/* ==========================================================================
   程亚飞个人品牌网站 - 各页面特有样式
   ========================================================================== */

/* ==================== 首页 index ==================== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding-top: var(--nav-h); overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg .grid-bg { opacity: 0.5; }
.hero-orb-1 { width: 480px; height: 480px; background: var(--c-primary); top: -120px; right: -80px; }
.hero-orb-2 { width: 360px; height: 360px; background: var(--c-violet); bottom: -100px; left: -80px; opacity: 0.3; }
.hero-orb-3 { width: 260px; height: 260px; background: var(--c-accent); top: 40%; left: 55%; opacity: 0.18; }
.hero-content { position: relative; z-index: 2; max-width: 880px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.4rem 0.9rem; border-radius: var(--radius-full);
  background: var(--c-accent-soft); color: var(--c-accent);
  border: 1px solid rgba(245, 158, 11, 0.3);
  font-size: 0.82rem; font-weight: 600; margin-bottom: var(--space-6);
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--c-accent); box-shadow: 0 0 10px var(--c-accent); animation: pulse 1.6s ease infinite; }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.5rem); line-height: 1.08; margin-bottom: var(--space-4); }
.hero .hero-name-en { display: block; font-family: var(--font-mono); font-size: clamp(0.9rem, 1.6vw, 1.15rem); color: var(--c-primary); letter-spacing: 0.15em; font-weight: 500; margin-bottom: var(--space-4); text-transform: uppercase; }
.hero .hero-title { font-size: clamp(1.05rem, 2vw, 1.4rem); color: var(--c-text-muted); font-weight: 500; margin-bottom: var(--space-3); }
.hero .hero-tagline { font-size: clamp(1.1rem, 2.2vw, 1.5rem); color: var(--c-text); max-width: 640px; line-height: 1.6; margin-bottom: var(--space-10); font-weight: 400; }
.hero-cta { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: var(--space-8); left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  color: var(--c-text-subtle); font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; z-index: 2;
}
.hero-scroll .mouse { width: 22px; height: 36px; border: 2px solid var(--c-border-strong); border-radius: 12px; position: relative; }
.hero-scroll .mouse::after { content: ""; position: absolute; top: 6px; left: 50%; transform: translateX(-50%); width: 4px; height: 8px; border-radius: 2px; background: var(--c-primary); animation: scrollWheel 1.6s ease infinite; }
@keyframes scrollWheel { 0% { opacity: 1; transform: translate(-50%, 0); } 100% { opacity: 0; transform: translate(-50%, 14px); } }

/* 影响力数据栏 */
.stats-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); }
.stat-item { padding: var(--space-10) var(--space-6); text-align: center; position: relative; }
.stat-item + .stat-item::before { content: ""; position: absolute; left: 0; top: 25%; bottom: 25%; width: 1px; background: var(--c-border); }
.stat-value { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1; margin-bottom: var(--space-2); background: linear-gradient(135deg, var(--c-text), var(--c-primary)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 0.9rem; color: var(--c-text-muted); letter-spacing: 0.02em; }
@media (max-width: 640px) { .stats-band { grid-template-columns: repeat(2, 1fr); } .stat-item + .stat-item::before { display: none; } .stat-item:nth-child(odd) { border-right: 1px solid var(--c-border); } .stat-item:nth-child(-n+2) { border-bottom: 1px solid var(--c-border); } }

/* 精选卡片 */
.feature-card { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-8); }
.feature-card .feature-num { font-family: var(--font-mono); font-size: 0.8rem; color: var(--c-text-subtle); letter-spacing: 0.1em; }
.feature-card h3 { margin: var(--space-2) 0; }
.feature-card p { flex: 1; }
.feature-card .feature-link { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--c-primary); font-weight: 600; font-size: 0.92rem; margin-top: var(--space-2); transition: gap var(--dur-fast); }
.feature-card:hover .feature-link { gap: 0.7rem; }

