/* ============================================
   AI论文助手 — 论文生成页 全新设计 v3
   排版：顶部Hero + 横向参数卡片 + 全宽输出区
   兼容：百度APP WebKit 537.36 / Chrome 97
   注意：全部使用 margin 替代 gap，不使用 accent-color
   ============================================ */

/* ---- 背景 ---- */
.paper-page { background: #06061a; min-height: 100vh; }
.pp-bg { position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.pp-orb { position: absolute; border-radius: 50%; -webkit-filter: blur(80px); filter: blur(80px); opacity: .55; }
.pp-orb1 { width: 600px; height: 600px; background: radial-gradient(circle, rgba(124,58,237,.5), transparent 70%); top: -200px; left: -100px; }
.pp-orb2 { width: 500px; height: 500px; background: radial-gradient(circle, rgba(37,99,235,.4), transparent 70%); top: 100px; right: -150px; }
.pp-grid { position: absolute; top:0; right:0; bottom:0; left:0; background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: 60px 60px; }

/* ---- Hero区 ---- */
.pp-hero { position: relative; z-index: 1; text-align: center; padding: 110px 24px 40px; }
.pp-hero-badge { display: -webkit-inline-box; display: -webkit-inline-flex; display: inline-flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; background: rgba(124,58,237,.15); border: 1px solid rgba(124,58,237,.3); color: rgba(167,139,250,.9); font-size: 13px; padding: 6px 16px; border-radius: 20px; margin-bottom: 20px; }
.pp-hero-badge .pp-badge-dot { margin-right: 8px; }
.pp-badge-dot { width: 6px; height: 6px; background: #a78bfa; border-radius: 50%; -webkit-animation: pulse 2s infinite; animation: pulse 2s infinite; display: inline-block; vertical-align: middle; }
@-webkit-keyframes pulse { 0%,100%{opacity:1;-webkit-transform:scale(1);transform:scale(1)} 50%{opacity:.5;-webkit-transform:scale(1.3);transform:scale(1.3)} }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.3)} }
.pp-hero-title { font-size: 48px; font-weight: 800; color: #fff; line-height: 1.15; margin-bottom: 16px; letter-spacing: -1px; }
.pp-hl { background: -webkit-linear-gradient(135deg, #a78bfa, #60a5fa); background: linear-gradient(135deg, #a78bfa, #60a5fa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.pp-hero-sub { font-size: 16px; color: rgba(255,255,255,.55); max-width: 560px; margin: 0 auto 28px; line-height: 1.7; }
.pp-badges { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-pack: center; -webkit-justify-content: center; justify-content: center; -webkit-flex-wrap: wrap; flex-wrap: wrap; margin-left: -5px; margin-right: -5px; }
.pp-feat { display: -webkit-inline-box; display: -webkit-inline-flex; display: inline-flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; background: rgba(16,185,129,.1); border: 1px solid rgba(16,185,129,.2); color: rgba(52,211,153,.9); font-size: 13px; padding: 5px 14px; border-radius: 20px; margin: 5px; }
.pp-feat svg { width: 14px; height: 14px; -webkit-flex-shrink: 0; flex-shrink: 0; margin-right: 5px; }

/* ---- 参数卡片 ---- */
.pp-config-wrap { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; padding: 0 24px 32px; }
.pp-config-card { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); border-radius: 20px; padding: 32px 36px; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); box-shadow: 0 20px 60px rgba(0,0,0,.4); }

/* 主题行 */
.pp-config-topic { margin-bottom: 20px; }
.pp-label { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; font-size: 13px; color: rgba(255,255,255,.5); margin-bottom: 8px; font-weight: 500; }
.pp-label svg { width: 16px; height: 16px; margin-right: 6px; }
.pp-req { font-size: 11px; background: rgba(239,68,68,.15); color: #f87171; border: 1px solid rgba(239,68,68,.2); padding: 1px 7px; border-radius: 4px; margin-left: 4px; }
.pp-opt { font-size: 11px; color: rgba(255,255,255,.3); margin-left: 4px; }
.pp-input-topic { width: 100%; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: 12px; padding: 14px 18px; color: #fff; font-size: 16px; outline: none; -webkit-transition: border-color .2s, box-shadow .2s; transition: border-color .2s, box-shadow .2s; -webkit-box-sizing: border-box; box-sizing: border-box; }
.pp-input-topic:focus { border-color: rgba(124,58,237,.6); box-shadow: 0 0 0 3px rgba(124,58,237,.15); }
.pp-input-topic::-webkit-input-placeholder { color: rgba(255,255,255,.25); }

