/* ===== QQ扑克官网 SHARED STYLES — 白金红商务风 ===== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&family=Barlow+Condensed:wght@400;600;700;900&display=swap');

:root {
  --red:      #d42b2b;
  --red-dk:   #a81f1f;
  --red-lt:   #ff4444;
  --red-pale: #fff0f0;
  --blue:     #1a2a4a;
  --blue-lt:  #253660;
  --accent:   #e8a020;
  --white:    #ffffff;
  --off:      #f7f8fa;
  --off2:     #eef0f4;
  --border:   #e2e6ed;
  --text:     #1a1e2a;
  --mute:     #6b7280;
  --light:    #9ca3af;
  --radius:   10px;
  --shadow:   0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg:0 12px 40px rgba(0,0,0,0.12);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;background:var(--white);color:var(--text);line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1120px;margin:0 auto;padding:0 24px}

/* ===== NAV ===== */
.topbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.96);backdrop-filter:blur(12px);border-bottom:2px solid var(--red);padding:0;transition:box-shadow .3s}
.topbar.scrolled{box-shadow:0 2px 20px rgba(0,0,0,0.1)}
.topbar-inner{display:flex;align-items:stretch;justify-content:space-between;height:58px}
.topbar-brand{display:flex;align-items:center;gap:10px;padding:0 24px}
.topbar-logo{width:38px;height:38px;background:var(--red);border-radius:8px;display:flex;align-items:center;justify-content:center;font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:15px;color:white;letter-spacing:-1px;flex-shrink:0}
.topbar-name{font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:1.25rem;color:var(--blue);letter-spacing:.02em}
.topbar-sub{font-size:.58rem;color:var(--mute);letter-spacing:.04em}
.topbar-nav{display:flex;align-items:stretch}
.topbar-nav a{display:flex;align-items:center;padding:0 14px;font-size:.8rem;font-weight:500;color:var(--mute);transition:color .2s,background .2s;white-space:nowrap;border-left:1px solid var(--border);position:relative}
.topbar-nav a::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--red);transform:scaleX(0);transition:transform .2s}
.topbar-nav a:hover{color:var(--red);background:var(--red-pale)}
.topbar-nav a:hover::after{transform:scaleX(1)}
.btn-nav-dl{background:var(--red)!important;color:white!important;font-weight:700!important;padding:0 22px!important;border-left:none!important}
.btn-nav-dl:hover{background:var(--red-dk)!important;color:white!important}
.btn-nav-dl::after{display:none!important}
@media(max-width:900px){.topbar-nav a:not(.btn-nav-dl){display:none}.topbar-inner{padding-right:0}}

/* ===== BREADCRUMB ===== */
.breadcrumb{background:var(--off);border-bottom:1px solid var(--border);padding:9px 0;font-size:.72rem;color:var(--light);margin-top:58px}
.breadcrumb a{color:var(--mute);transition:color .2s}
.breadcrumb a:hover{color:var(--red)}
.breadcrumb .sep{margin:0 6px;color:var(--border)}

/* ===== SECTION LAYOUT ===== */
.section-wrap{padding:72px 0}
.section-wrap.bg-off{background:var(--off)}
.section-wrap.bg-blue{background:var(--blue)}
.section-wrap.bg-red{background:var(--red)}
.section-title{text-align:center;margin-bottom:52px}
.section-eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:.7rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--red);margin-bottom:10px}
.section-eyebrow::before,.section-eyebrow::after{content:'';flex:1;height:1px;width:28px;background:var(--red);opacity:.4}
.section-h2{font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:clamp(1.8rem,3.5vw,2.8rem);color:var(--blue);line-height:1.15;margin-bottom:12px;letter-spacing:.01em}
.section-h2 em{font-style:normal;color:var(--red)}
.section-desc{max-width:580px;margin:0 auto;color:var(--mute);font-size:.93rem;line-height:1.85}
.section-h2.white{color:white}
.section-desc.white{color:rgba(255,255,255,.7)}

