/* roulang page: index */
:root{
  --coral:#F2603F;
  --coral-deep:#D94E2E;
  --plum:#4B2E6F;
  --peach:#FFD9C7;
  --mint:#7FD1B9;
  --bg:#FFF9F4;
  --bg-alt:#F7EFE8;
  --dark:#2A1E33;
  --ink:#1F1B24;
  --ink-2:#6B6472;
  --ink-3:#9A93A0;
  --line:rgba(31,27,36,.08);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 6px 20px rgba(75,46,111,.07);
  --shadow-lg:0 14px 36px rgba(75,46,111,.13);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid rgba(242,96,63,.35);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 顶栏 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,249,244,.9);backdrop-filter:saturate(170%) blur(12px);-webkit-backdrop-filter:saturate(170%) blur(12px);border-bottom:1px solid var(--line)}
.header-inner{position:relative;display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{position:relative;width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,#F2603F 0%,#FF8A5C 100%);box-shadow:0 8px 18px rgba(242,96,63,.32);flex:0 0 auto}
.brand-mark::before{content:"";position:absolute;left:50%;top:50%;width:9px;height:9px;border-radius:50%;background:#fff;transform:translate(-50%,-50%)}
.brand-mark::after{content:"";position:absolute;left:50%;top:50%;width:17px;height:17px;border-radius:50%;border:2px solid rgba(255,255,255,.75);transform:translate(-50%,-50%)}
.brand-text strong{display:block;font-size:16px;font-weight:800;line-height:1.15;letter-spacing:-.2px}
.brand-text em{display:block;font-style:normal;font-size:11px;font-weight:700;letter-spacing:.16em;color:var(--coral);line-height:1.4}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{padding:9px 15px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-2);transition:color .18s ease,background .18s ease}
.main-nav a:hover{color:var(--ink);background:var(--bg-alt)}
.main-nav a.active{color:#fff;background:var(--plum);box-shadow:0 6px 14px rgba(75,46,111,.24)}
.header-cta{flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;margin-left:auto}
.nav-toggle span{display:block;position:relative;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:14px 28px;border-radius:999px;font-size:15px;font-weight:700;line-height:1;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 10px 22px rgba(242,96,63,.28)}
.btn-primary:hover{background:var(--coral-deep);transform:translateY(-1px);box-shadow:0 14px 28px rgba(217,78,46,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(217,78,46,.28)}
.btn-ghost{border:1px solid rgba(75,46,111,.34);color:var(--plum);background:transparent}
.btn-ghost:hover{background:rgba(75,46,111,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--alt{background:var(--bg-alt)}
.section--soft{background:#FFF4EC}
.section-head{max-width:760px;margin-bottom:42px}
.eyebrow{display:inline-block;margin-bottom:14px;font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--coral)}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.32;letter-spacing:-.4px}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:68ch}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.section-head--center p{margin-left:auto;margin-right:auto}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:58px 0 72px;background:radial-gradient(900px 460px at 8% -12%,#FFE1D0 0%,rgba(255,225,208,0) 62%),radial-gradient(700px 420px at 96% 8%,#EFE6F8 0%,rgba(239,230,248,0) 60%),linear-gradient(180deg,#FFF6EF 0%,var(--bg) 100%)}
.hero-grid{display:grid;grid-template-columns:1.32fr 1fr;gap:54px;align-items:start}
.hero-copy h1{font-size:clamp(30px,4.2vw,50px);font-weight:800;line-height:1.2;letter-spacing:-.8px;margin-bottom:16px}
.hero-sub{font-size:clamp(17px,1.6vw,20px);font-weight:700;color:var(--plum);margin-bottom:16px}
.hero-lead{font-size:16px;color:var(--ink-2);max-width:60ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.hero-facts strong{display:block;font-size:15px;font-weight:700;color:var(--ink)}
.hero-facts span{display:block;font-size:13px;color:var(--ink-3);margin-top:2px}
.quiz-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow-lg)}
.quiz-badge{display:inline-block;padding:5px 12px;border-radius:999px;background:var(--peach);color:var(--coral-deep);font-size:12px;font-weight:800;letter-spacing:.06em;margin-bottom:14px}
.quiz-card h2{font-size:21px;font-weight:800;line-height:1.4;letter-spacing:-.3px}
.quiz-card > p.quiz-intro{margin-top:8px;font-size:13.5px;color:var(--ink-2)}
.quiz-step{margin-top:20px;padding-top:18px;border-top:1px dashed rgba(31,27,36,.12)}
.quiz-q{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:10px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;padding:8px 14px;border-radius:999px;border:1px solid rgba(31,27,36,.13);background:#fff;font-size:13.5px;color:var(--ink-2);transition:.18s ease}
.chip:hover{border-color:var(--coral);color:var(--coral-deep)}
.chip.is-on{background:var(--coral);border-color:var(--coral);color:#fff;box-shadow:0 6px 14px rgba(242,96,63,.28)}
.quiz-result{margin-top:20px;padding:14px 16px;border-radius:14px;background:var(--bg-alt);border:1px dashed rgba(75,46,111,.26)}
.quiz-result span{display:block;font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--plum);margin-bottom:4px}
.quiz-result p{font-size:14px;color:var(--ink-2)}
.quiz-card .btn{margin-top:18px}

