/* ========================================
   统一母版 V2 — 6 大官网共用版面
   深色：bg=#0A0E1A / panel=#0E1426 / 主文=#E8ECF4 / 大字=#A68B3C
   浅色：bg=#FFFFFF / panel=#F6F4EF / 主文=#111111 / 大字=#A68B3C
   ======================================== */

*{box-sizing:border-box;margin:0;padding:0}
html,body{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
:root{
  --bg:#0A0E1A;
  --bg-card:#0E1426;
  --bg-card2:#0B1020;
  --txt:#E8ECF4;        /* 小字体：深色下白色 */
  --txt-dim:#8A90A0;
  --txt-bright:#A68B3C; /* 大字体：深色下金色 */
  --gold:#A68B3C;
  --gold-bright:#C9A961;
  --gold-dark:#8a7330;
  --border:#1E2A3D;
  --shadow:0 8px 32px rgba(0,0,0,.6);
  --wrap:1180px;
}
body.theme-light{
  --bg:#FFFFFF;
  --bg-card:#F6F4EF;
  --bg-card2:#EFEBE2;
  --txt:#111111;        /* 小字体：浅色下黑色（与深色相反） */
  --txt-dim:#555555;
  --txt-bright:#A68B3C; /* 大字体：浅色下金色（与深色一致） */
  --border:#D9D2C2;
  --shadow:0 4px 24px rgba(0,0,0,.08);
}
body{background:var(--bg);color:var(--txt);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;transition:background .25s ease,color .25s ease}
img{max-width:100%;display:block}
a{color:var(--gold);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--gold-bright)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
h1,h2,h3,h4,h5{color:var(--txt-bright);font-weight:700;letter-spacing:.5px}
h1{font-size:42px;line-height:1.25}
h2{font-size:30px;line-height:1.3}
h3{font-size:20px;line-height:1.4}
p{color:var(--txt)}

/* ============== NAV ============== */
.nav{display:flex;align-items:center;justify-content:space-between;max-width:var(--wrap);margin:0 auto;padding:14px 24px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--bg);z-index:50}
body.theme-light .nav{background:#FFFFFF}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--txt-bright);font-size:24px;font-weight:700;letter-spacing:.3px}
.brand .logo{width:52px;height:52px;border-radius:50%;object-fit:cover}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.nav-links a{padding:8px 14px;border-radius:8px;color:var(--txt);font-size:14px;font-weight:500;transition:all .2s ease}
.nav-links a:hover{background:var(--bg-card);color:var(--gold)}
.nav-links a.active{background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:#fff}
.nav-right{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.btn-gold{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--gold-bright),var(--gold));color:#0a0a0f;font-weight:700;padding:9px 18px;border-radius:10px;font-size:14px;border:0;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}
.btn-gold:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(166,139,60,.4)}
.icon-btn{width:38px;height:38px;border:1px solid var(--gold);background:transparent;color:var(--gold);border-radius:50%;font-size:15px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;cursor:pointer;transition:all .2s ease}
.icon-btn:hover{background:var(--gold);color:#fff}
.hamburger{display:none;cursor:pointer;flex-direction:column;gap:5px;padding:10px 8px;min-width:44px;min-height:44px;align-items:center;justify-content:center;border-radius:8px;flex-shrink:0}
.hamburger span{width:26px;height:3px;background:var(--gold);border-radius:2px;display:block}
@media(max-width:900px){
  .nav{padding:10px 14px}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--bg);padding:12px;border-bottom:1px solid var(--border);gap:4px}
  .nav-links.open{display:flex}
  .hamburger{display:flex}
  /* 移动端：隐藏免费诊断 CTA，保留中英/颜色/汉堡 3 个按钮 */
  .nav-right .btn-gold{display:none}
  .nav-right{gap:6px}
  .nav-right .icon-btn{width:34px;height:34px;font-size:13px}
  .brand{font-size:18px}
  .brand .logo{width:38px;height:38px}
}

