/*!
 * nesty.css —— 平面排版套料系统（Nesty）宣传页样式
 * 设计依据：docs/nesty-page-design.md §7（视觉与素材）、§7.3（明暗双主题）
 * 约定：所有选择器带 .lp- 前缀，仅作用于本页；不修改任何全站样式。
 * 主题：<html data-theme="dark|light">（默认 dark），变量见 §7.1。
 */

/* ---------- 1) 令牌（暗色为默认，亮色覆盖） ---------- */
html[data-theme="dark"] .lp-page {
    --lp-bg-1: #0B1020;
    --lp-bg-2: #0E1630;
    --lp-brand: #2E7DFF;
    --lp-accent: #22D3EE;
    --lp-accent-2: #7C5CFF;
    --lp-ok: #34D399;
    --lp-text: #E6EDF7;
    --lp-text-2: #94A3B8;
    --lp-card: rgba(255, 255, 255, .04);
    --lp-card-2: rgba(255, 255, 255, .06);
    --lp-line: rgba(255, 255, 255, .10);
    --lp-shadow: 0 12px 40px rgba(46, 125, 255, .25);
    --lp-grid: rgba(255, 255, 255, .045);
    --lp-stock-fill: rgba(148, 163, 184, .10);
    --lp-stock-edge: rgba(148, 163, 184, .55);
}
html[data-theme="light"] .lp-page {
    --lp-bg-1: #F6F8FC;
    --lp-bg-2: #FFFFFF;
    --lp-brand: #1F6FEB;
    --lp-accent: #0891B2;
    --lp-accent-2: #6D4AFF;
    --lp-ok: #059669;
    --lp-text: #0F172A;
    --lp-text-2: #475569;
    --lp-card: #FFFFFF;
    --lp-card-2: #F8FAFC;
    --lp-line: rgba(15, 23, 42, .10);
    --lp-shadow: 0 12px 32px rgba(31, 111, 235, .16);
    --lp-grid: rgba(15, 23, 42, .05);
    --lp-stock-fill: rgba(100, 116, 139, .12);
    --lp-stock-edge: rgba(71, 85, 105, .55);
}
.lp-page {
    --lp-max: 1200px;
    --lp-r: 16px;
    --lp-ease: cubic-bezier(.16, 1, .3, 1);
    margin: 0;
    padding: 0;
    background: radial-gradient(120% 80% at 50% 0%, var(--lp-bg-2) 0%, var(--lp-bg-1) 60%) no-repeat, var(--lp-bg-1);
    color: var(--lp-text);
    font: 16px/1.7 Inter, "HarmonyOS Sans", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
.lp-page * { box-sizing: border-box; }
.lp-page a { color: inherit; text-decoration: none; }
.lp-page h1, .lp-page h2, .lp-page h3, .lp-page p, .lp-page ul { margin: 0; padding: 0; }
.lp-page ul { list-style: none; }
.lp-wrap { width: 100%; max-width: var(--lp-max); margin: 0 auto; padding: 0 24px; }
.lp-hidden { display: none !important; }
.lp-num { font-variant-numeric: tabular-nums; }

/* ---------- 2) 背景（V7：网格缓移 + 光斑呼吸） ---------- */
.lp-bg { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.lp-grid {
    position: absolute; inset: -20%;
    background-image: linear-gradient(var(--lp-grid) 1px, transparent 1px),
        linear-gradient(90deg, var(--lp-grid) 1px, transparent 1px);
    background-size: 48px 48px;
    animation: lp-grid-drift 60s linear infinite;
}
.lp-blob { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .55; }
.lp-blob--a { width: 46vw; height: 46vw; left: -10vw; top: -8vw; background: rgba(46, 125, 255, .30); animation: lp-breathe 9s var(--lp-ease) infinite; }
.lp-blob--b { width: 38vw; height: 38vw; right: -8vw; top: 24vh; background: rgba(34, 211, 238, .22); animation: lp-breathe 11s var(--lp-ease) infinite reverse; }
@keyframes lp-grid-drift { from { transform: translate3d(0, 0, 0); } to { transform: translate3d(-48px, -48px, 0); } }
@keyframes lp-breathe { 0%, 100% { transform: scale(1); opacity: .45; } 50% { transform: scale(1.12); opacity: .62; } }