/* ============ Pill 条 ============ */
.pill-bar{position:relative;background:linear-gradient(180deg,var(--bg) 0%,var(--bg) 100%);padding-bottom:6px}
.pill-scroll{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:16px 0 14px;scrollbar-width:none;-ms-overflow-style:none}
.pill-scroll::-webkit-scrollbar{display:none}
.pill{flex:0 0 auto;padding:10px 18px;border-radius:999px;border:1px solid rgba(31,27,36,.11);background:#fff;font-size:14px;font-weight:600;color:var(--ink-2);transition:.18s ease}
.pill:hover{border-color:var(--coral);color:var(--coral-deep);transform:translateY(-1px)}
.pill.is-active{background:var(--coral);border-color:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(242,96,63,.3)}

/* ============ 痛点 ============ */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pain-card{padding:26px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.pain-num{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--coral);margin-bottom:12px}
.pain-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.pain-card p{font-size:14px;color:var(--ink-2)}

/* ============ 价值主张 ============ */
.value-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.value-main{grid-column:span 6;padding:32px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);display:flex;flex-direction:column}
.value-main figure{margin:0 0 22px;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.value-main img{width:100%;aspect-ratio:16/10;object-fit:cover}
.value-main h3{font-size:22px;font-weight:800;letter-spacing:-.3px;margin-bottom:10px}
.value-main p{font-size:15px;color:var(--ink-2)}
.value-side{grid-column:span 3;padding:28px 24px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease}
.value-side:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.value-side .vicon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;font-size:17px;font-weight:800;margin-bottom:18px;background:rgba(127,209,185,.28);color:#2C7F66}
.value-side:nth-child(3) .vicon{background:rgba(255,217,199,.72);color:var(--coral-deep)}
.value-side h3{font-size:18px;font-weight:700;margin-bottom:8px}
.value-side p{font-size:14px;color:var(--ink-2)}

/* ============ 功能分组 ============ */
.feat-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feat-group{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.feat-group > h3{font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--coral);margin-bottom:18px}
.feat-list{display:grid;gap:12px}
.feat-item{display:flex;gap:14px;padding:16px;border-radius:14px;background:var(--bg);border:1px solid rgba(31,27,36,.06);transition:background .18s ease,transform .18s ease}
.feat-item:hover{background:#FFF1E8;transform:translateX(2px)}
.feat-ico{flex:0 0 auto;width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:15px;font-weight:800;background:rgba(75,46,111,.1);color:var(--plum)}
.feat-item h4{font-size:15px;font-weight:700;margin-bottom:3px}
.feat-item p{font-size:13.5px;color:var(--ink-2);line-height:1.7}

/* ============ 同城雷达 ============ */
.radar-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.radar-copy h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.32;letter-spacing:-.4px;margin-bottom:14px}
.radar-copy > p{font-size:16px;color:var(--ink-2);max-width:56ch}
.radar-list{display:grid;gap:14px;margin-top:26px}
.radar-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2)}
.radar-list li::before{content:"";flex:0 0 auto;width:8px;height:8px;margin-top:11px;border-radius:50%;background:var(--coral);box-shadow:0 0 0 4px rgba(242,96,63,.16)}
.radar-visual{position:relative;aspect-ratio:16/12;border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-lg);background-size:cover;background-position:center}
.radar-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(145deg,rgba(42,30,51,.62),rgba(242,96,63,.34))}
.radar-visual .dot{position:absolute;width:12px;height:12px;border-radius:50%;background:#FFB69C;box-shadow:0 0 0 7px rgba(255,182,156,.26);z-index:2;animation:radarPulse 3.4s ease-in-out infinite}
.radar-visual .d1{left:20%;top:26%}
.radar-visual .d2{left:62%;top:40%;animation-delay:.6s}
.radar-visual .d3{left:36%;top:68%;animation-delay:1.2s}
.radar-visual .d4{left:78%;top:22%;animation-delay:1.8s}
.radar-visual .d5{left:70%;top:74%;animation-delay:2.4s}
@keyframes radarPulse{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.28);opacity:1}}

/* ============ 使用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-body{padding:18px 18px 20px}
.scene-body h3{font-size:16.5px;font-weight:700;margin-bottom:7px}
.scene-body p{font-size:13.8px;color:var(--ink-2);line-height:1.72}

/* ============ 场景演示 ============ */
.demo-wrap{background:linear-gradient(180deg,#F7EFE8 0%,#FFF9F4 100%)}
.phone-row{display:flex;justify-content:center;align-items:flex-end;gap:28px;padding-top:16px}
.phone{position:relative;width:196px;flex:0 0 auto;border-radius:26px;padding:7px;background:var(--dark);box-shadow:0 18px 38px rgba(42,30,51,.22)}
.phone img{width:100%;aspect-ratio:9/16;object-fit:cover;border-radius:20px}
.phone:nth-child(2){transform:translateY(-26px)}
.phone-tag{position:absolute;left:50%;bottom:-16px;transform:translateX(-50%);white-space:nowrap;padding:5px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12px;font-weight:700;color:var(--plum);box-shadow:var(--shadow)}
.demo-dots{display:flex;justify-content:center;gap:8px;margin-top:56px}
.demo-dots i{width:8px;height:8px;border-radius:50%;background:rgba(75,46,111,.22);transition:.2s}
.demo-dots i.on{width:24px;border-radius:999px;background:var(--coral)}