/* 参数行 */
.pp-config-row { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-flex-wrap: wrap; flex-wrap: wrap; margin-left: -8px; margin-right: -8px; margin-bottom: 24px; }
.pp-config-item { -webkit-box-flex: 1; -webkit-flex: 1 1 160px; flex: 1 1 160px; min-width: 140px; padding-left: 8px; padding-right: 8px; -webkit-box-sizing: border-box; box-sizing: border-box; }
.pp-config-kw { -webkit-box-flex: 2; -webkit-flex: 2 1 220px; flex: 2 1 220px; }
.pp-config-req { -webkit-box-flex: 2; -webkit-flex: 2 1 220px; flex: 2 1 220px; }
.pp-sel-wrap { position: relative; }
.pp-select { width: 100%; background: #1e1b4b; border: 1px solid rgba(255,255,255,.15); border-radius: 10px; padding: 11px 36px 11px 14px; color: #fff; font-size: 14px; outline: none; -webkit-appearance: none; appearance: none; cursor: pointer; -webkit-box-sizing: border-box; box-sizing: border-box; -webkit-transition: border-color .2s; transition: border-color .2s; }
.pp-select:focus { border-color: rgba(124,58,237,.5); }
.pp-select option { background: #1e1b4b; color: #fff; }
.pp-sel-wrap::after { content: ''; position: absolute; right: 12px; top: 50%; -webkit-transform: translateY(-50%); transform: translateY(-50%); border: 4px solid transparent; border-top-color: rgba(255,255,255,.4); margin-top: 2px; pointer-events: none; }
.pp-input { width: 100%; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: 10px; padding: 11px 14px; color: #fff; font-size: 14px; outline: none; -webkit-transition: border-color .2s, box-shadow .2s; transition: border-color .2s, box-shadow .2s; -webkit-box-sizing: border-box; box-sizing: border-box; }
.pp-input:focus { border-color: rgba(124,58,237,.5); box-shadow: 0 0 0 3px rgba(124,58,237,.1); }
.pp-input::-webkit-input-placeholder { color: rgba(255,255,255,.25); }

/* 生成按钮行 */
.pp-config-action { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; }
.pp-gen-btn { display: -webkit-inline-box; display: -webkit-inline-flex; display: inline-flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; padding: 15px 48px; background: -webkit-linear-gradient(135deg, #7C3AED, #2563EB); background: linear-gradient(135deg, #7C3AED, #2563EB); color: #fff; border: none; border-radius: 14px; font-size: 17px; font-weight: 700; cursor: pointer; -webkit-transition: opacity .2s, -webkit-transform .15s; transition: opacity .2s, transform .15s; box-shadow: 0 8px 32px rgba(124,58,237,.4); letter-spacing: .3px; }
.pp-gen-btn svg { width: 18px; height: 18px; margin-right: 10px; }
.pp-gen-btn:hover { opacity: .9; -webkit-transform: translateY(-1px); transform: translateY(-1px); }
.pp-gen-btn:active { -webkit-transform: translateY(0); transform: translateY(0); }
.pp-gen-btn:disabled { opacity: .5; cursor: not-allowed; -webkit-transform: none; transform: none; }
.pp-gen-tip { font-size: 13px; color: rgba(255,255,255,.35); margin-left: 20px; }

/* ---- 输出区 ---- */
.pp-output-wrap { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; padding: 0 24px 60px; }

