pointer; background: var(--surface); color: var(--text); transition: .2s; font-weight: 500;
}
.opt:hover { transform: translateY(-2px); border-color: var(--primary); color: var(--primary-dark); }
[data-theme="dark"] .opt:hover { color: var(--primary); }
.opt.active { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; border-color: transparent; font-weight: 700; box-shadow: 0 6px 16px rgba(22,163,168,0.28); }
[data-theme="dark"] .opt.active { background: linear-gradient(135deg, #2DD4BF, #0D7377); box-shadow: 0 0 0 1px rgba(45,212,191,0.5), 0 6px 18px rgba(45,212,191,0.4); }
.count-input { width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; font-size: 14px; background: var(--surface); color: var(--text); }
.count-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(22,163,168,0.12); outline: none; }
.range-wrap { display: flex; align-items: center; gap: 12px; }
.range-wrap input[type=range] { flex: 1; accent-color: var(--primary); }
.fusion-label { font-size: 13px; color: var(--primary-dark); font-weight: 700; min-width: 56px; font-family: var(--mono); }
[data-theme="dark"] .fusion-label { color: var(--primary); }

/* 合规提示行 */
.compliance-row { display: flex; align-items: center; gap: 12px; background: linear-gradient(135deg, rgba(16,185,129,0.10), rgba(22,163,168,0.08)); border: 1px solid rgba(16,185,129,0.28); border-radius: 14px; padding: 12px 14px; margin-bottom: 0; }
.shield { font-size: 22px; animation: shieldPulse 2.6s ease-in-out infinite; }
@keyframes shieldPulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.12); } }
.compliance-title { font-size: 13px; font-weight: 700; color: var(--primary-dark); }
[data-theme="dark"] .compliance-title { color: var(--primary); }
.compliance-sub { font-size: 11px; color: var(--text-secondary); margin-top: 2px; }

/* 生成按钮 */
.generate-btn {
  position: relative; width: 100%; padding: 16px; border: none; border-radius: 14px; overflow: hidden;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff; font-size: 17px; font-weight: 700; cursor: pointer; letter-spacing: 1.5px;
  box-shadow: 0 8px 26px rgba(22,163,168,0.4); transition: transform .2s, box-shadow .2s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  animation: btnGlow 2.8s ease-in-out infinite;
}
[data-theme="dark"] .generate-btn { box-shadow: 0 8px 30px rgba(45,212,191,0.5); animation: btnGlowDark 2.8s ease-in-out infinite; }
@keyframes btnGlow {
  0%,100% { box-shadow: 0 8px 26px rgba(22,163,168,0.4); }
  50% { box-shadow: 0 8px 40px rgba(22,163,168,0.7); }
}
@keyframes btnGlowDark {
  0%,100% { box-shadow: 0 8px 26px rgba(45,212,191,0.4); }
  50% { box-shadow: 0 8px 44px rgba(45,212,191,0.75); }
}
.generate-btn:hover { transform: translateY(-2px) scale(1.01); }
.generate-btn:active { transform: translateY(1px) scale(0.99); }
.generate-btn:disabled { opacity: .75; cursor: not-allowed; animation: none; }
.btn-glow { position: absolute; top: 0; left: -40%; width: 40%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.45), transparent);
  transform: skewX(-20deg); animation: btnSweep 3.2s ease-in-out infinite; }
@keyframes btnSweep { 0% { left: -40%; } 60%,100% { left: 130%; } }

