/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:#1a1a2e;background:#f8f9fc;line-height:1.7}

/* ===== Layout ===== */
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== Header ===== */
.header{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%);color:#fff;padding:0;position:sticky;top:0;z-index:100}
.header-inner{display:flex;justify-content:space-between;align-items:center;height:70px}
.logo{font-size:1.4rem;font-weight:800;letter-spacing:1px}
.logo span{color:#e94560}

/* ===== Navigation ===== */
.nav{display:flex;align-items:center;gap:6px}
.nav a{color:rgba(255,255,255,.75);text-decoration:none;padding:8px 14px;font-size:.9rem;border-radius:6px;transition:all .2s;white-space:nowrap}
.nav a:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav a.active{color:#fff;background:rgba(233,69,96,.35);font-weight:600}
.nav .nav-drop{position:relative;display:inline-block}
.nav .nav-drop-wrapper { position: relative; display: inline-block; }
.nav .nav-drop-content{display:none;position:absolute;top:100%;left:0;background:#1a1a2e;border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:6px;min-width:180px;z-index:200;box-shadow:0 8px 30px rgba(0,0,0,.3)}
.nav .nav-drop-wrapper:hover .nav-drop-content{display:block}
.nav .nav-drop-content a{display:block;padding:10px 14px;color:rgba(255,255,255,.7);font-size:.85rem}
.nav .nav-drop-content a:hover{background:rgba(255,255,255,.08);color:#fff}


/* Hamburger */
.hamburger{display:none;flex-direction:column;cursor:pointer;gap:5px;padding:6px;background:none;border:none}
.hamburger span{display:block;width:26px;height:2.5px;background:#fff;border-radius:2px;transition:all .3s}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* Mobile Nav */
.mobile-nav{display:none;position:fixed;top:70px;left:0;right:0;bottom:0;background:#1a1a2e;z-index:99;padding:20px;overflow-y:auto;transform:translateX(100%);transition:transform .3s}
.mobile-nav.open{transform:translateX(0)}
.mobile-nav a{display:block;padding:14px 10px;color:rgba(255,255,255,.7);text-decoration:none;font-size:1rem;border-bottom:1px solid rgba(255,255,255,.06)}
.mobile-nav a:hover,.mobile-nav a.active{color:#e94560}
.mobile-nav .m-sub{display:block;padding:8px 10px 8px 24px;color:rgba(255,255,255,.5);font-size:.88rem;text-decoration:none}

/* ===== Hero ===== */
.hero{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 40%,#0f3460 100%);color:#fff;padding:80px 0;text-align:center}
.hero h1{font-size:2.6rem;font-weight:800;margin-bottom:18px;line-height:1.3}
.hero h1 span{color:#e94560}
.hero p{font-size:1.1rem;color:rgba(255,255,255,.7);max-width:720px;margin:0 auto 36px}
.hero-cta{display:inline-flex;gap:14px;flex-wrap:wrap;justify-content:center}
.hero-cta a{display:inline-block;padding:14px 36px;border-radius:6px;font-weight:700;font-size:.95rem;text-decoration:none;transition:transform .2s,box-shadow .2s}
.hero-cta a:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(233,69,96,.3)}
.btn-primary{background:#e94560;color:#fff}
.btn-outline{border:2px solid rgba(255,255,255,.3);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.08);border-color:#e94560}

/* ===== Section Common ===== */
section{padding:64px 0}
.section-title{text-align:center;margin-bottom:44px}
.section-title h2{font-size:2rem;font-weight:800;margin-bottom:10px}
.section-title p{color:#666;max-width:600px;margin:0 auto;font-size:.95rem}

/* ===== Problems ===== */
.problems{background:#fff}
.problem-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.problem-card{background:#f8f9fc;border-radius:10px;padding:28px 20px;text-align:center;transition:transform .25s,box-shadow .25s}
.problem-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(0,0,0,.08)}
.problem-icon{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:1.4rem}
.problem-card h3{font-size:1rem;margin-bottom:8px}
.problem-card p{font-size:.86rem;color:#666}

/* ===== Advantages ===== */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.adv-card{background:#fff;border-radius:12px;padding:36px 28px;box-shadow:0 2px 12px rgba(0,0,0,.04);transition:transform .25s,box-shadow .25s}
.adv-card:hover{transform:translateY(-4px);box-shadow:0 10px 40px rgba(0,0,0,.08)}
.adv-num{font-size:2.2rem;font-weight:800;color:#e94560;opacity:.3;line-height:1;margin-bottom:6px}
.adv-card h3{font-size:1.15rem;margin-bottom:10px}
.adv-card p{font-size:.9rem;color:#555;line-height:1.7}

/* ===== SVG Diagram ===== */
.diagram-section{background:#fff}
.diagram-wrap{text-align:center;margin-top:20px}
.diagram-wrap svg{max-width:100%;height:auto;border-radius:12px}