/* ---------- 3) 顶栏（自带，非本站片段） ---------- */
.lp-nav {
    position: fixed; left: 0; right: 0; top: 0; z-index: 100;
    background: color-mix(in srgb, var(--lp-bg-1) 72%, transparent);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: padding .3s var(--lp-ease), background .3s var(--lp-ease), border-color .3s var(--lp-ease);
    padding: 14px 0;
}
.lp-nav--scrolled { padding: 8px 0; border-bottom-color: var(--lp-line); box-shadow: 0 8px 30px rgba(0, 0, 0, .12); }
.lp-nav-inner { display: flex; align-items: center; gap: 18px; max-width: var(--lp-max); margin: 0 auto; padding: 0 24px; }
.lp-brand { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.lp-brand svg { display: block; }
.lp-brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.lp-brand-text b { font-size: 17px; letter-spacing: .2px; }
.lp-brand-text i { font-style: normal; font-size: 10px; letter-spacing: 1.6px; color: var(--lp-text-2); }
.lp-links { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.lp-links a { font-size: 14.5px; color: var(--lp-text-2); transition: color .2s var(--lp-ease); }
.lp-links a:hover { color: var(--lp-text); }
.lp-nav-actions { display: flex; align-items: center; gap: 10px; margin-left: 8px; }
.lp-icon-btn {
    width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%; border: 1px solid var(--lp-line); background: var(--lp-card);
    color: var(--lp-text); cursor: pointer; font-size: 15px; transition: transform .2s var(--lp-ease), border-color .2s var(--lp-ease);
}
.lp-icon-btn:hover { transform: translateY(-1px); border-color: var(--lp-brand); }
.lp-lang { font-size: 13px; padding: 7px 12px; border-radius: 999px; border: 1px solid var(--lp-line); background: var(--lp-card); }

/* ---------- 4) 按钮 ---------- */
.lp-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 26px; border-radius: 999px; border: 1px solid var(--lp-line);
    background: var(--lp-card); color: var(--lp-text); font-size: 15px; cursor: pointer;
    transition: transform .25s var(--lp-ease), box-shadow .25s var(--lp-ease), border-color .25s var(--lp-ease);
}
.lp-btn:hover { transform: translateY(-2px); box-shadow: var(--lp-shadow); border-color: var(--lp-brand); }
.lp-btn--primary {
    border-color: transparent; color: #fff;
    background: linear-gradient(120deg, var(--lp-brand), var(--lp-accent));
}
.lp-btn--primary:hover { box-shadow: 0 14px 34px rgba(46, 125, 255, .38); }
.lp-btn--sm { padding: 9px 18px; font-size: 14px; }
.lp-btn--lg { padding: 15px 34px; font-size: 16.5px; }

/* ---------- 5) 通用版块骨架 ---------- */
.lp-main { position: relative; z-index: 1; padding-top: 64px; }
.lp-section { padding: 96px 0; }
.lp-section-head { max-width: 780px; margin: 0 auto 44px; text-align: center; }
.lp-eyebrow {
    display: inline-block; margin-bottom: 14px; padding: 5px 14px; border-radius: 999px;
    font-size: 12.5px; letter-spacing: 1.4px; color: var(--lp-accent);
    border: 1px solid color-mix(in srgb, var(--lp-accent) 42%, transparent);
    background: color-mix(in srgb, var(--lp-accent) 10%, transparent);
}
.lp-h2 { font-size: 38px; line-height: 1.25; letter-spacing: -.5px; margin-bottom: 14px; }
.lp-lead { color: var(--lp-text-2); font-size: 16.5px; }
.lp-reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--lp-ease), transform .7s var(--lp-ease); }
.lp-revealed { opacity: 1; transform: none; }