/* 文案结果 */
.copy-card {
  background: var(--copy-bg); border-radius: 14px; padding: 16px; margin-bottom: 12px;
  border: 1px solid var(--border); box-shadow: 0 2px 10px rgba(13,115,119,0.06);
  animation: cardIn .45s cubic-bezier(.22,.9,.3,1) both; transition: transform .2s, box-shadow .2s;
}
[data-theme="dark"] .copy-card { box-shadow: 0 2px 12px rgba(0,0,0,0.35); }
.copy-card:hover { transform: translateY(-3px); box-shadow: 0 10px 26px rgba(13,115,119,0.16); }
[data-theme="dark"] .copy-card:hover { box-shadow: 0 10px 28px rgba(0,0,0,0.5); }
.copy-card:nth-child(1) { animation-delay: .02s; }
.copy-card:nth-child(2) { animation-delay: .08s; }
.copy-card:nth-child(3) { animation-delay: .14s; }
.copy-card:nth-child(4) { animation-delay: .20s; }
.copy-card:nth-child(5) { animation-delay: .26s; }
.copy-card:nth-child(n+6) { animation-delay: .30s; }
@keyframes cardIn { from { opacity: 0; transform: translateY(18px) scale(.97); } to { opacity: 1; transform: none; } }
.copy-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 10px; gap: 10px; }
.copy-title { font-weight: 700; color: var(--ink); font-size: 15px; }
.copy-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.copy-tag { background: var(--surface-2); color: var(--primary); font-size: 11px; padding: 3px 9px; border-radius: 999px; font-family: var(--mono); }
.copy-body { font-size: 14px; color: var(--text); line-height: 1.85; margin-bottom: 12px; white-space: pre-wrap; }
.copy-body .highlight { color: var(--primary-dark); font-weight: 700; background: linear-gradient(180deg, transparent 60%, rgba(22,163,168,0.22) 60%); padding: 0 2px; border-radius: 3px; }
[data-theme="dark"] .copy-body .highlight { color: var(--primary); background: linear-gradient(180deg, transparent 60%, rgba(45,212,191,0.22) 60%); }
.copy-disclaimer { font-size: 12px; color: var(--text-secondary); border-top: 1px dashed var(--border); padding-top: 10px; margin-top: 10px; }
.copy-actions { display: flex; gap: 8px; }
.copy-actions button {
  flex: 1; padding: 9px 0; border-radius: 10px; border: 1px solid var(--border); background: var(--surface);
  color: var(--primary-dark); font-size: 13px; font-weight: 600; cursor: pointer; transition: .2s;
}
[data-theme="dark"] .copy-actions button { color: var(--primary); }
.copy-actions button:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(22,163,168,0.18); }
.copy-actions button.primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; border-color: transparent; }
[data-theme="dark"] .copy-actions button.primary { background: linear-gradient(135deg, #2DD4BF, #0D7377); }

/* 批量操作 */
.batch-bar { display: flex; gap: 10px; margin: 16px 0; position: sticky; top: calc(var(--nav-h) + 8px); z-index: 10; }
.batch-bar button { flex: 1; padding: 12px; border-radius: 12px; border: none; background: var(--surface-2); color: var(--primary-dark); font-weight: 700; cursor: pointer; transition: .2s; }
[data-theme="dark"] .batch-bar button { color: var(--primary); }
.batch-bar button:hover { transform: translateY(-2px); box-shadow: 0 6px 16px rgba(22,163,168,0.2); }

/* 历史记录 */
.history-item { padding: 14px; border-bottom: 1px solid var(--border); cursor: pointer; transition: background .2s; }
.history-item:hover { background: rgba(22,163,168,0.06); }
[data-theme="dark"] .history-item:hover { background: rgba(45,212,191,0.08); }
.history-item:last-child { border-bottom: none; }
.history-meta { font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; font-family: var(--mono); }
.history-preview { font-size: 13px; color: var(--text); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 底部合规提示 */
.footer-note {
  position: fixed; bottom: 0; left: 0; right: 0; background: var(--footer-bg); backdrop-filter: blur(8px);
  border-top: 1px solid var(--border); padding: 10px 16px; font-size: 11px;
  color: var(--text-secondary); text-align: center; z-index: 100;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.05);
}
[data-theme="dark"] .footer-note { box-shadow: 0 -4px 20px rgba(0,0,0,0.5); }

/* Toast */
.toast { position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); background: rgba(8,38,43,0.92); color: #fff; padding: 14px 24px; border-radius: 12px; font-size: 14px; z-index: 200; display: none; box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.toast.show { display: block; animation: toastIn .25s ease; }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, -42%); } to { opacity: 1; transform: translate(-50%, -50%); } }

/* 加载动画 */
.spinner { display: inline-block; width: 18px; height: 18px; border: 2px solid rgba(255,255,255,0.4); border-top-color: #fff; border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 空态 */
.empty { text-align: center; padding: 30px 0; color: var(--text-secondary); font-size: 13px; }
.empty-icon { font-size: 40px; margin-bottom: 10px; animation: floaty 3s ease-in-out infinite; }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

/* 后台入口 */
.admin-entry { text-align: center; padding: 12px; }
.admin-entry a { color: var(--primary-dark); font-size: 13px; text-decoration: none; font-weight: 700; transition: .2s; letter-spacing: 0.5px; }
.admin-entry a:hover { color: var(--primary); letter-spacing: 1px; }

/* ============================================================
   桌面版：宽屏双栏大气布局（手机版维持上方窄栏）
   ============================================================ */
@media (min-width: 980px) {
  .topbar { padding: 34px 24px 38px; border-radius: 0 0 28px 28px; }
  .brand-title h1 { font-size: 26px; letter-spacing: 4px; }
  .brand-badge { font-size: 13px; padding: 8px 18px; }
  .header-slogan { font-size: 15px; }