/* ============ 破冰话题 ============ */
.ice-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:32px;align-items:start}
.ice-list{display:grid;gap:16px}
.ice-item{display:flex;gap:16px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}
.ice-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.ice-idx{flex:0 0 auto;width:40px;height:40px;border-radius:14px;display:grid;place-items:center;font-size:15px;font-weight:800;background:var(--peach);color:var(--coral-deep)}
.ice-item h3{font-size:16.5px;font-weight:700;margin-bottom:6px;line-height:1.5}
.ice-item p{font-size:14px;color:var(--ink-2)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.tag-cloud a{padding:8px 15px;border-radius:999px;background:var(--bg-alt);font-size:13.5px;font-weight:600;color:var(--ink-2);transition:.18s ease}
.tag-cloud a:hover{background:var(--coral);color:#fff;transform:translateY(-1px)}
.ice-side h3{font-size:15px;font-weight:800;letter-spacing:.1em;color:var(--plum);margin-bottom:14px}

/* ============ 安全 ============ */
.safety-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.safety-card{padding:26px 22px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}
.safety-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.safety-card .sicon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:16px;font-weight:800;margin-bottom:16px;background:rgba(127,209,185,.26);color:#2C7F66}
.safety-card h3{font-size:16.5px;font-weight:700;margin-bottom:7px}
.safety-card p{font-size:13.8px;color:var(--ink-2)}

/* ============ 口碑墙 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote-card{padding:24px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.quote-card:nth-child(2n){background:#FFF4EC}
.quote-card p{font-size:14.5px;color:var(--ink);line-height:1.78}
.quote-card span{display:inline-block;margin-top:14px;padding:5px 12px;border-radius:999px;background:rgba(75,46,111,.09);font-size:12px;font-weight:700;color:var(--plum)}
.quote-note{margin-top:22px;font-size:13px;color:var(--ink-3)}

/* ============ 同城故事 ============ */
.story-list{display:grid;gap:24px}
.story-card{display:grid;grid-template-columns:.42fr .58fr;background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}
.story-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.story-card img{width:100%;height:100%;object-fit:cover;min-height:220px}
.story-body{padding:30px 32px}
.story-body h3{font-size:21px;font-weight:800;line-height:1.45;letter-spacing:-.3px;margin-bottom:10px}
.story-body p{font-size:14.8px;color:var(--ink-2)}

/* ============ 会员权益 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:stretch}
.plan-card{position:relative;padding:30px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.plan-card.is-pro{border:1.5px solid var(--coral);box-shadow:0 16px 38px rgba(242,96,63,.16)}
.plan-badge{position:absolute;top:-13px;right:24px;padding:5px 14px;border-radius:999px;background:var(--coral);color:#fff;font-size:12px;font-weight:800;letter-spacing:.06em}
.plan-card h3{font-size:20px;font-weight:800;margin-bottom:6px}
.plan-card > p{font-size:13.8px;color:var(--ink-2);margin-bottom:18px}
.plan-list{display:grid;gap:11px;margin-bottom:22px}
.plan-list li{display:flex;justify-content:space-between;gap:14px;font-size:14.2px;color:var(--ink-2);padding-bottom:10px;border-bottom:1px dashed rgba(31,27,36,.1)}
.plan-list li:last-child{border-bottom:0;padding-bottom:0}
.plan-list li b{font-weight:700;color:var(--ink);flex:0 0 auto}
.plan-note{font-size:12.5px;color:var(--ink-3);margin-top:14px}

/* ============ 下载区 ============ */
.download{background:var(--dark);color:#fff;padding:78px 0}
.download .eyebrow{color:var(--peach)}
.download h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.32;letter-spacing:-.4px;color:#fff}
.download p.lead{margin-top:14px;font-size:15.5px;color:rgba(255,255,255,.72);max-width:62ch}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.dl-btn{display:flex;align-items:center;gap:14px;min-height:82px;padding:18px 22px;border-radius:16px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);transition:.18s ease}
.dl-btn:hover{background:rgba(242,96,63,.9);border-color:rgba(242,96,63,.9);transform:translateY(-2px);box-shadow:0 14px 30px rgba(242,96,63,.3)}
.dl-btn:active{transform:translateY(0)}
.dl-ico{flex:0 0 auto;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(255,255,255,.14);font-size:14px;font-weight:800;letter-spacing:.02em}
.dl-txt strong{display:block;font-size:16px;font-weight:700;color:#fff}
.dl-txt span{display:block;font-size:12.5px;color:rgba(255,255,255,.66);margin-top:2px}
.dl-btn:hover .dl-txt span{color:rgba(255,255,255,.86)}
.dl-note{margin-top:24px;font-size:13px;color:rgba(255,255,255,.56)}