/* ===== BUTTONS ===== */
.btn-red{display:inline-flex;align-items:center;gap:9px;background:var(--red);color:white;font-weight:700;font-size:.95rem;padding:13px 30px;border-radius:6px;border:none;cursor:pointer;transition:background .2s,transform .2s,box-shadow .2s;box-shadow:0 4px 16px rgba(212,43,43,.3)}
.btn-red:hover{background:var(--red-dk);transform:translateY(-2px);box-shadow:0 8px 24px rgba(212,43,43,.4)}
.btn-outline-red{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--red);font-weight:600;font-size:.9rem;padding:12px 26px;border-radius:6px;border:2px solid var(--red);cursor:pointer;transition:all .2s}
.btn-outline-red:hover{background:var(--red);color:white;transform:translateY(-2px)}
.btn-outline-white{display:inline-flex;align-items:center;gap:8px;background:transparent;color:white;font-weight:600;font-size:.9rem;padding:12px 26px;border-radius:6px;border:2px solid rgba(255,255,255,.5);cursor:pointer;transition:all .2s}
.btn-outline-white:hover{background:white;color:var(--red)}

/* ===== CARDS ===== */
.card{background:white;border:1px solid var(--border);border-radius:var(--radius);padding:26px 24px;transition:transform .3s,box-shadow .3s,border-color .3s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--red)}
.card-red-top{border-top:3px solid var(--red)}

/* ===== TAGS ===== */
.tag{display:inline-flex;align-items:center;gap:5px;background:var(--red-pale);color:var(--red);font-size:.72rem;font-weight:600;padding:4px 10px;border-radius:4px;border:1px solid rgba(212,43,43,.15)}
.tag-blue{background:#eef2ff;color:var(--blue);border-color:rgba(26,42,74,.15)}
.tag-green{background:#f0fdf4;color:#166534;border-color:rgba(22,101,52,.15)}

/* ===== PROSE ===== */
.prose{max-width:820px;margin:0 auto;font-size:.97rem;line-height:1.95;color:#374151}
.prose h2{font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:1.8rem;color:var(--blue);margin:2.4rem 0 1rem;padding-bottom:.6rem;border-bottom:2px solid var(--red);letter-spacing:.01em}
.prose h3{font-size:1.1rem;font-weight:700;color:var(--blue);margin:1.6rem 0 .7rem}
.prose p{margin-bottom:1.1rem}
.prose ul,.prose ol{padding-left:1.5rem;margin-bottom:1.1rem}
.prose li{margin-bottom:.45rem}
.prose strong{color:var(--red);font-weight:700}
.prose table{width:100%;border-collapse:collapse;margin:1.4rem 0;font-size:.88rem}
.prose th{background:var(--blue);color:white;padding:11px 14px;border:1px solid rgba(255,255,255,.1);text-align:left;font-weight:600}
.prose td{padding:10px 14px;border:1px solid var(--border);color:var(--mute)}
.prose tr:nth-child(even) td{background:var(--off)}
.prose tr:hover td{background:#fff5f5}
.prose blockquote{border-left:4px solid var(--red);padding:14px 22px;background:var(--red-pale);border-radius:0 8px 8px 0;margin:1.4rem 0;color:var(--mute)}
.prose .tip{background:var(--off);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:0 8px 8px 0;padding:18px 22px;margin:1.4rem 0}
.prose .tip-title{font-weight:700;color:var(--blue);margin-bottom:8px;font-size:.9rem}
.prose a{color:var(--red);border-bottom:1px solid rgba(212,43,43,.3);transition:border-color .2s}
.prose a:hover{border-color:var(--red)}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:8px}
.faq-item{background:white;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item.open{border-color:var(--red);box-shadow:0 4px 16px rgba(212,43,43,.1)}
.faq-q{width:100%;background:none;border:none;color:var(--text);font-family:inherit;font-size:.94rem;font-weight:600;text-align:left;padding:18px 22px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;transition:background .2s}
.faq-q:hover{background:var(--red-pale);color:var(--red)}
.faq-icon{width:22px;height:22px;border-radius:50%;background:var(--off2);display:flex;align-items:center;justify-content:center;font-size:.9rem;color:var(--red);transition:transform .25s,background .25s;flex-shrink:0}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--red);color:white}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s;padding:0 22px;color:var(--mute);font-size:.87rem;line-height:1.85}
.faq-item.open .faq-a{max-height:400px;padding-bottom:18px}