/* ---------- 6) HERO 首屏 ---------- */
.lp-hero { position: relative; z-index: 1; padding: 72px 0 40px; }
.lp-hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.lp-badge {
    display: inline-block; margin-bottom: 20px; padding: 6px 15px; border-radius: 999px;
    font-size: 13px; color: var(--lp-text-2); border: 1px solid var(--lp-line); background: var(--lp-card);
}
.lp-slogan {
    font-size: clamp(32px, 4.6vw, 66px); line-height: 1.1; font-weight: 800; letter-spacing: -1px;
    background: linear-gradient(96deg, var(--lp-brand), var(--lp-accent) 62%, var(--lp-accent-2));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
    background-size: 200% 100%;
    animation: lp-sheen 7s linear infinite;
}
@keyframes lp-sheen { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }
.lp-slogan em { display: block; font-style: normal; }
.lp-sub { margin-top: 20px; font-size: clamp(16px, 1.5vw, 20px); color: var(--lp-text); }
.lp-desc { margin-top: 12px; color: var(--lp-text-2); }
.lp-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.lp-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; margin-top: 40px; }
.lp-stat { padding: 16px 18px; border-radius: var(--lp-r); border: 1px solid var(--lp-line); background: var(--lp-card); }
.lp-stat b { display: block; font-size: 26px; letter-spacing: -.5px;
    background: linear-gradient(96deg, var(--lp-brand), var(--lp-accent));
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.lp-stat span { font-size: 12.5px; color: var(--lp-text-2); }
.lp-hero-visual { position: relative; }
.lp-canvas-wrap {
    position: relative; border-radius: 20px; border: 1px solid var(--lp-line); background: var(--lp-card);
    box-shadow: var(--lp-shadow); padding: 14px; overflow: hidden;
}
.lp-canvas-wrap::after {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background: linear-gradient(150deg, transparent 58%, rgba(255, 255, 255, .10) 70%, transparent 82%);
    transform: translateX(-100%); animation: lp-scan 6.5s var(--lp-ease) infinite;
}
@keyframes lp-scan { 0% { transform: translateX(-100%); } 55%, 100% { transform: translateX(100%); } }
#lpNestCanvas { display: block; width: 100%; height: auto; border-radius: 12px; }
.lp-dots { display: flex; gap: 8px; justify-content: center; margin-top: 12px; }
.lp-dot { width: 24px; height: 4px; border-radius: 999px; background: var(--lp-line); border: 0; padding: 0; cursor: pointer; transition: background .25s var(--lp-ease), width .25s var(--lp-ease); }
.lp-dot--on { background: linear-gradient(90deg, var(--lp-brand), var(--lp-accent)); width: 34px; }
.lp-caption { margin-top: 16px; font-size: 16px; color: var(--lp-text-2); text-align: center; }
/* ---------- 7) 价值对比（V2） ---------- */
.lp-compare { border-radius: 20px; border: 1px solid var(--lp-line); background: var(--lp-card); padding: 18px; box-shadow: var(--lp-shadow); }
.lp-compare-legend { display: flex; flex-wrap: wrap; gap: 22px; justify-content: center; margin-bottom: 14px; font-size: 13.5px; color: var(--lp-text-2); }
.lp-legend { display: inline-flex; align-items: center; gap: 8px; }
.lp-legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.lp-legend--manual i { background: rgba(239, 68, 68, .75); }
.lp-legend--smart i { background: rgba(52, 211, 153, .9); }
.lp-compare-stage { position: relative; touch-action: none; cursor: ew-resize; border-radius: 14px; overflow: hidden; background: var(--lp-stock-fill); }
.lp-compare-stage svg { display: block; width: 100%; height: auto; }
.lp-divider { position: absolute; top: 0; bottom: 0; width: 2px; background: linear-gradient(var(--lp-brand), var(--lp-accent)); box-shadow: 0 0 18px rgba(46, 125, 255, .55); }
.lp-divider::after {
    content: ""; position: absolute; top: 50%; left: 50%; width: 34px; height: 34px; margin: -17px 0 0 -17px;
    border-radius: 50%; border: 2px solid rgba(255, 255, 255, .85);
    background: linear-gradient(120deg, var(--lp-brand), var(--lp-accent));
}
.lp-compare-hint { margin-top: 12px; text-align: center; font-size: 12.5px; color: var(--lp-text-2); }
.lp-compare-note { margin-top: 8px; text-align: center; font-size: 12px; color: var(--lp-text-2); opacity: .85; }
.lp-util { position: absolute; bottom: 12px; padding: 4px 10px; border-radius: 999px; font-size: 12.5px; background: color-mix(in srgb, var(--lp-bg-1) 78%, transparent); border: 1px solid var(--lp-line); }
.lp-util--manual { left: 12px; }
.lp-util--smart { right: 12px; }