/* ============== HERO ============== */
.hero{padding:64px 24px 56px;background:radial-gradient(ellipse at top,rgba(166,139,60,.12),transparent 60%),var(--bg)}
body.theme-light .hero{background:radial-gradient(ellipse at top,rgba(166,139,60,.08),transparent 60%),#FFFFFF}
.hero .wrap{text-align:center;max-width:980px;margin:0 auto}
.hero-badge{display:inline-block;padding:7px 22px;border:1px solid var(--gold);border-radius:999px;color:var(--gold);font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:22px;background:rgba(166,139,60,.08)}
.hero h1{font-size:54px;margin-bottom:18px;font-weight:800;letter-spacing:1px}
.hero h1 .hl{color:var(--txt-bright);background:linear-gradient(135deg,var(--gold-bright),var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero .sub{font-size:18px;color:var(--txt);margin-bottom:36px;line-height:1.7}
.hero .sub b{color:var(--txt-bright)}
.hero-compare{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin:40px 0 36px;text-align:left}
.panel{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:26px 28px;position:relative;transition:transform .25s ease,box-shadow .25s ease}
body.theme-light .panel{background:var(--bg-card);box-shadow:0 2px 12px rgba(0,0,0,.06)}
.panel:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.panel.old{opacity:.9}
.panel.new{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold),0 12px 32px rgba(166,139,60,.25)}
.panel .ph{margin-bottom:14px}
.panel .ph span{font-size:12px;font-weight:600;letter-spacing:1px;padding:5px 12px;border-radius:6px;background:rgba(138,144,160,.15);color:var(--txt-dim)}
.panel.new .ph span{background:rgba(166,139,60,.18);color:var(--gold)}
.panel h3{font-size:22px;color:var(--txt-bright);margin-bottom:16px;letter-spacing:.5px}
.panel ul{list-style:none}
.panel li{padding:8px 0;color:var(--txt);font-size:14px;display:flex;align-items:flex-start;gap:10px}
.panel li::before{content:"✗";color:#9a3344;font-weight:700;flex-shrink:0}
.panel.new li::before{content:"✓";color:var(--gold-bright);font-weight:700}
.panel.old li b{color:var(--txt-dim);text-decoration:line-through}
.panel.new li b{color:var(--txt-bright)}
.hero-cta{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:24px}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--gold-bright),var(--gold));color:#0a0a0f;font-weight:700;padding:14px 32px;border-radius:12px;font-size:16px;border:0;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;letter-spacing:1px}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(166,139,60,.5);color:#0a0a0f}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;background:transparent;color:var(--gold);font-weight:700;padding:14px 32px;border-radius:12px;font-size:16px;border:2px solid var(--gold);cursor:pointer;transition:all .2s ease;letter-spacing:1px}
.btn-ghost:hover{background:var(--gold);color:#fff}
.hero-trust{display:flex;justify-content:center;gap:32px;flex-wrap:wrap;font-size:14px;color:var(--txt-dim);padding-top:18px;border-top:1px dashed var(--border)}
.hero-trust b{color:var(--gold-bright);font-size:24px;font-weight:800;margin-right:6px;font-family:-apple-system,BlinkMacSystemFont,sans-serif}
@media(max-width:760px){
  .wrap{padding:0 16px}
  .hero{padding:40px 16px 36px}
  .hero h1{font-size:30px;line-height:1.3}
  .hero h1 .hl{font-size:30px}
  .hero .sub{font-size:15px;margin-bottom:24px}
  .hero-badge{font-size:12px;padding:6px 16px;margin-bottom:16px}
  .hero-compare{grid-template-columns:1fr;gap:12px;margin:24px 0 24px}
  .panel{padding:18px 18px}
  .panel h3{font-size:17px;margin-bottom:12px}
  .panel li{font-size:13px;padding:6px 0}
  .hero-cta{flex-direction:column;gap:10px;margin-bottom:18px}
  .hero-cta a{width:100%;padding:13px 20px;font-size:15px}
  .hero-trust{gap:14px;font-size:13px;padding-top:14px}
  .hero-trust b{font-size:20px;margin-right:4px}
  .sec{padding:48px 16px}
  .sec-head h2{font-size:24px;margin-bottom:10px}
  .sec-head p{font-size:14px}
  .sec-head{margin-bottom:32px}
  .case-cover{height:110px;font-size:48px}
  .case-body{padding:18px}
  .case-card h3{font-size:16px}
  .case-card p{font-size:13px}
  .staff-card{padding:18px}
  .staff-card h3{font-size:16px}
  .staff-card .ico{font-size:30px}
  .flow-step{padding:20px 14px}
  .flow-step .node{width:64px;height:64px;font-size:28px}
  .plan-card{padding:22px 20px}
  .plan-card .price{font-size:38px}
  .plan-card h3{font-size:18px}
  .final-cta{padding:36px 20px}
  .final-cta h2{font-size:22px}
  .final-cta .btn-big{padding:14px 32px;font-size:15px}
  .pddun-ft{padding:36px 16px 20px}
  .pddun-ft-logo{font-size:22px}
  #news{padding:0 16px;margin:32px auto}
  #news h2{font-size:22px}
  #news article{padding:16px 18px}
  #news h3{font-size:16px}
  .pddun-ft-bottom{font-size:11px;line-height:1.8}
  .pddun-ft-qrbox{width:90px;height:90px}
}