/* ============ 资讯列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.post-card{display:flex;flex-direction:column;justify-content:space-between;padding:24px 22px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(242,96,63,.35)}
.post-card h3{font-size:16.5px;font-weight:700;line-height:1.55;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card p{font-size:13.8px;color:var(--ink-2);line-height:1.72;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:12.5px;color:var(--ink-3)}
.post-meta .tag{padding:4px 11px;border-radius:999px;background:var(--bg-alt);font-weight:700;color:var(--plum)}
.post-card-link{display:block}
.post-empty{padding:40px 24px;text-align:center;font-size:15px;color:var(--ink-3);background:#fff;border:1px dashed rgba(31,27,36,.16);border-radius:var(--radius)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden;transition:border-color .18s ease}
.faq-item[open]{border-color:rgba(242,96,63,.4)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:16px 22px;font-size:15.5px;font-weight:700;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:var(--bg-alt);color:var(--plum);font-size:17px;font-weight:700;transition:transform .2s ease,background .2s ease}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);background:var(--coral);color:#fff}
.faq-item .faq-a{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2);background:linear-gradient(180deg,#FFF9F4 0%,#FFFDFB 100%)}

/* ============ 收口 CTA ============ */
.closing{background:var(--bg-alt);padding:56px 0}
.closing-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:34px 36px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.closing-inner h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;letter-spacing:-.3px;margin-bottom:8px}
.closing-inner p{font-size:14.5px;color:var(--ink-2);max-width:60ch}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand p{margin-top:14px;font-size:13.8px;line-height:1.8;color:rgba(255,255,255,.62);max-width:34ch}
.footer-col h4{font-size:13px;font-weight:800;letter-spacing:.14em;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s ease}
.footer-col a:hover{color:var(--coral)}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.46)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .section{padding:64px 0}
  .hero{padding:48px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .value-main{grid-column:span 12}
  .value-side{grid-column:span 6}
  .feat-groups{grid-template-columns:1fr}
  .radar-grid{grid-template-columns:1fr;gap:34px}
  .pain-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .safety-grid{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .ice-grid{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:1fr}
  .story-card{grid-template-columns:1fr}
  .story-card img{min-height:200px}
  .closing-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .phone-row{gap:18px}
  .phone{width:168px}
  .phone:nth-child(2){transform:translateY(-16px)}
}
@media (max-width:900px){
  .main-nav{display:none;position:absolute;left:-24px;right:-24px;top:100%;flex-direction:column;align-items:stretch;gap:0;margin-left:0;padding:10px 18px 18px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 18px 32px rgba(42,30,51,.12)}
  .main-nav.is-open{display:flex}
  .main-nav a{padding:14px 16px;border-radius:12px;font-size:15.5px}
  .main-nav a.active{background:rgba(75,46,111,.1);color:var(--plum);box-shadow:none}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section{padding:44px 0}
  .hero{padding:36px 0 46px}
  .hero-facts{grid-template-columns:1fr;gap:14px;margin-top:30px}
  .hero-actions .btn{width:100%}
  .quiz-card{padding:20px}
  .pain-grid,.scene-grid,.safety-grid,.quote-grid,.post-grid,.plan-grid,.value-side{grid-template-columns:1fr}
  .value-side{grid-column:span 12}
  .phone-row{overflow-x:auto;justify-content:flex-start;gap:16px;padding:16px 2px 26px;scrollbar-width:none}
  .phone-row::-webkit-scrollbar{display:none}
  .phone{width:150px}
  .phone:nth-child(2){transform:none}
  .demo-dots{margin-top:8px}
  .footer-grid{grid-template-columns:1fr}
  .closing-inner{padding:24px}
  .story-body{padding:22px}
  .download{padding:52px 0}
  .dl-btn{padding:16px 18px;min-height:76px}
  .tag-cloud{padding:18px}
  .ice-item{padding:18px}
}
@media (min-width:1025px){
  .pill-scroll{justify-content:center}
}