/* 技术哲学 */
.approach-loop { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin-top: var(--space-10); }
@media (max-width: 720px) { .approach-loop { grid-template-columns: 1fr; } }
.loop-item { text-align: center; padding: var(--space-8) var(--space-4); border: 1px solid var(--c-border); border-radius: var(--radius-lg); background: var(--c-surface); position: relative; transition: all var(--dur) var(--ease); }
.loop-item:hover { border-color: var(--c-primary); transform: translateY(-4px); }
.loop-item .loop-icon { width: 56px; height: 56px; margin: 0 auto var(--space-4); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; background: var(--c-primary-soft); color: var(--c-primary); font-family: var(--font-mono); font-weight: 700; font-size: 1.3rem; }
.loop-item h4 { margin-bottom: var(--space-2); }
.loop-arrow { display: flex; align-items: center; justify-content: center; color: var(--c-text-subtle); align-self: center; }
@media (max-width: 720px) { .loop-arrow { transform: rotate(90deg); } }

/* ==================== 关于我 about ==================== */
.page-hero {
  position: relative; padding: calc(var(--nav-h) + var(--space-16)) 0 var(--space-16);
  border-bottom: 1px solid var(--c-border); overflow: hidden;
}
.page-hero .glow-orb { width: 420px; height: 420px; background: var(--c-primary); top: -120px; right: -60px; opacity: 0.25; }
.page-hero-content { position: relative; z-index: 2; display: grid; grid-template-columns: 0.8fr 1.2fr; gap: var(--space-12); align-items: center; }
@media (max-width: 860px) { .page-hero-content { grid-template-columns: 1fr; gap: var(--space-8); } }
.profile-frame { width: 280px; height: 280px; border-radius: var(--radius-xl); overflow: hidden; position: relative; border: 1px solid var(--c-border-strong); background: var(--c-surface); }
.profile-frame .placeholder { width: 100%; height: 100%; border-radius: var(--radius-xl); }
.profile-frame .avatar-ring { position: absolute; inset: -2px; border-radius: var(--radius-xl); padding: 2px; background: linear-gradient(135deg, var(--c-primary), var(--c-violet), var(--c-accent)); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0.6; }
.page-hero h1 { margin-bottom: var(--space-3); }
.page-hero .hero-role { font-size: 1.1rem; color: var(--c-primary); font-weight: 600; margin-bottom: var(--space-2); }
.page-hero .hero-location { font-size: 0.95rem; color: var(--c-text-subtle); display: flex; align-items: center; gap: 0.4rem; margin-bottom: var(--space-6); }
.page-hero .hero-intro { font-size: 1.05rem; color: var(--c-text-muted); max-width: 600px; }

/* 叙事 */
.narrative { max-width: 760px; }
.narrative p { font-size: 1.08rem; line-height: 1.85; margin-bottom: var(--space-6); color: var(--c-text-muted); }
.narrative p:first-of-type::first-letter { font-size: 3.2rem; font-weight: 700; float: left; line-height: 0.9; padding: 0.2rem 0.6rem 0 0; color: var(--c-primary); font-family: var(--font-display); }

/* 时间轴 */
.timeline { position: relative; max-width: 880px; margin: 0 auto; }
.timeline::before { content: ""; position: absolute; left: 20px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(var(--c-primary), var(--c-violet), var(--c-accent)); border-radius: 2px; }
.tl-item { position: relative; padding-left: 64px; padding-bottom: var(--space-10); }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: 12px; top: 4px; width: 18px; height: 18px; border-radius: 50%; background: var(--c-bg); border: 3px solid var(--c-primary); box-shadow: 0 0 0 4px var(--c-primary-soft); }
.tl-year { font-family: var(--font-mono); font-size: 0.8rem; font-weight: 600; color: var(--c-primary); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.3rem; }
.tl-role { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.2rem; }
.tl-org { font-size: 0.9rem; color: var(--c-text-subtle); margin-bottom: var(--space-2); }
.tl-desc { color: var(--c-text-muted); line-height: 1.7; }