/* ---------- 8) 能力矩阵 / 场景卡（V6 / V9） ---------- */
.lp-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.lp-card {
    position: relative; padding: 26px 24px; border-radius: var(--lp-r);
    border: 1px solid var(--lp-line); background: var(--lp-card);
    transform-style: preserve-3d; transition: transform .3s var(--lp-ease), box-shadow .3s var(--lp-ease), border-color .3s var(--lp-ease);
}
.lp-card::before {
    content: ""; position: absolute; inset: 0; border-radius: inherit; opacity: 0; pointer-events: none;
    background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 0%), rgba(46, 125, 255, .18), transparent 70%);
    transition: opacity .3s var(--lp-ease);
}
.lp-card:hover { box-shadow: var(--lp-shadow); border-color: color-mix(in srgb, var(--lp-brand) 45%, transparent); }
.lp-card:hover::before { opacity: 1; }
.lp-card-icon { width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; border-radius: 11px; background: color-mix(in srgb, var(--lp-brand) 16%, transparent); color: var(--lp-accent); margin-bottom: 14px; }
.lp-card h3 { font-size: 18px; margin-bottom: 12px; }
.lp-card ul li { position: relative; padding-left: 16px; font-size: 14.2px; color: var(--lp-text-2); margin-bottom: 7px; }
.lp-card ul li::before { content: ""; position: absolute; left: 0; top: 9px; width: 6px; height: 6px; border-radius: 50%; background: var(--lp-accent); opacity: .8; }
.lp-scenes { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.lp-scene {
    padding: 24px 20px; border-radius: var(--lp-r); border: 1px solid var(--lp-line); background: var(--lp-card);
    transition: transform .28s var(--lp-ease), border-color .28s var(--lp-ease), box-shadow .28s var(--lp-ease);
}
.lp-scene:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--lp-accent) 55%, transparent); box-shadow: var(--lp-shadow); }
.lp-scene-icon { color: var(--lp-accent); margin-bottom: 12px; }
.lp-scene h3 { font-size: 16.5px; margin-bottom: 8px; }
/* ---------- 9) 算法引擎（V3） ---------- */
.lp-algo { display: grid; grid-template-columns: .95fr 1.05fr; gap: 30px; align-items: center;
    border-radius: 20px; border: 1px solid var(--lp-line); background: var(--lp-card); padding: 26px; box-shadow: var(--lp-shadow); }
.lp-algo-switch { display: flex; gap: 10px; margin-bottom: 18px; }
.lp-radio { padding: 9px 18px; border-radius: 999px; border: 1px solid var(--lp-line); background: transparent; color: var(--lp-text-2); cursor: pointer; font-size: 14px; transition: all .25s var(--lp-ease); }
.lp-radio--on { color: #fff; border-color: transparent; background: linear-gradient(120deg, var(--lp-brand), var(--lp-accent)); }
.lp-layers { display: flex; flex-direction: column; gap: 14px; }
.lp-layer { padding: 14px 16px; border-radius: 14px; border: 1px solid var(--lp-line); background: var(--lp-card-2); transition: border-color .3s var(--lp-ease), transform .3s var(--lp-ease); }
.lp-layer--on { border-color: color-mix(in srgb, var(--lp-accent) 55%, transparent); transform: translateX(4px); }
.lp-layer b { display: block; font-size: 15.5px; margin-bottom: 6px; }
.lp-layer span { font-size: 13.2px; color: var(--lp-text-2); }
.lp-layer-tags { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; }
.lp-tag { font-size: 11.5px; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--lp-line); color: var(--lp-text-2); }
.lp-algo-visual { display: flex; align-items: center; justify-content: center; gap: 26px; flex-wrap: wrap; }
.lp-gauge { position: relative; width: 168px; height: 168px; }
.lp-gauge svg { display: block; transform: rotate(-90deg); }
.lp-gauge-val { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.lp-gauge-val b { font-size: 30px; letter-spacing: -.5px; }
.lp-gauge-val span { font-size: 12px; color: var(--lp-text-2); }
.lp-algo-meta { font-size: 13px; color: var(--lp-text-2); text-align: left; }
.lp-algo-meta b { color: var(--lp-text); font-size: 18px; display: block; }
.lp-algo-note { margin-top: 14px; font-size: 12px; color: var(--lp-text-2); opacity: .85; }