/* roulang page: category1 */
:root{
  --coral:#F2603F;
  --coral-deep:#D94E2E;
  --plum:#4B2E6F;
  --peach:#FFD9C7;
  --mint:#7FD1B9;
  --bg:#FFF9F4;
  --bg-alt:#F7EFE8;
  --dark:#2A1E33;
  --ink:#1F1B24;
  --ink-2:#6B6472;
  --ink-3:#9A93A0;
  --line:rgba(31,27,36,.08);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 6px 20px rgba(75,46,111,.07);
  --shadow-lg:0 14px 36px rgba(75,46,111,.13);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
/* ============ 顶栏 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,249,244,.9);backdrop-filter:saturate(170%) blur(12px);-webkit-backdrop-filter:saturate(170%) blur(12px);border-bottom:1px solid var(--line)}
.header-inner{position:relative;display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{position:relative;width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,#F2603F 0%,#FF8A5C 100%);box-shadow:0 8px 18px rgba(242,96,63,.32);flex:0 0 auto}
.brand-mark::before{content:"";position:absolute;left:50%;top:50%;width:9px;height:9px;border-radius:50%;background:#fff;transform:translate(-50%,-50%)}
.brand-mark::after{content:"";position:absolute;left:50%;top:50%;width:17px;height:17px;border-radius:50%;border:2px solid rgba(255,255,255,.75);transform:translate(-50%,-50%)}
.brand-text strong{display:block;font-size:16px;font-weight:800;line-height:1.15;letter-spacing:-.2px}
.brand-text em{display:block;font-style:normal;font-size:11px;font-weight:700;letter-spacing:.16em;color:var(--coral);line-height:1.4}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{padding:9px 15px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-2);transition:color .18s ease,background .18s ease}
.main-nav a:hover{color:var(--ink);background:var(--bg-alt)}
.main-nav a.active{color:#fff;background:var(--plum);box-shadow:0 6px 14px rgba(75,46,111,.24)}
.header-cta{flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;margin-left:auto}
.nav-toggle span{display:block;position:relative;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:14px 28px;border-radius:999px;font-size:15px;font-weight:700;line-height:1;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 10px 22px rgba(242,96,63,.28)}
.btn-primary:hover{background:var(--coral-deep);transform:translateY(-1px);box-shadow:0 14px 28px rgba(217,78,46,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(217,78,46,.28)}
.btn-ghost{border:1px solid rgba(75,46,111,.34);color:var(--plum);background:transparent}
.btn-ghost:hover{background:rgba(75,46,111,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,summary:focus-visible,.nav-toggle:focus-visible{outline:3px solid rgba(242,96,63,.35);outline-offset:2px}
/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--alt{background:var(--bg-alt)}
.section--soft{background:#FFF4EC}
.section--dark{background:var(--dark);color:#fff}
.section-head{max-width:760px;margin-bottom:42px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-block;margin-bottom:14px;font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--coral)}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.32;letter-spacing:-.4px}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-2);max-width:68ch}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:var(--peach);color:var(--coral-deep);font-size:12px;font-weight:800;letter-spacing:.04em}
.tag--mint{background:rgba(127,209,185,.22);color:#2C7A65}
.tag--plum{background:rgba(75,46,111,.1);color:var(--plum)}
/* ============ 分类页顶部 ============ */
.crumb{padding:22px 0 0;font-size:13.5px;color:var(--ink-3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li::after{content:"/";margin-left:8px;color:rgba(31,27,36,.2)}
.crumb li:last-child::after{content:"";margin:0}
.crumb a:hover{color:var(--coral-deep)}
.crumb .current{color:var(--ink-2);font-weight:600}
.cat-head{padding:26px 0 62px;background:linear-gradient(180deg,#FFF6EF 0%,var(--bg) 100%);border-bottom:1px solid var(--line)}
.cat-head-grid{display:grid;grid-template-columns:1.55fr .8fr;gap:48px;align-items:center}
.cat-head h1{font-size:clamp(30px,4.2vw,50px);font-weight:800;line-height:1.18;letter-spacing:-.8px;margin-bottom:16px}
.cat-head .cat-lead{font-size:17px;color:var(--ink-2);max-width:56ch}
.cat-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.cat-head-figure{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid rgba(31,27,36,.06)}
.cat-head-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.cat-head-figure figcaption{position:absolute;left:14px;bottom:14px;padding:6px 12px;border-radius:999px;background:rgba(42,30,51,.72);color:#fff;font-size:12px;font-weight:600;letter-spacing:.04em}
/* ============ 话题卡网格 ============ */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.topic-card{display:flex;flex-direction:column;height:100%;padding:26px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(242,96,63,.3)}
.topic-card__num{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--coral);margin-bottom:12px}
.topic-card h3{font-size:19px;font-weight:700;line-height:1.45;letter-spacing:-.2px;margin-bottom:10px}
.topic-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.topic-more{display:flex;justify-content:center;margin-top:38px}
/* ============ 破冰话术 ============ */
.script-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.script-card{padding:28px 24px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.script-card h3{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:18px}
.script-card h3 i{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;background:var(--peach);color:var(--coral-deep);font-size:13px}
.script-list li{position:relative;padding-left:34px;font-size:14.5px;color:var(--ink-2);line-height:1.8;margin-bottom:16px}
.script-list li:last-child{margin-bottom:0}
.script-list li span{position:absolute;left:0;top:2px;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;border:1px solid rgba(242,96,63,.4);color:var(--coral-deep);font-size:11.5px;font-weight:800}
/* ============ 场景专题 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-card__body{padding:18px 18px 22px}
