/* ========================================
   Solar Dusk Theme — Google Chrome Landing
   Sand base + coral/amber/deep-purple accents
   ======================================== */
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes pulse-ring{0%{transform:scale(.85);opacity:.6}50%{transform:scale(1.15);opacity:.2}100%{transform:scale(.85);opacity:.6}}
@keyframes slide-up{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
@keyframes gradient-shift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}

:root{
  --sand:#fdf6f0;--sand-dark:#f5ede4;--ink:#2d1b10;--ink-light:#5c4033;
  --coral:#ef6c4a;--coral-dark:#d04f32;--amber:#f5a623;--amber-light:#fdd87d;
  --plum:#6b21a8;--plum-light:#a855f7;--plum-bg:#f5f0fa;
  --white:#fff;--gray100:#faf8f6;--gray200:#eee9e3;--gray400:#bfb3a8;
  --gray600:#7a6e63;--radius:14px;--radius-sm:8px;--shadow:0 4px 24px rgba(45,27,16,.08);
  --shadow-lg:0 8px 40px rgba(45,27,16,.12);--nav-h:64px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--sand);line-height:1.7;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:var(--coral);text-decoration:none}
a:hover{color:var(--coral-dark)}
button{font-family:inherit;cursor:pointer;border:none}

/* ===== NAV ===== */
.topnav{position:sticky;top:0;z-index:1000;background:rgba(253,246,240,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--gray200);height:var(--nav-h)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;height:100%;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem;color:var(--ink)}
.brand svg{width:30px;height:30px}
.navlist{list-style:none;display:flex;gap:6px}
.navlist a{display:inline-block;padding:8px 18px;border-radius:999px;font-size:.92rem;font-weight:500;color:var(--ink-light);transition:all .2s}
.navlist a:hover{background:var(--sand-dark);color:var(--ink)}
.navlist a.on{background:linear-gradient(135deg,var(--coral),var(--amber));color:#fff;font-weight:600}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:999px;font-size:.95rem;font-weight:600;transition:all .25s;line-height:1.3}
.btn-sun{background:linear-gradient(135deg,var(--coral),var(--amber));color:#fff;box-shadow:0 4px 20px rgba(239,108,74,.35)}
.btn-sun:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(239,108,74,.45)}
.btn-plum{background:linear-gradient(135deg,var(--plum),var(--plum-light));color:#fff;box-shadow:0 4px 20px rgba(107,33,168,.3)}
.btn-plum:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(107,33,168,.4)}
.btn-outline{background:transparent;border:2px solid var(--coral);color:var(--coral)}
.btn-outline:hover{background:var(--coral);color:#fff}
.btn-ghost{background:rgba(255,255,255,.55);backdrop-filter:blur(6px);color:var(--ink);border:1px solid var(--gray200)}
.btn-ghost:hover{background:var(--white)}
.btn-white{background:#fff;color:var(--coral);font-weight:600;box-shadow:var(--shadow)}
.btn-white:hover{transform:translateY(-2px)}
.btn-lg{padding:16px 40px;font-size:1.05rem}
.btn-sm{padding:9px 20px;font-size:.85rem}

/* ===== LAYOUT ===== */
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:80px 0}
.sec-alt{background:var(--sand-dark)}
.sec-plum{background:var(--plum-bg)}
.sec-dark{background:linear-gradient(160deg,#1a0a2e,#2d1b10);color:#fff}
.sec-dark .sec-label{color:var(--amber-light)}
.sec-dark .sec-title{color:#fff}
.sec-hd{text-align:center;margin-bottom:52px}
.sec-label{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--coral);margin-bottom:10px}
.sec-title{font-size:2rem;font-weight:800;line-height:1.3;color:var(--ink)}
.sec-sub{font-size:1.05rem;color:var(--gray600);margin-top:10px;max-width:640px;margin-left:auto;margin-right:auto}