/* ---------- 10) 使用流程（V4） ---------- */
.lp-flow { position: relative; }
.lp-flow svg { display: block; width: 100%; height: auto; overflow: visible; }
.lp-flow-line { fill: none; stroke: var(--lp-line); stroke-width: 2; stroke-dasharray: 8 8; }
.lp-flow-line--run { stroke: var(--lp-accent); animation: lp-dash 1.6s linear infinite; }
@keyframes lp-dash { to { stroke-dashoffset: -32; } }
.lp-node { fill: var(--lp-card); stroke: var(--lp-line); stroke-width: 2; transition: fill .4s var(--lp-ease), stroke .4s var(--lp-ease); }
.lp-node--on { fill: color-mix(in srgb, var(--lp-brand) 85%, transparent); stroke: var(--lp-accent); }
.lp-node-t { fill: var(--lp-text-2); font-size: 13px; }
.lp-step-title { font-size: 14px; font-weight: 700; fill: var(--lp-text); }
.lp-step-desc { font-size: 11.6px; fill: var(--lp-text-2); }

/* ---------- 12) CTA 结尾 / 页脚 ---------- */
.lp-band { position: relative; overflow: hidden; text-align: center; padding: 84px 0; }
.lp-band-glow {
    position: absolute; left: 50%; top: 50%; width: 620px; height: 620px; margin: -310px 0 0 -310px;
    border-radius: 50%; background: radial-gradient(circle, rgba(46, 125, 255, .28), transparent 62%);
    animation: lp-breathe 8s var(--lp-ease) infinite; pointer-events: none;
}
.lp-band h2 { position: relative; font-size: clamp(26px, 3.4vw, 44px); letter-spacing: -.6px; }
.lp-band p { position: relative; margin-top: 14px; color: var(--lp-text-2); }
.lp-band .lp-cta { position: relative; justify-content: center; }
.lp-footer { position: relative; z-index: 1; border-top: 1px solid var(--lp-line); padding: 42px 0 34px; background: color-mix(in srgb, var(--lp-bg-2) 60%, transparent); }
.lp-footer-inner { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.lp-footer-brand b { font-size: 15.5px; }
.lp-footer-brand p { margin-top: 6px; font-size: 13px; color: var(--lp-text-2); max-width: 620px; }
.lp-footer-sub { font-size: 12.8px; color: var(--lp-text-2); }
.lp-footer-sub a { color: var(--lp-accent); border-bottom: 1px dashed color-mix(in srgb, var(--lp-accent) 55%, transparent); }
/* ---------- 13) 响应式（≥1200 / 992 / 768 / 480） ---------- */
@media (max-width: 1200px) {
    .lp-h2 { font-size: 33px; }
    .lp-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 992px) {
    .lp-section { padding: 74px 0; }
    .lp-hero { padding: 48px 0 24px; }
    .lp-hero-inner { grid-template-columns: 1fr; gap: 30px; }
    .lp-algo { grid-template-columns: 1fr; }
    .lp-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lp-scenes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lp-links { gap: 18px; }
}
@media (max-width: 768px) {
    .lp-section { padding: 58px 0; }
    .lp-h2 { font-size: 27px; }
    .lp-slogan { font-size: clamp(30px, 8.6vw, 40px); }
    .lp-links { display: none; }
    .lp-brand-text i { display: none; }
    .lp-cards, .lp-scenes, .lp-stats { grid-template-columns: 1fr; }
    .lp-stat { padding: 13px 15px; }
    .lp-compare { padding: 12px; }
    .lp-util { font-size: 11.5px; padding: 3px 8px; }
    .lp-footer-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
    .lp-wrap, .lp-nav-inner { padding: 0 16px; }
    .lp-section { padding: 46px 0; }
    .lp-btn { padding: 11px 20px; font-size: 14.5px; }
    .lp-btn--lg { padding: 13px 24px; font-size: 15.5px; }
    .lp-gauge { width: 140px; height: 140px; }
    .lp-gauge-val b { font-size: 25px; }
}

/* ---------- 14) 可访问性：动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
    .lp-page *, .lp-page *::before, .lp-page *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .001ms !important;
        scroll-behavior: auto !important;
    }
    .lp-slogan { animation: none; background-position: 0 50%; }
    .lp-canvas-wrap::after { display: none; }
    .lp-reveal { opacity: 1; transform: none; }
}
.lp-page { scroll-behavior: smooth; }