.scene-card h3{font-size:16.5px;font-weight:700;line-height:1.45;margin-bottom:8px}
.scene-card p{font-size:13.5px;color:var(--ink-2);line-height:1.75}
/* ============ 三天清单 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.plan-card{position:relative;padding:30px 26px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
.plan-card::before{content:"";position:absolute;left:26px;top:0;width:44px;height:4px;border-radius:0 0 6px 6px;background:var(--coral)}
.plan-day{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--plum);margin-bottom:10px}
.plan-card h3{font-size:18px;font-weight:700;margin-bottom:12px}
.plan-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
/* ============ 安全守则 ============ */
.safety-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}
.safety-list li{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid rgba(31,27,36,.08)}
.safety-list li:last-child{border-bottom:0;padding-bottom:0}
.safety-list i{flex:0 0 auto;width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;background:var(--peach);color:var(--coral-deep);font-size:16px}
.safety-list h3{font-size:17px;font-weight:700;margin-bottom:6px}
.safety-list p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.safety-figure{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid rgba(31,27,36,.06)}
.safety-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
/* ============ CMS 资讯列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{display:flex;flex-direction:column;height:100%;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(242,96,63,.28)}
.post-card__link{display:block;flex:1 1 auto}
.post-card h3{font-size:18px;font-weight:700;line-height:1.5;letter-spacing:-.2px;margin-bottom:10px;color:var(--ink)}
.post-card:hover h3{color:var(--coral-deep)}
.post-card p{font-size:14px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-3)}
.post-meta .tag{font-size:11.5px;padding:4px 10px}
.empty-state{padding:44px 24px;border-radius:var(--radius);border:1px dashed rgba(31,27,36,.16);background:#fff;text-align:center;color:var(--ink-2);font-size:15px;grid-column:1/-1}
/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);box-shadow:var(--shadow);margin-bottom:14px;overflow:hidden}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:16px 22px;font-size:16px;font-weight:700;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:var(--bg-alt);color:var(--plum);font-size:16px;font-weight:700;transition:transform .18s ease,background .18s ease}
.faq-item[open] summary::after{content:"–";background:var(--coral);color:#fff;transform:rotate(180deg)}
.faq-item[open] summary{color:var(--coral-deep)}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2);line-height:1.85}
/* ============ 下载区 ============ */
.download-band{background:var(--dark);color:#fff;padding:76px 0}
.download-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.download-band h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.4px;margin-bottom:14px;color:#fff}
.download-band p{font-size:15px;color:rgba(255,255,255,.72);max-width:56ch}
.dl-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.dl-btn{display:flex;flex-direction:column;align-items:center;gap:8px;padding:20px 12px;border-radius:var(--radius-sm);background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);color:#fff;font-size:14px;font-weight:700;text-align:center;transition:background .18s ease,transform .18s ease,border-color .18s ease}
.dl-btn i{font-size:22px;color:var(--peach)}
.dl-btn span{font-size:12px;font-weight:500;color:rgba(255,255,255,.55)}
.dl-btn:hover{background:rgba(242,96,63,.9);border-color:transparent;transform:translateY(-2px)}
.dl-btn:hover i,.dl-btn:hover span{color:#fff}
.dl-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.5)}
/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:var(--peach)}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.62);max-width:34ch;line-height:1.8}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s ease}
.footer-col a:hover{color:var(--coral)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:rgba(255,255,255,.46)}
/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .section{padding:64px 0}
  .cat-head{padding:20px 0 48px}
  .cat-head-grid{grid-template-columns:1fr;gap:30px}
  .cat-head-figure{max-width:460px}
  .topic-grid,.script-grid,.post-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .plan-grid{grid-template-columns:1fr}
  .safety-grid{grid-template-columns:1fr;gap:32px}
  .download-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:640px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .section{padding:44px 0}
  .header-inner{min-height:64px;gap:12px}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .main-nav{position:absolute;left:-18px;right:-18px;top:100%;flex-direction:column;align-items:stretch;gap:0;padding:8px 18px 14px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);display:none}
  .main-nav.is-open{display:flex}
  .main-nav a{padding:13px 8px;min-height:48px;display:flex;align-items:center;border-radius:0;border-bottom:1px solid rgba(31,27,36,.06)}
  .main-nav a.active{background:transparent;color:var(--coral-deep);box-shadow:none;font-weight:800}
  .cat-head h1{font-size:30px}
  .topic-grid,.script-grid,.post-grid,.scene-grid{grid-template-columns:1fr}
  .cat-tags .tag{font-size:11.5px}
  .dl-buttons{grid-template-columns:1fr}
  .dl-btn{flex-direction:row;justify-content:flex-start;gap:14px;padding:16px 18px;text-align:left}
  .dl-btn span{margin-left:auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: article */
:root{
  --coral:#F2603F;
  --coral-deep:#D94E2E;
  --plum:#4B2E6F;
  --peach:#FFD9C7;
  --mint:#7FD1B9;
  --bg:#FFF9F4;
  --bg-alt:#F7EFE8;
  --dark:#2A1E33;
  --ink:#1F1B24;
  --ink-2:#6B6472;
  --ink-3:#9A93A0;
  --line:rgba(31,27,36,.08);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 6px 20px rgba(75,46,111,.07);
  --shadow-lg:0 14px 36px rgba(75,46,111,.13);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