/* ===== HERO ===== */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#fdf6f0 0%,#fde8d8 40%,#f5d0c5 100%);padding:100px 0 80px}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.hero-text{animation:slide-up .7s ease}
.hero-tag{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.7);backdrop-filter:blur(8px);border:1px solid var(--gray200);border-radius:999px;padding:6px 16px;font-size:.8rem;font-weight:600;color:var(--plum);margin-bottom:20px}
.hero-tag svg{width:16px;height:16px}
.hero h1{font-size:2.8rem;font-weight:900;line-height:1.18;margin-bottom:18px;background:linear-gradient(135deg,var(--ink),var(--plum));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:1.15rem;color:var(--ink-light);margin-bottom:32px;max-width:500px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center}
.hero-orb{width:320px;height:320px;border-radius:50%;background:linear-gradient(135deg,var(--coral),var(--amber),var(--plum-light));animation:float 6s ease-in-out infinite;position:relative;box-shadow:0 20px 60px rgba(239,108,74,.3)}
.hero-orb::after{content:"";position:absolute;inset:30px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.3),transparent);animation:pulse-ring 3s ease-in-out infinite}
.hero-badge{position:absolute;background:var(--white);border-radius:var(--radius);padding:12px 18px;box-shadow:var(--shadow-lg);font-size:.82rem;font-weight:600;display:flex;align-items:center;gap:8px}
.hero-badge svg{width:22px;height:22px;flex-shrink:0}
.hero-badge-1{top:15%;right:-10px}
.hero-badge-2{bottom:10%;left:-20px}
.hero-badge-3{top:55%;right:-30px}

/* ===== STATS BAR ===== */
.stats-bar{background:linear-gradient(135deg,var(--coral),var(--amber));padding:40px 0}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-item{color:#fff}
.stat-num{font-size:2.2rem;font-weight:900;line-height:1.2}
.stat-desc{font-size:.88rem;opacity:.9;margin-top:4px}

/* ===== FEATURE CARDS (Mosaic Grid) ===== */
.mosaic{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mos-card{background:var(--white);border-radius:var(--radius);padding:32px 28px;box-shadow:var(--shadow);transition:all .3s;border:1px solid transparent;position:relative;overflow:hidden}
.mos-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--coral),var(--amber));opacity:0;transition:opacity .3s}
.mos-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--coral)}
.mos-card:hover::before{opacity:1}
.mos-icon{width:52px;height:52px;border-radius:12px;background:linear-gradient(135deg,rgba(239,108,74,.12),rgba(245,166,35,.12));display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.mos-icon svg{width:26px;height:26px;color:var(--coral)}
.mos-card h3{font-size:1.1rem;font-weight:700;margin-bottom:8px}
.mos-card p{font-size:.9rem;color:var(--gray600);line-height:1.65}

/* ===== PLATFORM STRIP ===== */
.plat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.plat-card{background:var(--white);border-radius:var(--radius);padding:30px 24px;text-align:center;box-shadow:var(--shadow);transition:all .3s;border:2px solid transparent}
.plat-card:hover{border-color:var(--coral);transform:translateY(-4px)}
.plat-card.featured{border-color:var(--coral);background:linear-gradient(180deg,#fff5f2,#fff)}
.plat-ico{width:48px;height:48px;margin:0 auto 14px;color:var(--ink)}
.plat-ico svg{width:48px;height:48px}
.plat-name{font-size:1.05rem;font-weight:700;margin-bottom:4px}
.plat-ver{font-size:.8rem;color:var(--gray600);margin-bottom:14px}
.plat-note{font-size:.82rem;color:var(--gray600);margin-top:12px}

/* ===== DEEP FEATURE (Split Rows) ===== */
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-bottom:60px}
.split-row:last-child{margin-bottom:0}
.split-row.rev{direction:rtl}
.split-row.rev>*{direction:ltr}
.split-badge{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--coral);margin-bottom:10px}
.split-title{font-size:1.6rem;font-weight:800;margin-bottom:14px;line-height:1.3}
.split-desc{font-size:.95rem;color:var(--ink-light);line-height:1.7;margin-bottom:18px}
.split-visual{background:var(--sand-dark);border-radius:var(--radius);aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;overflow:hidden}
.split-visual svg{width:60%;height:60%;color:var(--coral);opacity:.6}

/* ===== REVIEWS ===== */
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rev-card{background:var(--white);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow);transition:transform .3s}
.rev-card:hover{transform:translateY(-4px)}
.rev-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.rev-avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--coral),var(--amber));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.95rem}
.rev-name{font-weight:700;font-size:.95rem}
.rev-role{font-size:.78rem;color:var(--gray600)}
.rev-stars{color:var(--amber);display:flex;gap:2px;margin-bottom:10px}
.rev-stars svg{width:16px;height:16px}
.rev-text{font-size:.88rem;color:var(--ink-light);line-height:1.65}