  .layout {
    display: grid;
    grid-template-columns: 400px minmax(0, 1fr);
    gap: 32px;
    max-width: 1280px;
    padding: 34px 24px 96px;
    align-items: start;
  }
  .bxz-main { width: auto; }
  .bxz-side { width: auto; min-width: 0; }

  .card { padding: 26px 28px; margin-bottom: 22px; border-radius: 20px; }
  .card-title { font-size: 18px; margin-bottom: 18px; }

  /* 左侧产品：方块矩阵 3 列，更像参数面板 */
  .product-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .product-item { font-size: 15px; border-radius: 14px; }

  .opt { min-width: 88px; padding: 12px 10px; font-size: 14px; border-radius: 14px; }
  .form-row { margin-bottom: 20px; }
  .form-label { font-size: 14px; margin-bottom: 10px; }
  .hot-input, .count-input { padding: 14px 16px; font-size: 15px; border-radius: 14px; }
  .genre-select { padding: 15px 46px 15px 16px; font-size: 15px; border-radius: 14px; }
  .hot-tag { padding: 8px 16px; font-size: 13px; border-radius: 999px; }
  .copy-genre { font-size: 13px; padding: 6px 14px; margin-bottom: 14px; }

  .generate-btn { font-size: 19px; padding: 20px; border-radius: 16px; }

  #copiesWrap { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  #copiesWrap .empty { grid-column: 1 / -1; padding: 60px 0; }
  .copy-card { padding: 22px; border-radius: 18px; margin-bottom: 0; }
  .copy-title { font-size: 16px; }
  .copy-body { font-size: 15px; line-height: 1.9; }
  .copy-actions button { padding: 11px 0; font-size: 14px; }

  .history-item { padding: 18px; }
  .history-preview { font-size: 14px; }
  .admin-entry { padding: 18px; }
  .admin-entry a { font-size: 14px; }
  .footer-note { font-size: 12px; padding: 12px 24px; }
  .leaf { opacity: 0.5; }
}

@media (min-width: 1500px) {
  .layout { max-width: 1440px; gap: 40px; }
  #copiesWrap { grid-template-columns: 1fr 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto; }
}

/* ============ 导潮Agents人设专家 悬浮对话智能体 ============ */
.agent-fab {
  position: fixed; right: 20px; bottom: 24px; z-index: 9999;
  width: 64px; height: 64px; border-radius: 50%; border: 2px solid #fff; cursor: pointer;
  background: #fff; overflow: hidden; padding: 0;
  box-shadow: 0 8px 26px rgba(13,148,136,0.45);
  transition: transform .2s ease, box-shadow .2s ease;
}
.agent-fab:hover { transform: translateY(-3px) scale(1.04); box-shadow: 0 12px 32px rgba(13,148,136,0.6); }
.agent-fab-avatar { width: 100%; height: 100%; object-fit: contain; display: block; background: #fff; }
.agent-fab-label {
  position: absolute; left: 50%; bottom: -22px; transform: translateX(-50%);
  white-space: nowrap; font-size: 10px; font-weight: 700; letter-spacing: .3px;
  background: rgba(255,255,255,0.95); color: var(--primary-dark);
  padding: 3px 8px; border-radius: 999px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}
.agent-fab.hidden { display: none; }

.agent-panel {
  position: fixed; right: 20px; bottom: 100px; z-index: 10000;
  width: 380px; max-width: calc(100vw - 28px); height: 560px; max-height: calc(100vh - 130px);
  background: var(--surface, #fff); border-radius: 18px; overflow: hidden;
  display: flex; flex-direction: column;
  box-shadow: 0 18px 60px rgba(8,38,43,0.32), 0 0 0 1px rgba(13,148,136,0.18);
  border: 1px solid var(--tech-line, rgba(45,212,191,0.25));
  animation: agentPop .22s ease;
}
@keyframes agentPop { from { opacity: 0; transform: translateY(14px) scale(.97); } to { opacity: 1; transform: none; } }
.agent-panel.dragging { user-select: none; }

.agent-header {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px; cursor: move;
  background: linear-gradient(135deg, rgba(13,148,136,0.12), rgba(45,212,191,0.16));
  border-bottom: 1px solid var(--tech-line, rgba(45,212,191,0.2));
}
.agent-head-avatar { width: 40px; height: 40px; border-radius: 50%; overflow: hidden; background: #fff; flex: 0 0 auto; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
.agent-head-avatar img { width: 100%; height: 100%; object-fit: contain; display: block; }
.agent-head-meta { flex: 1 1 auto; min-width: 0; }
.agent-head-name { font-weight: 800; font-size: 14px; color: var(--ink); }
.agent-head-intro { font-size: 11px; color: var(--muted, #6b7280); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.agent-icon-btn {
  flex: 0 0 auto; width: 30px; height: 30px; border-radius: 8px; border: none; cursor: pointer;
  background: rgba(255,255,255,0.7); color: var(--ink); font-size: 16px; line-height: 1; transition: background .15s;
}
.agent-icon-btn:hover { background: rgba(13,148,136,0.18); }