/* 能力矩阵 */
.skill-card { padding: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); }
.skill-card .skill-icon { width: 44px; height: 44px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; background: var(--c-primary-soft); color: var(--c-primary); }
.skill-card .skill-icon svg { width: 22px; height: 22px; }

/* 荣誉 */
.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
@media (max-width: 860px) { .honor-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .honor-grid { grid-template-columns: 1fr; } }
.honor-card { padding: var(--space-6); text-align: center; cursor: pointer; }
.honor-logo { width: 72px; height: 72px; margin: 0 auto var(--space-4); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; background: var(--c-accent-soft); color: var(--c-accent); font-family: var(--font-mono); font-weight: 700; font-size: 1.4rem; }
.honor-card h4 { font-size: 0.98rem; margin-bottom: var(--space-2); }
.honor-card .honor-meta { font-size: 0.82rem; color: var(--c-text-subtle); }
.honor-card .honor-year { display: inline-block; margin-top: var(--space-3); padding: 0.2rem 0.7rem; border-radius: var(--radius-full); background: var(--c-surface-2); font-size: 0.78rem; color: var(--c-accent); font-family: var(--font-mono); }

/* 推荐语 */
.testimonial-card { padding: var(--space-8); position: relative; }
.testimonial-card .quote-mark { font-family: var(--font-display); font-size: 4rem; line-height: 1; color: var(--c-primary); opacity: 0.25; position: absolute; top: var(--space-4); left: var(--space-6); }
.testimonial-card blockquote { font-size: 1.05rem; line-height: 1.8; color: var(--c-text); margin: var(--space-6) 0 var(--space-6); position: relative; z-index: 1; }
.testimonial-author { display: flex; align-items: center; gap: var(--space-3); }
.testimonial-author .avatar { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--c-primary), var(--c-violet)); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; }
.testimonial-author .info strong { display: block; font-size: 0.95rem; }
.testimonial-author .info span { font-size: 0.82rem; color: var(--c-text-subtle); }

/* ==================== 演讲与媒体 speaking ==================== */
.stat-banner { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
@media (max-width: 640px) { .stat-banner { grid-template-columns: 1fr; } }
.stat-banner-item { text-align: center; padding: var(--space-8); }
.stat-banner-item .stat-value { font-size: clamp(2.2rem, 4vw, 3.2rem); }

/* 演讲记录表 */
.filter-bar { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-8); }
.speech-table { border: 1px solid var(--c-border); border-radius: var(--radius-lg); overflow: hidden; }
.speech-row { display: grid; grid-template-columns: 80px 1.6fr 2fr 1fr 110px 100px; gap: var(--space-4); padding: var(--space-4) var(--space-6); align-items: center; border-bottom: 1px solid var(--c-border); transition: background var(--dur-fast); }
.speech-row:last-child { border-bottom: none; }
.speech-row:hover { background: var(--c-surface-2); }
.speech-row .sr-date { font-family: var(--font-mono); font-size: 0.85rem; color: var(--c-text-subtle); }
.speech-row .sr-event { font-weight: 600; font-size: 0.92rem; }
.speech-row .sr-topic { color: var(--c-text-muted); font-size: 0.9rem; }
.speech-row .sr-loc { color: var(--c-text-subtle); font-size: 0.85rem; }
.speech-row .sr-type { justify-self: center; }
.speech-row .sr-res { display: flex; gap: 0.4rem; justify-content: flex-end; }
@media (max-width: 960px) { .speech-row { grid-template-columns: 1fr; gap: var(--space-2); padding: var(--space-4); } .speech-row .sr-type { justify-self: start; } .speech-row .sr-res { justify-content: flex-start; } }