/* ===== COMPARISON TABLE ===== */
.cmp-wrap{overflow-x:auto}
.cmp-table{width:100%;border-collapse:collapse;font-size:.9rem}
.cmp-table th,.cmp-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--gray200)}
.cmp-table th{background:var(--sand-dark);font-weight:700;position:sticky;top:0}
.cmp-table td:first-child{font-weight:600}
.cmp-table .hl{color:var(--coral);font-weight:700}
.cmp-table tr:hover td{background:rgba(239,108,74,.04)}

/* ===== FAQ ===== */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--gray200)}
.faq-q{padding:20px 0;font-weight:600;font-size:1rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;user-select:none}
.faq-q svg{width:20px;height:20px;flex-shrink:0;transition:transform .3s;color:var(--coral)}
.faq-item.open .faq-q svg{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;font-size:.92rem;color:var(--ink-light);line-height:1.7}
.faq-item.open .faq-a{max-height:600px;padding-bottom:20px}

/* ===== CTA BANNER ===== */
.cta-banner{background:linear-gradient(135deg,var(--coral),var(--plum));border-radius:var(--radius);padding:56px 48px;text-align:center;color:#fff;box-shadow:0 12px 40px rgba(107,33,168,.25)}
.cta-banner h2{font-size:1.8rem;font-weight:800;margin-bottom:14px}
.cta-banner p{font-size:1.05rem;opacity:.9;margin-bottom:28px;max-width:540px;margin-left:auto;margin-right:auto}

/* ===== DOWNLOAD PAGE ===== */
.dl-hero{background:linear-gradient(160deg,#fde8d8,#f5d0c5,#e8d0f0);padding:80px 0 60px}
.dl-main{background:var(--white);border-radius:var(--radius);padding:44px;box-shadow:var(--shadow-lg);max-width:680px;margin:0 auto;text-align:center}
.dl-main h2{font-size:1.6rem;font-weight:800;margin-bottom:12px}
.dl-meta{display:flex;justify-content:center;gap:24px;margin:16px 0 24px;flex-wrap:wrap}
.dl-meta span{font-size:.85rem;color:var(--gray600);display:flex;align-items:center;gap:6px}
.dl-meta svg{width:16px;height:16px}

/* Steps */
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
.step-card{background:var(--white);border-radius:var(--radius);padding:28px 22px;box-shadow:var(--shadow);position:relative;text-align:center}
.step-num{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--coral),var(--amber));color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:1.1rem}
.step-card h4{font-size:.98rem;font-weight:700;margin-bottom:8px}
.step-card p{font-size:.85rem;color:var(--gray600);line-height:1.6}

/* Version log */
.ver-list{max-width:760px;margin:0 auto}
.ver-item{padding:24px 0;border-bottom:1px solid var(--gray200);display:grid;grid-template-columns:140px 1fr;gap:24px}
.ver-tag{font-size:.78rem;font-weight:700;color:var(--white);background:linear-gradient(135deg,var(--coral),var(--amber));padding:4px 12px;border-radius:999px;display:inline-block;line-height:1.4;height:fit-content}
.ver-date{font-size:.8rem;color:var(--gray600);margin-top:4px}
.ver-body h4{font-size:1rem;font-weight:700;margin-bottom:6px}
.ver-body p{font-size:.88rem;color:var(--ink-light);line-height:1.65}

/* Requirements */
.req-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.req-card{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.req-card h4{font-size:.95rem;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.req-card h4 svg{width:20px;height:20px;color:var(--coral)}
.req-card ul{list-style:none;font-size:.85rem;color:var(--ink-light)}
.req-card ul li{padding:4px 0;padding-left:16px;position:relative}
.req-card ul li::before{content:"·";position:absolute;left:0;color:var(--coral);font-weight:700}

/* Security banner */
.sec-banner{background:linear-gradient(135deg,rgba(239,108,74,.08),rgba(107,33,168,.08));border:1px solid var(--gray200);border-radius:var(--radius);padding:32px;display:flex;align-items:center;gap:20px}
.sec-banner svg{width:40px;height:40px;flex-shrink:0;color:var(--coral)}
.sec-banner h4{font-size:1rem;font-weight:700;margin-bottom:4px}
.sec-banner p{font-size:.88rem;color:var(--ink-light)}