/* ===== Persona Guide ===== */
.persona{background:#f8f9fc}
.persona-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.persona-card{border-radius:14px;padding:36px 32px;transition:transform .25s,box-shadow .25s}
.persona-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.1)}
.persona-b2b{background:linear-gradient(135deg,#1a1a2e,#16213e);color:#fff}
.persona-ec{background:linear-gradient(135deg,#e94560,#c23152);color:#fff}
.persona-card h3{font-size:1.3rem;margin-bottom:8px}
.persona-card p{font-size:.9rem;opacity:.85;margin-bottom:18px;line-height:1.7}
.persona-tag{display:inline-block;padding:3px 12px;border-radius:20px;font-size:.78rem;font-weight:600;margin-right:6px;margin-bottom:6px;background:rgba(255,255,255,.2);color:#fff}
.persona-link{display:inline-block;margin-top:14px;color:#fff;font-weight:700;text-decoration:none;border-bottom:2px solid rgba(255,255,255,.5);padding-bottom:2px;transition:border-color .2s}
.persona-link:hover{border-color:#fff}

/* ===== Platform Table ===== */
.platforms{background:#fff}
.platform-table{width:100%;border-collapse:collapse;border-radius:10px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.platform-table thead{background:#1a1a2e;color:#fff}
.platform-table th{padding:16px 14px;font-size:.88rem;text-align:left;font-weight:600}
.platform-table td{padding:14px;font-size:.87rem;border-bottom:1px solid #eee;vertical-align:top}
.platform-table tr:hover td{background:#f0f4ff}
.platform-table .rate{font-weight:700;color:#e94560}
.platform-table .star{color:#f0ad4e;letter-spacing:1px}
.platform-table .tag{display:inline-block;padding:3px 10px;border-radius:20px;font-size:.76rem;font-weight:600;margin:1px}
.tag-best{background:#d4edda;color:#155724}
.tag-fast{background:#d1ecf1;color:#0c5460}
.tag-global{background:#fff3cd;color:#856404}
.tag-tech{background:#e2e3f5;color:#383d41}
.tag-b2b{background:#f8d7da;color:#721c24}

/* ===== Fee Compare Bar Chart (SVG) ===== */
.fee-visual{background:#fff}
.fee-bar-wrap{display:flex;flex-direction:column;gap:14px;max-width:750px;margin:20px auto}
.fee-row{display:flex;align-items:center;gap:12px}
.fee-label{width:140px;font-size:.88rem;font-weight:600;text-align:right;color:#333;flex-shrink:0}
.fee-bar-bg{flex:1;height:30px;background:#eee;border-radius:6px;overflow:hidden;position:relative}
.fee-bar{height:100%;border-radius:6px;display:flex;align-items:center;padding-left:10px;font-size:.78rem;color:#fff;font-weight:600;transition:width .6s}
.fee-bar-high{background:#e94560;width:92%}
.fee-bar-mid{background:#0f3460;width:45%}
.fee-bar-low{background:#155724;width:12%}
.fee-bar-pp{background:#856404;width:73%}

/* ===== Steps ===== */
.steps{background:#f8f9fc}
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-item{text-align:center}
.step-num{width:48px;height:48px;border-radius:50%;background:#e94560;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.2rem;margin:0 auto 14px}
.step-item h3{font-size:1rem;margin-bottom:8px}
.step-item p{font-size:.86rem;color:#666}

/* ===== Latest Articles ===== */
.articles{background:#fff}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.article-card{border-radius:12px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.05);transition:transform .25s,box-shadow .25s;background:#fff;border:1px solid #eee}
.article-card:hover{transform:translateY(-4px);box-shadow:0 10px 40px rgba(0,0,0,.08)}
.article-img{
    width:100%;
    height:220px;
    overflow:hidden;
    background:#f5f8ff;
}
.article-img a{display:block;width:100%;height:100%;}
.article-img img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:0.4s;
    display:block;
}
.list-item:hover .article-img img{
    transform: scale(1.06);
}
.article-body{padding:20px 22px 24px}
.article-cat{display:inline-block;font-size:.76rem;color:#e94560;font-weight:600;margin-bottom:6px}
.article-body h3{font-size:1.05rem;margin-bottom:8px;line-height:1.4}
.article-body h3 a{color:#1a1a2e;text-decoration:none;transition:color .2s}
.article-body h3 a:hover{color:#e94560}
.article-body p{font-size:.86rem;color:#666;margin-bottom:12px;line-height:1.6}
.article-meta{font-size:.78rem;color:#999}

/* ===== FAQ ===== */
.faq{background:#fff}
.faq-item{border:1px solid #e8e8ee;border-radius:10px;margin-bottom:12px;overflow:hidden}
.faq-q{background:#f8f9fc;padding:16px 22px;font-weight:700;font-size:.95rem;cursor:pointer;display:flex;justify-content:space-between;align-items:center;user-select:none}
.faq-q::after{content:"+";font-size:1.2rem;color:#e94560;font-weight:700;transition:transform .3s}
.faq-item.active .faq-q::after{content:"鈭�"}
.faq-item.active .faq-a { max-height: 1000px; padding: 18px 22px; }
.faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:max-height .35s,padding .35s}
.faq-a p{padding:18px 0;font-size:.9rem;color:#555;line-height:1.8}