.agent-body { flex: 1 1 auto; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 12px; background: var(--surface-2, #f6fafb); }
.agent-msg { display: flex; gap: 8px; max-width: 92%; }
.agent-msg .a-avatar { width: 30px; height: 30px; border-radius: 50%; overflow: hidden; background: #fff; flex: 0 0 auto; object-fit: contain; }
.agent-msg .a-bubble {
  padding: 9px 12px; border-radius: 14px; font-size: 13px; line-height: 1.6; word-break: break-word; white-space: pre-wrap; position: relative;
}
.agent-msg.user { align-self: flex-end; flex-direction: row-reverse; }
.agent-msg.user .a-bubble { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: #fff; border-bottom-right-radius: 4px; }
.agent-msg.bot { align-self: flex-start; }
.agent-msg.bot .a-bubble { background: var(--surface, #fff); color: var(--ink); border: 1px solid var(--tech-line, rgba(45,212,191,0.25)); border-bottom-left-radius: 4px; }
.agent-msg.bot .a-copy { display: inline-block; margin-top: 6px; font-size: 11px; color: var(--primary-dark); cursor: pointer; border: none; background: none; padding: 0; }
.agent-msg.bot .a-copy:hover { text-decoration: underline; }
.agent-typing .a-bubble { color: var(--muted, #6b7280); font-style: italic; }
.agent-collapse-btn { font-size: 11px; color: var(--primary-dark); cursor: pointer; background: none; border: none; padding: 4px 0 0; }

.agent-quick { display: flex; flex-wrap: wrap; gap: 7px; padding: 10px 14px 4px; border-top: 1px solid var(--tech-line, rgba(45,212,191,0.18)); background: var(--surface, #fff); }
.agent-quick .q-chip {
  font-size: 12px; padding: 6px 11px; border-radius: 999px; cursor: pointer; line-height: 1.3;
  background: rgba(13,148,136,0.08); color: var(--primary-dark); border: 1px solid var(--tech-line, rgba(45,212,191,0.3)); transition: background .15s;
}
.agent-quick .q-chip:hover { background: rgba(13,148,136,0.18); }
.agent-quick.hidden { display: none; }

.agent-input-wrap { display: flex; gap: 8px; padding: 10px 14px 12px; border-top: 1px solid var(--tech-line, rgba(45,212,191,0.18)); background: var(--surface, #fff); }
.agent-input-wrap textarea {
  flex: 1 1 auto; resize: none; border-radius: 12px; border: 1px solid var(--tech-line, rgba(45,212,191,0.3));
  padding: 9px 12px; font-size: 13px; font-family: inherit; color: var(--ink); background: var(--surface-2, #f6fafb); outline: none;
}
.agent-input-wrap textarea:focus { border-color: var(--primary); }
.agent-send {
  flex: 0 0 auto; align-self: stretch; padding: 0 16px; border: none; border-radius: 12px; cursor: pointer; font-weight: 700; font-size: 13px; color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}
.agent-send:disabled { opacity: .55; cursor: default; }
.agent-foot { font-size: 10px; color: var(--muted, #9ca3af); text-align: center; padding: 6px 12px 8px; background: var(--surface, #fff); }

[data-theme="dark"] .agent-panel { background: #08323a; border-color: rgba(45,212,191,0.35); }
[data-theme="dark"] .agent-body { background: #06262c; }
[data-theme="dark"] .agent-head-intro { color: #9fd9d0; }
[data-theme="dark"] .agent-quick, [data-theme="dark"] .agent-input-wrap, [data-theme="dark"] .agent-foot { background: #08323a; }
[data-theme="dark"] .agent-msg.bot .a-bubble { background: #0c3d46; border-color: rgba(45,212,191,0.4); }
[data-theme="dark"] .agent-icon-btn { background: rgba(255,255,255,0.12); color: #e6fffb; }

@media (max-width: 600px) {
  .agent-panel { right: 12px; left: 12px; bottom: 84px; width: auto; max-width: none; height: 70vh; }
  .agent-fab { right: 14px; bottom: 16px; width: 58px; height: 58px; }
}