/* ===== FOOTER ===== */
.footer{background:var(--blue);color:rgba(255,255,255,.75);padding:36px 0 20px}
.footer-top{display:flex;align-items:flex-start;justify-content:space-between;flex-wrap:wrap;gap:24px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:18px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-logo{width:36px;height:36px;background:var(--red);border-radius:8px;display:flex;align-items:center;justify-content:center;font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:14px;color:white}
.footer-brand-name{font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:1.1rem;color:white}
.footer-brand-sub{font-size:.6rem;color:rgba(255,255,255,.4)}
.footer-about{font-size:.8rem;color:rgba(255,255,255,.5);max-width:320px;line-height:1.7;margin-top:10px}
.footer-cols{display:flex;gap:40px;flex-wrap:wrap}
.footer-col-title{font-size:.75rem;font-weight:700;letter-spacing:.1em;color:white;margin-bottom:12px;text-transform:uppercase}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:.78rem;color:rgba(255,255,255,.5);transition:color .2s}
.footer-links a:hover{color:white}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}
.footer-copy{font-size:.7rem;color:rgba(255,255,255,.35)}
.footer-seo{font-size:.65rem;color:rgba(255,255,255,.2)}
@media(max-width:768px){.footer-top{flex-direction:column}.footer-cols{gap:24px}}

/* ===== REVEAL ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

/* ===== PAGE HERO ===== */
.page-hero{background:var(--blue);padding:70px 0 56px;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;top:-60%;right:-10%;width:600px;height:600px;border-radius:50%;background:rgba(212,43,43,.08);pointer-events:none}
.page-hero::after{content:'';position:absolute;bottom:-40%;left:-5%;width:400px;height:400px;border-radius:50%;background:rgba(255,255,255,.03);pointer-events:none}
.page-hero .container{position:relative;z-index:2}
.page-hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.6);margin-bottom:14px}
.page-hero-eyebrow::before{content:'';width:20px;height:2px;background:var(--red)}
.page-hero h1{font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:clamp(2rem,5vw,3.5rem);color:white;line-height:1.15;margin-bottom:14px;letter-spacing:.01em}
.page-hero h1 em{font-style:normal;color:var(--red);text-shadow:0 0 30px rgba(212,43,43,.5)}
.page-hero-desc{font-size:.97rem;color:rgba(255,255,255,.65);line-height:1.85;margin-bottom:26px;max-width:600px}
.page-hero-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.meta-tag{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:5px;padding:5px 11px;font-size:.73rem;color:rgba(255,255,255,.6)}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:var(--off)}
::-webkit-scrollbar-thumb{background:var(--red);border-radius:3px;opacity:.5}

/* ===== STATS STRIP ===== */
.stat-strip{background:var(--red);padding:28px 0}
.stat-strip .container{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;text-align:center}
@media(max-width:600px){.stat-strip .container{grid-template-columns:repeat(2,1fr)}}
.stat-val{font-family:'Barlow Condensed',sans-serif;font-size:clamp(1.8rem,4vw,2.6rem);font-weight:900;color:white;line-height:1}
.stat-unit{font-size:.85rem;color:rgba(255,255,255,.7)}
.stat-lbl{font-size:.75rem;color:rgba(255,255,255,.7);margin-top:5px;letter-spacing:.04em}

/* ===== NUMBER MARKER ===== */
.num-circle{width:40px;height:40px;background:var(--red);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:'Barlow Condensed',sans-serif;font-weight:900;font-size:1.1rem;color:white;flex-shrink:0}