/* ===== ARTICLE PAGE (zh-cn) ===== */
.article-hero{background:linear-gradient(160deg,#fde8d8,#f5d0c5);padding:80px 0 50px;text-align:center}
.article-hero h1{font-size:2.2rem;font-weight:900;margin-bottom:12px}
.article-hero p{font-size:1.05rem;color:var(--ink-light);max-width:600px;margin:0 auto}
.kw-strip{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:24px}
.kw{background:rgba(255,255,255,.7);backdrop-filter:blur(6px);padding:6px 16px;border-radius:999px;font-size:.8rem;font-weight:600;color:var(--plum);border:1px solid rgba(107,33,168,.15)}
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;padding:60px 0}
.article-body h2{font-size:1.5rem;font-weight:800;margin:40px 0 16px;color:var(--ink);padding-bottom:10px;border-bottom:2px solid var(--gray200)}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:1.15rem;font-weight:700;margin:28px 0 10px;color:var(--ink)}
.article-body p{font-size:.94rem;color:var(--ink-light);line-height:1.75;margin-bottom:16px}
.article-body ul,.article-body ol{margin:12px 0 20px 20px;font-size:.92rem;color:var(--ink-light);line-height:1.75}
.article-body blockquote{border-left:4px solid var(--coral);padding:16px 20px;background:rgba(239,108,74,.06);border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:20px 0;font-size:.92rem;color:var(--ink-light)}
.inline-cta{background:linear-gradient(135deg,rgba(239,108,74,.08),rgba(245,166,35,.08));border:1px solid rgba(239,108,74,.2);border-radius:var(--radius);padding:28px;text-align:center;margin:32px 0}
.inline-cta h4{font-size:1.05rem;font-weight:700;margin-bottom:10px}
.inline-cta p{font-size:.88rem;color:var(--ink-light);margin-bottom:16px}

/* Sidebar */
.sidebar{position:sticky;top:calc(var(--nav-h) + 24px)}
.sbox{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);margin-bottom:20px}
.sbox h4{font-size:.95rem;font-weight:700;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--gray200)}
.stoc{list-style:none}
.stoc li{padding:6px 0}
.stoc a{font-size:.85rem;color:var(--ink-light);display:block;padding-left:12px;border-left:2px solid transparent;transition:all .2s}
.stoc a:hover{color:var(--coral);border-left-color:var(--coral)}
.sstat{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.sstat-item{text-align:center;padding:12px;background:var(--sand-dark);border-radius:var(--radius-sm)}
.sstat-num{font-size:1.2rem;font-weight:800;color:var(--coral)}
.sstat-label{font-size:.75rem;color:var(--gray600)}
.side-security{font-size:.8rem;color:var(--gray600);padding:14px;background:rgba(239,108,74,.06);border-radius:var(--radius-sm);line-height:1.6}

/* ===== FOOTER ===== */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);text-align:center;padding:40px 24px;font-size:.84rem;line-height:1.8}
.footer-brand{font-weight:700;color:#fff;font-size:1rem;margin-bottom:8px;display:flex;align-items:center;justify-content:center;gap:8px}
.footer-brand svg{width:22px;height:22px}
.security-line{color:var(--amber-light);margin-bottom:4px}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;text-align:center}
  .hero-desc{margin-left:auto;margin-right:auto}
  .hero-actions{justify-content:center}
  .hero-visual{margin-top:40px}
  .split-row,.split-row.rev{grid-template-columns:1fr;direction:ltr}
  .article-layout{grid-template-columns:1fr}
  .sidebar{position:static}
}
@media(max-width:768px){
  .hero h1{font-size:2rem}
  .sec-title{font-size:1.5rem}
  .mosaic{grid-template-columns:1fr}
  .plat-grid{grid-template-columns:repeat(2,1fr)}
  .rev-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .ver-item{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr 1fr}
  .cta-banner{padding:40px 24px}
  .dl-main{padding:28px 20px}
  .nav-inner{padding:0 16px}
}
@media(max-width:480px){
  .plat-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:1fr 1fr}
  .steps-grid{grid-template-columns:1fr}
  .navlist a{padding:6px 12px;font-size:.82rem}
}