/* 精选演讲卡片 */
.featured-speech-card { overflow: hidden; padding: 0; }
.featured-speech-card .fs-photo { height: 220px; }
.featured-speech-card .fs-body { padding: var(--space-8); }
.featured-speech-card .fs-event { font-family: var(--font-mono); font-size: 0.8rem; color: var(--c-primary); letter-spacing: 0.06em; margin-bottom: var(--space-2); }
.featured-speech-card h3 { margin-bottom: var(--space-3); }
.featured-speech-card .fs-summary { color: var(--c-text-muted); margin-bottom: var(--space-4); line-height: 1.7; }
.fs-insights { display: flex; flex-direction: column; gap: var(--space-2); margin-top: var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--c-border); }
.fs-insights li { display: flex; gap: 0.6rem; font-size: 0.92rem; color: var(--c-text); }
.fs-insights li::before { content: "→"; color: var(--c-primary); font-weight: 700; flex-shrink: 0; }

/* 媒体 */
.media-list { display: flex; flex-direction: column; gap: var(--space-4); }
.media-item { display: flex; gap: var(--space-4); padding: var(--space-6); border: 1px solid var(--c-border); border-radius: var(--radius-lg); transition: all var(--dur) var(--ease); }
.media-item:hover { border-color: var(--c-border-strong); transform: translateX(6px); }
.media-item .media-date { flex-shrink: 0; width: 64px; text-align: center; }
.media-item .media-date .y { font-family: var(--font-mono); font-size: 1.3rem; font-weight: 700; color: var(--c-primary); }
.media-item .media-date .src { font-size: 0.7rem; color: var(--c-text-subtle); text-transform: uppercase; letter-spacing: 0.05em; }
.media-item .media-body h4 { font-size: 1rem; margin-bottom: var(--space-2); line-height: 1.4; }
.media-item .media-body p { font-size: 0.9rem; }

/* ==================== 技术洞察 insights ==================== */
.tag-cloud { display: flex; flex-wrap: wrap; gap: var(--space-2); }

.article-card { overflow: hidden; padding: 0; display: flex; flex-direction: column; }
.article-card .ac-cover { height: 200px; position: relative; }
.article-card .ac-cat { position: absolute; top: var(--space-3); left: var(--space-3); z-index: 2; }
.article-card .ac-body { padding: var(--space-6); display: flex; flex-direction: column; flex: 1; }
.article-card .ac-meta { display: flex; gap: var(--space-3); font-size: 0.82rem; color: var(--c-text-subtle); margin-bottom: var(--space-3); }
.article-card .ac-meta span { display: flex; align-items: center; gap: 0.3rem; }
.article-card h3 { font-size: 1.15rem; margin-bottom: var(--space-3); line-height: 1.35; }
.article-card .ac-summary { color: var(--c-text-muted); font-size: 0.93rem; flex: 1; margin-bottom: var(--space-4); }
.article-card .ac-tags { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-bottom: var(--space-4); }
.article-card .ac-link { color: var(--c-primary); font-weight: 600; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 0.4rem; transition: gap var(--dur-fast); }
.article-card:hover .ac-link { gap: 0.7rem; }

/* 系列 */
.series-card { padding: var(--space-8); }
.series-card .series-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-3); }
.series-card .series-count { font-family: var(--font-mono); font-size: 0.78rem; color: var(--c-accent); padding: 0.25rem 0.7rem; border-radius: var(--radius-full); background: var(--c-accent-soft); }
.series-card h3 { margin-bottom: var(--space-2); }
.series-card p { font-size: 0.95rem; }

/* 外部贡献 */
.external-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
@media (max-width: 640px) { .external-list { grid-template-columns: 1fr; } }
.external-item { display: flex; align-items: center; gap: var(--space-4); padding: var(--space-6); }
.external-item .ext-icon { width: 48px; height: 48px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; background: var(--c-surface-2); color: var(--c-primary); flex-shrink: 0; }
.external-item h4 { font-size: 0.98rem; margin-bottom: 0.2rem; }
.external-item p { font-size: 0.85rem; }
.external-item .ext-type { font-family: var(--font-mono); font-size: 0.7rem; color: var(--c-accent); margin-left: auto; }