/* 空状态 */
.pp-empty { text-align: center; padding: 60px 24px 80px; }
.pp-empty-visual { position: relative; width: 120px; height: 120px; margin: 0 auto 32px; }
.pp-empty-rings { position: absolute; top:0; right:0; bottom:0; left:0; }
.pp-ring { position: absolute; border-radius: 50%; border: 1px solid rgba(124,58,237,.2); -webkit-animation: ringPulse 3s ease-in-out infinite; animation: ringPulse 3s ease-in-out infinite; }
.pp-ring1 { top:0; right:0; bottom:0; left:0; -webkit-animation-delay: 0s; animation-delay: 0s; }
.pp-ring2 { top:-16px; right:-16px; bottom:-16px; left:-16px; -webkit-animation-delay: .6s; animation-delay: .6s; opacity: .6; }
.pp-ring3 { top:-32px; right:-32px; bottom:-32px; left:-32px; -webkit-animation-delay: 1.2s; animation-delay: 1.2s; opacity: .3; }
@-webkit-keyframes ringPulse { 0%,100%{opacity:.3;-webkit-transform:scale(.95);transform:scale(.95)} 50%{opacity:.8;-webkit-transform:scale(1.05);transform:scale(1.05)} }
@keyframes ringPulse { 0%,100%{opacity:.3;transform:scale(.95)} 50%{opacity:.8;transform:scale(1.05)} }
.pp-empty-icon { position: relative; z-index: 1; width: 100%; height: 100%; display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; -webkit-box-pack: center; -webkit-justify-content: center; justify-content: center; }
.pp-empty-icon svg { width: 64px; height: 64px; }
.pp-empty-title { font-size: 22px; font-weight: 700; color: rgba(255,255,255,.8); margin-bottom: 10px; }
.pp-empty-desc { font-size: 15px; color: rgba(255,255,255,.4); margin-bottom: 36px; }
.pp-empty-stats { display: -webkit-inline-box; display: -webkit-inline-flex; display: inline-flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); border-radius: 16px; padding: 20px 36px; }
.pp-estat { text-align: center; padding: 0 12px; }
.pp-estat-num { display: block; font-size: 26px; font-weight: 800; background: -webkit-linear-gradient(135deg, #a78bfa, #60a5fa); background: linear-gradient(135deg, #a78bfa, #60a5fa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.pp-estat-label { font-size: 12px; color: rgba(255,255,255,.4); margin-top: 2px; }
.pp-estat-div { width: 1px; height: 36px; background: rgba(255,255,255,.1); }

/* 进度状态 */
.pp-progress { padding: 48px 0; }
.pp-prog-header { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; margin-bottom: 36px; }
.pp-prog-spinner-wrap { position: relative; width: 64px; height: 64px; -webkit-flex-shrink: 0; flex-shrink: 0; margin-right: 24px; }
.pp-prog-spinner { position: absolute; top:0; right:0; bottom:0; left:0; border-radius: 50%; border: 3px solid rgba(124,58,237,.2); border-top-color: #7C3AED; -webkit-animation: spin 1s linear infinite; animation: spin 1s linear infinite; }
.pp-prog-spinner2 { position: absolute; top:8px; right:8px; bottom:8px; left:8px; border-radius: 50%; border: 2px solid rgba(37,99,235,.2); border-bottom-color: #2563EB; -webkit-animation: spin 1.5s linear infinite reverse; animation: spin 1.5s linear infinite reverse; }
@-webkit-keyframes spin { to { -webkit-transform: rotate(360deg); transform: rotate(360deg); } }
@keyframes spin { to { transform: rotate(360deg); } }
.pp-prog-title { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.pp-prog-sub { font-size: 14px; color: rgba(255,255,255,.45); }
.pp-prog-track-wrap { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; margin-bottom: 32px; }
.pp-prog-track { -webkit-box-flex: 1; -webkit-flex: 1; flex: 1; height: 8px; background: rgba(255,255,255,.08); border-radius: 4px; overflow: hidden; margin-right: 16px; }
.pp-prog-fill { height: 100%; background: -webkit-linear-gradient(90deg, #7C3AED, #2563EB, #06B6D4); background: linear-gradient(90deg, #7C3AED, #2563EB, #06B6D4); border-radius: 4px; width: 0%; -webkit-transition: width .4s ease; transition: width .4s ease; }
.pp-prog-pct { font-size: 14px; font-weight: 700; color: #a78bfa; min-width: 40px; text-align: right; }
.pp-prog-steps { display: -webkit-box; display: -webkit-flex; display: flex; margin-bottom: 32px; }
.pp-pstep { -webkit-box-flex: 1; -webkit-flex: 1; flex: 1; display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-orient: vertical; -webkit-box-direction: normal; -webkit-flex-direction: column; flex-direction: column; -webkit-box-align: center; -webkit-align-items: center; align-items: center; position: relative; }
.pp-pstep-dot { width: 14px; height: 14px; border-radius: 50%; background: rgba(255,255,255,.12); border: 2px solid rgba(255,255,255,.15); -webkit-transition: all .3s; transition: all .3s; z-index: 1; }
.pp-pstep-line { position: absolute; top: 6px; left: 50%; right: -50%; height: 2px; background: rgba(255,255,255,.08); z-index: 0; }
.pp-pstep:last-child .pp-pstep-line { display: none; }
.pp-pstep-label { font-size: 12px; color: rgba(255,255,255,.35); margin-top: 8px; }
.pp-pstep.on .pp-pstep-dot { background: #7C3AED; border-color: #a78bfa; box-shadow: 0 0 12px rgba(124,58,237,.6); }
.pp-pstep.on .pp-pstep-label { color: #a78bfa; }
.pp-pstep.done .pp-pstep-dot { background: #10B981; border-color: #34D399; }
.pp-pstep.done .pp-pstep-label { color: #34D399; }
.pp-prog-tips { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-flex-wrap: wrap; flex-wrap: wrap; margin-left: -8px; margin-right: -8px; }
.pp-ptip { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.07); border-radius: 12px; padding: 14px 20px; -webkit-box-flex: 1; -webkit-flex: 1 1 240px; flex: 1 1 240px; margin: 8px; }
.pp-ptip-icon { font-size: 20px; margin-right: 12px; -webkit-flex-shrink: 0; flex-shrink: 0; }
.pp-ptip-text { font-size: 14px; color: rgba(255,255,255,.5); line-height: 1.5; }