h1,h2,h3,h4,h5,h6,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font:inherit;font-family:var(--font)}
::selection{background:var(--peach);color:var(--ink)}
a:focus-visible,button:focus-visible{outline:3px solid rgba(242,96,63,.4);outline-offset:3px;border-radius:10px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.row{max-width:none;margin-left:0;margin-right:0}
.columns{padding-left:0;padding-right:0}
body,button,input,select,textarea{font-family:var(--font)}
/* ============ 顶栏 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,249,244,.9);backdrop-filter:saturate(170%) blur(12px);-webkit-backdrop-filter:saturate(170%) blur(12px);border-bottom:1px solid var(--line)}
.header-inner{position:relative;display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{position:relative;width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,#F2603F 0%,#FF8A5C 100%);box-shadow:0 8px 18px rgba(242,96,63,.32);flex:0 0 auto}
.brand-mark::before{content:"";position:absolute;left:50%;top:50%;width:9px;height:9px;border-radius:50%;background:#fff;transform:translate(-50%,-50%)}
.brand-mark::after{content:"";position:absolute;left:50%;top:50%;width:17px;height:17px;border-radius:50%;border:2px solid rgba(255,255,255,.75);transform:translate(-50%,-50%)}
.brand-text strong{display:block;font-size:16px;font-weight:800;line-height:1.15;letter-spacing:-.2px}
.brand-text em{display:block;font-style:normal;font-size:11px;font-weight:700;letter-spacing:.16em;color:var(--coral);line-height:1.4}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{padding:9px 15px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-2);transition:color .18s ease,background .18s ease}
.main-nav a:hover{color:var(--ink);background:var(--bg-alt)}
.main-nav a.active{color:#fff;background:var(--plum);box-shadow:0 6px 14px rgba(75,46,111,.24)}
.header-cta{flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;margin-left:auto}
.nav-toggle span{display:block;position:relative;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:14px 28px;border-radius:999px;font-size:15px;font-weight:700;line-height:1;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.btn-primary{background:var(--coral);color:#fff;box-shadow:0 10px 22px rgba(242,96,63,.28)}
.btn-primary:hover{background:var(--coral-deep);transform:translateY(-1px);box-shadow:0 14px 28px rgba(217,78,46,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(217,78,46,.28)}
.btn-ghost{border:1px solid rgba(75,46,111,.34);color:var(--plum);background:transparent}
.btn-ghost:hover{background:rgba(75,46,111,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--dark);border:1px solid rgba(255,255,255,.7)}
.btn-light:hover{background:var(--peach);color:var(--coral-deep);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
/* ============ 文章头 ============ */
.article-hero{position:relative;padding:34px 0 46px;background:radial-gradient(760px 340px at 6% -20%,#FFE1D0 0%,rgba(255,225,208,0) 62%),radial-gradient(620px 320px at 98% 0%,#EFE6F8 0%,rgba(239,230,248,0) 60%),linear-gradient(180deg,#FFF6EF 0%,var(--bg) 100%);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-3);margin-bottom:22px}
.breadcrumb a{color:var(--ink-2);transition:color .18s ease}
.breadcrumb a:hover{color:var(--coral-deep)}
.breadcrumb .sep{color:rgba(31,27,36,.22)}
.breadcrumb .current{color:var(--ink-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:900px}
.article-head h1{font-size:clamp(26px,4vw,42px);font-weight:800;line-height:1.28;letter-spacing:-.6px;color:var(--ink)}
.article-desc{margin-top:16px;font-size:16.5px;line-height:1.85;color:var(--ink-2);max-width:70ch}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px;font-size:13.5px;color:var(--ink-3)}
.article-meta .tag{display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;background:var(--peach);color:var(--coral-deep);font-size:12px;font-weight:800;letter-spacing:.04em}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(31,27,36,.2)}
/* ============ 布局 ============ */
.article-section{padding:56px 0 84px;background:var(--bg)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:40px;align-items:start;max-width:none;margin:0;padding:0}
.article-main{min-width:0}
.article-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:44px;box-shadow:var(--shadow)}
/* ============ 正文排版 ============ */
.article-body{max-width:760px;font-size:16px;line-height:1.85;color:var(--ink);word-wrap:break-word;overflow-wrap:break-word}
.article-body p{margin:0 0 1.05em}
.article-body h2{position:relative;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.42;margin:1.7em 0 .7em;padding-left:16px;letter-spacing:-.3px;color:var(--ink)}
.article-body h2::before{content:"";position:absolute;left:0;top:.3em;width:3px;height:1.05em;border-radius:3px;background:var(--coral)}
.article-body h3{position:relative;font-size:20px;font-weight:700;line-height:1.5;margin:1.4em 0 .55em;padding-left:14px;color:var(--plum)}
.article-body h3::before{content:"";position:absolute;left:0;top:.34em;width:3px;height:.95em;border-radius:3px;background:rgba(242,96,63,.5)}
.article-body h4{font-size:17px;font-weight:700;margin:1.2em 0 .5em;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.45em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.35em 0}
.article-body li::marker{color:var(--coral)}
.article-body a{color:var(--coral-deep);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:color .18s ease}
.article-body a:hover{color:var(--plum)}
.article-body img{border-radius:14px;border:1px solid var(--line);margin:1.3em auto}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px}
.article-body blockquote{margin:1.3em 0;padding:18px 22px;background:var(--bg-alt);border-left:3px solid var(--coral);border-radius:0 14px 14px 0;color:var(--ink-2);font-size:15.5px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body strong{font-weight:700;color:var(--ink)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body table{width:100%;border-collapse:collapse;margin:1.3em 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:var(--bg-alt);font-weight:700;color:var(--plum)}