/* ==================== 顾问服务 services ==================== */
.service-card { padding: var(--space-8); display: flex; flex-direction: column; gap: var(--space-4); height: 100%; }
.service-card .svc-icon { width: 56px; height: 56px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; background: var(--c-primary-soft); color: var(--c-primary); margin-bottom: var(--space-2); }
.service-card .svc-icon svg { width: 28px; height: 28px; }
.service-card h3 { margin-bottom: var(--space-2); }
.service-card .svc-desc { color: var(--c-text-muted); }
.service-card .svc-features { display: flex; flex-direction: column; gap: var(--space-2); margin-top: var(--space-4); padding-top: var(--space-4); border-top: 1px solid var(--c-border); }
.service-card .svc-features li { display: flex; align-items: flex-start; gap: 0.6rem; font-size: 0.92rem; color: var(--c-text); }
.service-card .svc-features li::before { content: "✓"; color: var(--c-primary); font-weight: 700; flex-shrink: 0; }

/* 流程 */
.process-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); position: relative; }
@media (max-width: 860px) { .process-flow { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .process-flow { grid-template-columns: 1fr; } }
.process-step { text-align: center; padding: var(--space-6); position: relative; }
.process-step .ps-num { font-family: var(--font-mono); font-size: 2.4rem; font-weight: 700; line-height: 1; background: linear-gradient(135deg, var(--c-primary), var(--c-violet)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: var(--space-3); }
.process-step h4 { margin-bottom: var(--space-2); }
.process-step p { font-size: 0.9rem; }

/* 案例 */
.case-card { padding: var(--space-8); }
.case-card .case-head { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-6); padding-bottom: var(--space-4); border-bottom: 1px solid var(--c-border); }
.case-card .case-ind { padding: 0.3rem 0.8rem; border-radius: var(--radius-full); background: var(--c-primary-soft); color: var(--c-primary); font-size: 0.8rem; font-weight: 600; }
.case-row { display: grid; grid-template-columns: 120px 1fr; gap: var(--space-4); margin-bottom: var(--space-4); }
.case-row .case-label { font-family: var(--font-mono); font-size: 0.78rem; color: var(--c-text-subtle); text-transform: uppercase; letter-spacing: 0.06em; padding-top: 0.15rem; }
.case-row .case-text { color: var(--c-text); font-size: 0.95rem; line-height: 1.7; }
.case-row.result .case-text { color: var(--c-primary); font-weight: 500; }
@media (max-width: 540px) { .case-row { grid-template-columns: 1fr; gap: var(--space-1); } }

/* 套餐 */
.plan-card { padding: var(--space-8); display: flex; flex-direction: column; gap: var(--space-4); position: relative; }
.plan-card.featured { border-color: var(--c-primary); box-shadow: var(--shadow-glow); }
.plan-card .plan-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); padding: 0.25rem 0.9rem; border-radius: var(--radius-full); background: var(--c-primary); color: #fff; font-size: 0.75rem; font-weight: 600; }
.plan-card .plan-name { font-size: 1.3rem; font-weight: 700; }
.plan-card .plan-desc { color: var(--c-text-muted); font-size: 0.92rem; }
.plan-card .plan-features { display: flex; flex-direction: column; gap: var(--space-2); margin: var(--space-2) 0; }
.plan-card .plan-features li { display: flex; gap: 0.6rem; font-size: 0.9rem; color: var(--c-text-muted); }
.plan-card .plan-features li::before { content: "—"; color: var(--c-text-subtle); }
.pricing-note { text-align: center; font-family: var(--font-mono); font-size: 0.88rem; color: var(--c-accent); margin-top: var(--space-6); }