/* 结果工具栏 */
.pp-result-bar { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; -webkit-box-pack: justify; -webkit-justify-content: space-between; justify-content: space-between; padding: 16px 24px; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); border-radius: 14px 14px 0 0; margin-bottom: 0; -webkit-flex-wrap: wrap; flex-wrap: wrap; }
.pp-result-bar-left { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; margin: 4px 0; }
.pp-result-bar-left .pp-wc-tag { margin-left: 12px; }
.pp-result-bar-right { display: -webkit-box; display: -webkit-flex; display: flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; -webkit-flex-wrap: wrap; flex-wrap: wrap; margin: 4px 0; }
.pp-done-tag { display: -webkit-inline-box; display: -webkit-inline-flex; display: inline-flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; font-size: 13px; color: #34D399; font-weight: 600; }
.pp-done-tag svg { width: 16px; height: 16px; margin-right: 6px; }
.pp-wc-tag { font-size: 13px; color: rgba(255,255,255,.4); background: rgba(255,255,255,.06); padding: 3px 10px; border-radius: 6px; }
.pp-action-btn { display: -webkit-inline-box; display: -webkit-inline-flex; display: inline-flex; -webkit-box-align: center; -webkit-align-items: center; align-items: center; padding: 8px 16px; border-radius: 8px; font-size: 13px; font-weight: 500; cursor: pointer; border: 1px solid transparent; -webkit-transition: all .2s; transition: all .2s; margin-left: 8px; }
.pp-action-btn svg { width: 15px; height: 15px; margin-right: 5px; }
.pp-word-btn { background: -webkit-linear-gradient(135deg, rgba(124,58,237,.3), rgba(37,99,235,.3)); background: linear-gradient(135deg, rgba(124,58,237,.3), rgba(37,99,235,.3)); border-color: rgba(124,58,237,.4); color: #c4b5fd; }
.pp-word-btn:hover { background: -webkit-linear-gradient(135deg, rgba(124,58,237,.5), rgba(37,99,235,.5)); background: linear-gradient(135deg, rgba(124,58,237,.5), rgba(37,99,235,.5)); }
.pp-copy-btn { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.1); color: rgba(255,255,255,.7); }
.pp-copy-btn:hover { background: rgba(255,255,255,.1); color: #fff; }
.pp-reset-btn { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.08); color: rgba(255,255,255,.5); }
.pp-reset-btn:hover { background: rgba(255,255,255,.08); color: rgba(255,255,255,.8); }