.article-body code{background:var(--bg-alt);border-radius:6px;padding:2px 6px;font-size:14px}
.article-empty{text-align:center;padding:36px 10px 20px}
.article-empty h2{font-size:24px;font-weight:800;color:var(--ink)}
.article-empty p{margin:14px auto 26px;color:var(--ink-2);max-width:36ch}
/* ============ 文中下载条 ============ */
.dl-strip{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;margin-top:38px;padding:24px 26px;border-radius:18px;background:linear-gradient(120deg,#FFF1E8 0%,#F7EFE8 100%);border:1px solid rgba(242,96,63,.18)}
.dl-strip strong{display:block;font-size:16.5px;font-weight:800;color:var(--plum);line-height:1.5}
.dl-strip p{margin-top:6px;font-size:14px;color:var(--ink-2);line-height:1.7}
/* ============ 相关推荐 ============ */
.related{margin-top:38px}
.related-head h2{font-size:22px;font-weight:700;letter-spacing:-.3px}
.related-head p{margin-top:8px;font-size:14px;color:var(--ink-2)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:20px}
.related-card{display:flex;flex-direction:column;gap:10px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(242,96,63,.28)}
.related-card h3{font-size:16px;font-weight:700;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card p{font-size:13.5px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card span{font-size:12.5px;font-weight:700;color:var(--coral-deep)}
/* ============ 返回入口 ============ */
.back-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.back-links a{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:999px;font-size:14px;font-weight:700;border:1px solid rgba(75,46,111,.24);color:var(--plum);transition:background .18s ease,transform .18s ease,border-color .18s ease}
.back-links a:hover{background:rgba(75,46,111,.08);transform:translateY(-1px);border-color:rgba(75,46,111,.4)}
/* ============ 侧栏 ============ */
.article-side{position:sticky;top:96px;display:grid;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow)}
.side-card h3{font-size:15px;font-weight:800;color:var(--plum);letter-spacing:.02em}
.side-card .side-note{margin-top:8px;font-size:13px;color:var(--ink-2);line-height:1.7}
.side-figure{margin:0 0 16px;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.side-figure img{width:100%;height:170px;object-fit:cover}
.side-dl{display:grid;gap:10px;margin-top:16px}
.side-dl a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 16px;border-radius:12px;background:var(--bg-alt);border:1px solid transparent;font-size:14px;font-weight:700;color:var(--ink);transition:background .18s ease,border-color .18s ease,transform .18s ease}
.side-dl a:hover{background:#fff;border-color:rgba(242,96,63,.35);transform:translateY(-1px)}
.side-dl a i{color:var(--coral);font-size:15px}
.side-dl a em{font-style:normal;font-size:12px;font-weight:600;color:var(--ink-3)}
.side-list{list-style:none;display:grid;gap:14px;margin-top:16px}
.side-list li{padding-left:14px;position:relative;font-size:13.8px;line-height:1.7;color:var(--ink-2)}
.side-list li::before{content:"";position:absolute;left:0;top:.66em;width:6px;height:6px;border-radius:50%;background:var(--mint)}
.side-list li strong{display:block;color:var(--ink);font-size:14px;font-weight:700;margin-bottom:2px}
/* ============ 下载深色带 ============ */
.cta-band{background:var(--dark);color:#fff;padding:72px 0}
.cta-inner{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.cta-inner h2{font-size:clamp(23px,2.8vw,32px);font-weight:800;line-height:1.35;letter-spacing:-.4px}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.66);max-width:44ch}
.dl-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.dl-btn{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-height:104px;padding:18px 12px;border-radius:16px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);color:#fff;transition:background .18s ease,transform .18s ease,border-color .18s ease}
.dl-btn i{font-size:20px;color:var(--peach)}
.dl-btn strong{font-size:14.5px;font-weight:700;line-height:1.3}
.dl-btn span{font-size:12px;color:rgba(255,255,255,.55)}
.dl-btn:hover{background:rgba(242,96,63,.24);border-color:rgba(242,96,63,.6);transform:translateY(-2px)}
.dl-btn:active{transform:translateY(0)}
/* ============ 页脚 ============ */
.site-footer{background:#241A2C;color:rgba(255,255,255,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.site-footer .brand-text strong{color:#fff}
.site-footer .brand-text em{color:var(--peach)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;max-width:36ch;color:rgba(255,255,255,.6)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:color .18s ease}
.footer-col a:hover{color:var(--coral)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.45)}
/* ============ 响应式 ============ */
@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:32px}
  .article-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .article-card{padding:32px}
}
@media (max-width:900px){
  .main-nav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:2px;margin:0;padding:10px 18px 18px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg)}
  .main-nav.is-open{display:flex}
  .main-nav a{padding:13px 12px;border-radius:12px;min-height:48px;display:flex;align-items:center;font-size:15.5px}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{gap:14px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .article-hero{padding:24px 0 34px}
  .article-section{padding:36px 0 56px}
  .article-card{padding:22px 18px;border-radius:18px}
  .article-desc{font-size:15.5px}
  .article-body{font-size:15.6px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .dl-strip{padding:20px 18px;gap:16px}
  .dl-strip .btn{width:100%}
  .article-side{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .back-links a{width:100%;justify-content:center}
  .cta-band{padding:52px 0}
  .dl-buttons{grid-template-columns:1fr}
  .dl-btn{flex-direction:row;justify-content:flex-start;min-height:64px;gap:14px;padding:16px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .brand-text strong{font-size:15px}
}