/* ---------- 15) 亮色下的细节修正 ---------- */
html[data-theme="light"] .lp-canvas-wrap::after { background: linear-gradient(150deg, transparent 60%, rgba(31, 111, 235, .10) 72%, transparent 84%); }
html[data-theme="light"] .lp-divider::after { border-color: rgba(255, 255, 255, .95); }
html[data-theme="light"] .lp-band-glow { background: radial-gradient(circle, rgba(31, 111, 235, .18), transparent 62%); }
html[data-theme="light"] .lp-util { background: color-mix(in srgb, #FFFFFF 82%, transparent); }
html[data-theme="light"] .lp-nav { background: color-mix(in srgb, #FFFFFF 78%, transparent); }
html[data-theme="light"] .lp-btn--primary { color: #fff; }
html[data-theme="light"] .lp-card::before { background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 0%), rgba(31, 111, 235, .12), transparent 70%); }

/* ---------- 16) 使用流程（步骤 + 连线，V4） ---------- */
.lp-flow { padding-top: 6px; }
.lp-flow-rail { position: relative; height: 2px; margin: 0 4% 30px; background: var(--lp-line); overflow: hidden; border-radius: 2px; }
.lp-flow-line { position: absolute; inset: 0; transform: scaleX(0); transform-origin: left center;
    background: linear-gradient(90deg, var(--lp-brand), var(--lp-accent)); transition: transform 1.4s var(--lp-ease); }
.lp-flow-line--run { transform: scaleX(1); }
.lp-flow-steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px; list-style: none; margin: 0; padding: 0; }
.lp-step { padding: 16px 18px 20px; border-radius: var(--lp-r); border: 1px solid var(--lp-line); background: var(--lp-card);
    opacity: .55; transition: opacity .5s var(--lp-ease), border-color .5s var(--lp-ease), transform .5s var(--lp-ease); }
.lp-step--on { opacity: 1; border-color: color-mix(in srgb, var(--lp-accent) 45%, transparent); transform: translateY(-3px); }
.lp-step-num { width: 34px; height: 34px; margin-bottom: 12px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: 700; color: var(--lp-text-2); border: 2px solid var(--lp-line); background: var(--lp-card-2);
    transition: color .45s var(--lp-ease), border-color .45s var(--lp-ease), background .45s var(--lp-ease), box-shadow .45s var(--lp-ease); }
.lp-step--on .lp-step-num { color: #fff; border-color: transparent; background: linear-gradient(120deg, var(--lp-brand), var(--lp-accent));
    box-shadow: 0 0 0 6px color-mix(in srgb, var(--lp-brand) 18%, transparent); }
.lp-step h3 { font-size: 16px; margin-bottom: 8px; }
.lp-step p { font-size: 13.4px; color: var(--lp-text-2); }

@media (max-width: 992px) {
    .lp-flow-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lp-flow-rail { display: none; }
}
@media (max-width: 480px) {
    .lp-flow-steps { grid-template-columns: 1fr; }
}

/* ---------- 18) 品牌 Logo（严格照源站 BrandLogo.vue：flat-top 正六边形 + 三块菱形渐变 + mask 镂空辐条） ---------- */
.lp-logo { display: block; filter: drop-shadow(0 6px 20px rgba(46, 125, 255, .18)); }
/* 暗色（默认）：与源站 PALETTE.dark 一致 */
.lp-lg-top-a { stop-color: #fca5a5; }
.lp-lg-top-b { stop-color: #dc2626; }
.lp-lg-right-a { stop-color: #7cc4ff; }
.lp-lg-right-b { stop-color: #2e7dff; }
.lp-lg-bottom-a { stop-color: #86efac; }
.lp-lg-bottom-b { stop-color: #22c55e; }
/* 亮色：与源站 PALETTE.light 一致 */
html[data-theme="light"] .lp-lg-top-a { stop-color: #f87171; }
html[data-theme="light"] .lp-lg-top-b { stop-color: #b91c1c; }
html[data-theme="light"] .lp-lg-right-a { stop-color: #60a5fa; }
html[data-theme="light"] .lp-lg-right-b { stop-color: #1d4ed8; }
html[data-theme="light"] .lp-lg-bottom-a { stop-color: #4ade80; }
html[data-theme="light"] .lp-lg-bottom-b { stop-color: #15803d; }