/* 论文文档区 */
.pp-paper-doc { background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.08); border-top: none; border-radius: 0 0 14px 14px; padding: 40px 60px; min-height: 400px; line-height: 1.9; }
.p-title { font-size: 24px; font-weight: 800; color: #fff; text-align: center; margin-bottom: 24px; line-height: 1.4; }
.p-keywords { font-size: 14px; color: rgba(255,255,255,.55); background: rgba(124,58,237,.1); border-left: 3px solid rgba(124,58,237,.5); padding: 10px 16px; border-radius: 0 8px 8px 0; margin-bottom: 16px; line-height: 1.7; }
.p-h1 { font-size: 18px; font-weight: 700; color: #e2e8f0; margin: 28px 0 12px; padding-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,.08); }
.p-h2 { font-size: 16px; font-weight: 600; color: rgba(255,255,255,.8); margin: 20px 0 8px; padding-left: 12px; border-left: 2px solid rgba(124,58,237,.5); }
.p-body { font-size: 15px; color: rgba(255,255,255,.7); text-indent: 2em; margin-bottom: 12px; line-height: 1.9; }
.p-ref-title { font-size: 17px; font-weight: 700; color: #e2e8f0; margin: 32px 0 14px; padding-bottom: 8px; border-bottom: 1px solid rgba(255,255,255,.08); }
.p-ref-item { font-size: 13px; color: rgba(255,255,255,.5); padding-left: 2em; text-indent: -2em; margin-bottom: 8px; line-height: 1.7; }

/* 错误状态 */
.pp-error { text-align: center; padding: 60px 24px; }
.pp-error-icon { margin-bottom: 20px; }
.pp-error-icon svg { width: 56px; height: 56px; }
.pp-error-title { font-size: 20px; font-weight: 700; color: #f87171; margin-bottom: 8px; }
.pp-error-msg { font-size: 14px; color: rgba(255,255,255,.45); margin-bottom: 24px; }
.pp-retry-btn { padding: 12px 32px; background: rgba(239,68,68,.15); border: 1px solid rgba(239,68,68,.3); color: #f87171; border-radius: 10px; font-size: 14px; cursor: pointer; -webkit-transition: all .2s; transition: all .2s; }
.pp-retry-btn:hover { background: rgba(239,68,68,.25); }

.hidden { display: none !important; }

/* ---- 论文类型卡片选择区 ---- */
.pp-type-section { margin-bottom: 24px; }
.pp-type-grid {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  -webkit-flex-wrap: wrap;
  flex-wrap: wrap;
  margin-left: -5px;
  margin-right: -5px;
  margin-top: 10px;
}
.pp-type-card {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -webkit-align-items: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  width: 130px;
  width: calc(16.6667% - 10px);
  min-width: 80px;
  padding: 16px 8px 14px;
  background: rgba(255,255,255,.04);
  border: 1.5px solid rgba(255,255,255,.1);
  border-radius: 12px;
  cursor: pointer;
  -webkit-transition: all .2s;
  transition: all .2s;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  margin: 5px;
}
.pp-type-card:hover {
  background: rgba(124,58,237,.12);
  border-color: rgba(124,58,237,.4);
}
.pp-type-card.active {
  background: rgba(124,58,237,.18);
  border-color: #7C3AED;
  box-shadow: 0 0 0 2px rgba(124,58,237,.25);
}
.pp-type-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  margin-bottom: 8px;
}
.pp-type-icon svg { width: 20px; height: 20px; }
.pp-ti-1 { background: rgba(124,58,237,.25); color: #a78bfa; }
.pp-ti-2 { background: rgba(37,99,235,.25); color: #60a5fa; }
.pp-ti-3 { background: rgba(16,185,129,.2); color: #34d399; }
.pp-ti-4 { background: rgba(245,158,11,.2); color: #fbbf24; }
.pp-ti-5 { background: rgba(239,68,68,.2); color: #f87171; }
.pp-ti-6 { background: rgba(14,165,233,.2); color: #38bdf8; }
.pp-ti-7 { background: rgba(168,85,247,.2); color: #c084fc; }
.pp-ti-8 { background: rgba(20,184,166,.2); color: #2dd4bf; }
.pp-ti-9 { background: rgba(99,102,241,.2); color: #818cf8; }
.pp-ti-10 { background: rgba(236,72,153,.2); color: #f472b6; }
.pp-ti-11 { background: rgba(251,146,60,.2); color: #fb923c; }
.pp-ti-12 { background: rgba(52,211,153,.2); color: #34d399; }
.pp-type-name {
  font-size: 12px;
  color: rgba(255,255,255,.7);
  font-weight: 500;
  text-align: center;
  line-height: 1.3;
}
.pp-type-card.active .pp-type-name { color: #c4b5fd; }