/* FAQ */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { border: 1px solid var(--c-border); border-radius: var(--radius-lg); margin-bottom: var(--space-3); overflow: hidden; transition: border-color var(--dur-fast); }
.faq-item.open { border-color: var(--c-border-strong); }
.faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); padding: var(--space-5) var(--space-6); text-align: left; font-weight: 600; font-size: 1rem; color: var(--c-text); }
.faq-q .faq-icon { flex-shrink: 0; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; color: var(--c-primary); transition: transform var(--dur) var(--ease); }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height var(--dur) var(--ease); }
.faq-a-inner { padding: 0 var(--space-6) var(--space-5); color: var(--c-text-muted); line-height: 1.7; }

/* ==================== 联系 contact ==================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: var(--space-12); align-items: start; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; gap: var(--space-8); } }
.channel-list { display: flex; flex-direction: column; gap: var(--space-3); }
.channel-card { display: flex; align-items: center; gap: var(--space-4); padding: var(--space-5) var(--space-6); border: 1px solid var(--c-border); border-radius: var(--radius-lg); transition: all var(--dur-fast); cursor: pointer; }
.channel-card:hover { border-color: var(--c-primary); background: var(--c-primary-soft); transform: translateX(4px); }
.channel-card .ch-icon { width: 44px; height: 44px; border-radius: var(--radius); display: flex; align-items: center; justify-content: center; background: var(--c-surface-2); color: var(--c-primary); flex-shrink: 0; }
.channel-card .ch-body { flex: 1; }
.channel-card .ch-label { font-size: 0.78rem; color: var(--c-text-subtle); text-transform: uppercase; letter-spacing: 0.06em; }
.channel-card .ch-value { font-size: 0.98rem; font-weight: 500; }
.channel-card .ch-action { color: var(--c-text-subtle); }
.response-card { padding: var(--space-6); border-radius: var(--radius-lg); background: var(--c-primary-soft); border: 1px solid rgba(59,130,246,0.2); display: flex; align-items: center; gap: var(--space-4); margin-top: var(--space-6); }
.response-card .ch-icon { background: var(--c-primary); color: #fff; }

/* 表单 */
.form-card { padding: var(--space-10); }
.form-group { margin-bottom: var(--space-5); }
.form-group label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: var(--space-2); color: var(--c-text); }
.form-group label .req { color: var(--c-accent); }
.form-control {
  width: 100%; padding: 0.85rem 1rem; border-radius: var(--radius);
  background: var(--c-surface-2); border: 1px solid var(--c-border);
  color: var(--c-text); font-size: 0.95rem; transition: all var(--dur-fast) var(--ease);
}
.form-control::placeholder { color: var(--c-text-subtle); }
.form-control:focus { outline: none; border-color: var(--c-primary); background: var(--c-surface); box-shadow: 0 0 0 3px var(--c-primary-soft); }
.form-control:invalid:not(:placeholder-shown) { border-color: var(--c-accent); }
textarea.form-control { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
@media (max-width: 540px) { .form-row { grid-template-columns: 1fr; } }
.form-success {
  display: none; flex-direction: column; align-items: center; gap: var(--space-4);
  padding: var(--space-12); text-align: center;
}
.form-success.show { display: flex; animation: fadeIn 0.4s var(--ease); }
.form-success .success-icon { width: 64px; height: 64px; border-radius: 50%; background: var(--c-primary-soft); color: var(--c-primary); display: flex; align-items: center; justify-content: center; }
.form-success h3 { color: var(--c-text); }
.form-success p { color: var(--c-text-muted); }

/* ==================== 占位页 ==================== */
.placeholder-section { min-height: 70vh; display: flex; align-items: center; justify-content: center; text-align: center; padding-top: var(--nav-h); }
.placeholder-block { max-width: 560px; }
.placeholder-block .ph-icon { width: 96px; height: 96px; margin: 0 auto var(--space-8); border-radius: var(--radius-xl); display: flex; align-items: center; justify-content: center; background: var(--c-primary-soft); color: var(--c-primary); position: relative; }
.placeholder-block .ph-icon::after { content: ""; position: absolute; inset: -8px; border-radius: var(--radius-xl); border: 1px dashed var(--c-border-strong); animation: spin 20s linear infinite; }