/* ===== CTA ===== */
.cta-section{background:linear-gradient(135deg,#0f3460,#1a1a2e);color:#fff;text-align:center;padding:60px 0}
.cta-section h2{font-size:2rem;margin-bottom:12px}
.cta-section p{color:rgba(255,255,255,.7);margin-bottom:28px;font-size:1rem}

/* ===== Footer ===== */
.footer{background:#1a1a2e;color:rgba(255,255,255,.5);text-align:center;padding:24px 0;font-size:.85rem;border-top:1px solid rgba(255,255,255,.06)}
.footer a{color:rgba(255,255,255,.4);text-decoration:none}

/* ==========================================
   Article Page Styles
   ========================================== */

/* Article Header */
.article-header{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%);color:#fff;padding:50px 0 40px;text-align:center}
.article-header .breadcrumb{font-size:.85rem;color:rgba(255,255,255,.5);margin-bottom:14px}
.article-header .breadcrumb a{color:rgba(255,255,255,.6);text-decoration:none}
.article-header .breadcrumb a:hover{color:#e94560}
.article-header h1{font-size:2rem;font-weight:800;max-width:1200px;margin:0 auto 12px;line-height:1.35}
.article-header .meta{font-size:.88rem;color:rgba(255,255,255,.5)}

/* Article Body */
.article-body-wrap{max-width:1200px;margin:0 auto;padding:40px 20px 60px}
.article-content{background:#fff;border-radius:12px;padding:40px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.article-content h2{font-size:1.5rem;margin:32px 0 14px;padding-bottom:8px;border-bottom:2px solid #f0f0f0}
.article-content h2:first-child{margin-top:0}
.article-content h3{font-size:1.15rem;margin:22px 0 10px;color:#0f3460}
.article-content p{font-size:.95rem;color:#444;margin-bottom:14px;line-height:1.85}
.article-content ul,.article-content ol{margin:0 0 16px 20px}
.article-content li{font-size:.93rem;color:#444;margin-bottom:6px;line-height:1.7}
.article-content strong{color:#1a1a2e}
.article-content .highlight-box{background:#f0f4ff;border-left:4px solid #0f3460;padding:18px 22px;border-radius:0 8px 8px 0;margin:18px 0;font-size:.92rem;color:#333}
.article-content .highlight-box strong{color:#e94560}
.article-content table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.88rem}
.article-content th{background:#1a1a2e;color:#fff;padding:10px 12px;text-align:left;font-weight:600}
.article-content td{padding:10px 12px;border-bottom:1px solid #eee}
.article-content tr:nth-child(even) td{background:#f8f9fc}
.article-content .toc{background:#f8f9fc;border-radius:10px;padding:18px 24px;margin:0 0 24px}
.article-content .toc strong{display:block;margin-bottom:8px;font-size:.95rem}
.article-content .toc ol{margin:0 0 0 18px}
.article-content .toc li{font-size:.88rem;margin-bottom:4px}
.article-content .toc a{color:#0f3460;text-decoration:none}
.article-content .toc a:hover{text-decoration:underline}

/* Article Footer Nav */
.article-nav{display:flex;justify-content:space-between;margin-top:36px;padding-top:24px;border-top:1px solid #eee}
.article-nav a{color:#0f3460;text-decoration:none;font-size:.9rem;font-weight:600;transition:color .2s}
.article-nav a:hover{color:#e94560}

/* ==========================================
   Responsive
   ========================================== */
@media(max-width:900px){
  .hero{padding:60px 0}
  .hero h1{font-size:2rem}
  .nav{display:none}
  .hamburger{display:flex}
  .mobile-nav{display:block}
  .problem-grid{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:1fr;max-width:480px;margin:0 auto}
  .article-grid{grid-template-columns:1fr;max-width:500px;margin:0 auto}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .persona-grid{grid-template-columns:1fr}
  .article-content{padding:24px}
}
@media(max-width:640px){
  .hero h1{font-size:1.5rem}
  .hero p{font-size:.95rem}
  .hero-cta a{padding:12px 24px;font-size:.88rem}
  .section-title h2{font-size:1.4rem}
  .problem-grid{grid-template-columns:1fr}
  .platform-table{font-size:.8rem}
  .platform-table th,.platform-table td{padding:8px 6px}
  .step-grid{grid-template-columns:1fr;gap:16px}
  .persona-card{padding:24px 20px}
  section{padding:40px 0}
  .article-header h1{font-size:1.4rem}
  .article-content{padding:16px}
  .article-nav{flex-direction:column;gap:12px}
  .fee-label{width:80px;font-size:.78rem}
  .article-grid{grid-template-columns:1fr}
}