/* ---- 语言行 ---- */
.pp-lang-row {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  align-items: center;
  margin-bottom: 24px;
  font-size: 14px;
  color: rgba(255,255,255,.6);
}
.pp-lang-label { font-size: 14px; color: rgba(255,255,255,.5); margin-right: 16px; }
.pp-radio-label {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  align-items: center;
  cursor: pointer;
  color: rgba(255,255,255,.7);
  font-size: 14px;
  margin-right: 20px;
}
/* 自定义 radio 样式，不使用 accent-color（Chrome 93+ 才支持） */
.pp-radio {
  width: 15px;
  height: 15px;
  cursor: pointer;
  margin-right: 6px;
  -webkit-appearance: none;
  appearance: none;
  border: 2px solid rgba(255,255,255,.3);
  border-radius: 50%;
  background: transparent;
  position: relative;
  vertical-align: middle;
  -webkit-transition: border-color .2s;
  transition: border-color .2s;
  -webkit-flex-shrink: 0;
  flex-shrink: 0;
}
.pp-radio:checked {
  border-color: #7C3AED;
  background: #7C3AED;
}
.pp-radio:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  background: #fff;
  border-radius: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

/* ---- 响应式 ---- */
@media(max-width: 768px) {
  .pp-hero-title { font-size: 32px; }
  .pp-config-card { padding: 20px 16px; }
  .pp-config-item { -webkit-flex: 1 1 100%; flex: 1 1 100%; }
  .pp-gen-btn { width: 100%; -webkit-box-pack: center; -webkit-justify-content: center; justify-content: center; }
  .pp-config-action { -webkit-box-orient: vertical; -webkit-box-direction: normal; -webkit-flex-direction: column; flex-direction: column; -webkit-box-align: stretch; -webkit-align-items: stretch; align-items: stretch; }
  .pp-gen-tip { margin-left: 0; margin-top: 10px; text-align: center; }
  .pp-paper-doc { padding: 24px 16px; }
  .pp-result-bar { -webkit-box-orient: vertical; -webkit-box-direction: normal; -webkit-flex-direction: column; flex-direction: column; -webkit-box-align: stretch; -webkit-align-items: stretch; align-items: stretch; }
  .pp-empty-stats { -webkit-box-orient: vertical; -webkit-box-direction: normal; -webkit-flex-direction: column; flex-direction: column; padding: 20px; }
  .pp-estat { padding: 8px 0; }
  .pp-estat-div { width: 60px; height: 1px; }
  .pp-action-btn { margin-left: 0; margin-right: 8px; margin-bottom: 4px; }
}

/* 响应式：手机端3列布局（百度APP兼容） */
@media(max-width: 768px) {
  .pp-type-grid {
    margin-left: -4px;
    margin-right: -4px;
  }
  .pp-type-card {
    width: 96px;
    width: calc(33.3333% - 8px);
    min-width: 88px;
    padding: 14px 8px 12px;
    margin: 4px;
  }
  .pp-type-icon { width: 36px; height: 36px; border-radius: 10px; }
  .pp-type-icon svg { width: 20px; height: 20px; }
  .pp-type-name { font-size: 12px; }
}
@media(max-width: 400px) {
  .pp-type-grid {
    margin-left: -3px;
    margin-right: -3px;
  }
  .pp-type-card {
    width: 90px;
    width: calc(33.3333% - 6px);
    min-width: 82px;
    padding: 12px 6px 10px;
    margin: 3px;
  }
  .pp-type-icon { width: 32px; height: 32px; }
  .pp-type-icon svg { width: 18px; height: 18px; }
  .pp-type-name { font-size: 11px; }
}

/* ---- 页脚备案 ---- */
.pp-footer {
  text-align: center;
  padding: 16px 20px 20px;
  margin-top: 24px;
}
.pp-footer-copy {
  font-size: 12px;
  color: rgba(255,255,255,.3);
  margin: 0 0 4px;
}
.pp-footer-beian a {
  font-size: 12px;
  color: rgba(255,255,255,.25);
  text-decoration: none;
}
.pp-footer-beian a:hover { color: rgba(255,255,255,.5); }