/* ============== SECTIONS ============== */
.sec{padding:72px 24px}
.sec-head{text-align:center;margin-bottom:48px;max-width:760px;margin-left:auto;margin-right:auto}
.sec-head .tag{display:inline-block;padding:6px 18px;border:1px solid var(--gold);border-radius:999px;color:var(--gold);font-size:12px;font-weight:600;letter-spacing:1px;margin-bottom:14px;background:rgba(166,139,60,.08)}
.sec-head h2{font-size:34px;margin-bottom:14px;letter-spacing:1px}
.sec-head p{color:var(--txt-dim);font-size:16px}

/* ============== DATA DASHBOARD ============== */
.data-dashboard{padding:64px 24px;background:var(--bg-card2)}
body.theme-light .data-dashboard{background:var(--bg-card2)}
.metric-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:24px}
.metric-card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:22px 18px;text-align:center;transition:transform .2s ease,box-shadow .2s ease}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--gold)}
.metric-card .m-icon{font-size:32px;margin-bottom:10px}
.metric-card .m-value{font-size:24px;color:var(--gold-bright);font-weight:800;margin-bottom:6px;font-family:-apple-system,BlinkMacSystemFont,sans-serif}
.metric-card .m-label{color:var(--txt-bright);font-size:14px;font-weight:600;margin-bottom:6px}
.metric-card .m-desc{color:var(--txt-dim);font-size:12px;line-height:1.5}
@media(max-width:1000px){.metric-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:600px){.metric-grid{grid-template-columns:repeat(2,1fr)}}

/* ============== STAFF ============== */
.staff-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}
.staff-card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:24px;transition:transform .2s ease,box-shadow .2s ease;position:relative;overflow:hidden}
.staff-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--gold-bright),var(--gold));transform:scaleX(0);transition:transform .25s ease;transform-origin:left}
.staff-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--gold)}
.staff-card:hover::before{transform:scaleX(1)}
.staff-card .ico{font-size:36px;margin-bottom:10px}
.staff-card h3{color:var(--txt-bright);margin-bottom:10px;font-size:18px}
.staff-card p{color:var(--txt);font-size:13px;line-height:1.7;margin-bottom:12px}
.tag-emp{display:inline-block;padding:4px 12px;background:rgba(166,139,60,.15);color:var(--gold);border-radius:6px;font-size:12px;font-weight:600}
@media(max-width:1000px){.staff-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.staff-grid{grid-template-columns:1fr}}

/* ============== CASES ============== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}
.case-card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:transform .2s ease,box-shadow .2s ease}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--gold)}
.case-cover{height:140px;background:linear-gradient(135deg,#1a2438,#0f1827);display:flex;align-items:center;justify-content:center;font-size:64px;border-bottom:1px solid var(--border)}
body.theme-light .case-cover{background:linear-gradient(135deg,#F6EFD9,#E8DCB8);border-bottom:1px solid var(--gold)}
.case-body{padding:22px}
.categ{display:inline-block;padding:4px 12px;background:rgba(166,139,60,.15);color:var(--gold);border-radius:6px;font-size:12px;font-weight:600;margin-bottom:10px}
.case-card h3{color:var(--txt-bright);font-size:18px;margin-bottom:10px}
.case-card p{color:var(--txt);font-size:13px;line-height:1.7;margin-bottom:14px}
.case-metrics{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding-top:14px;border-top:1px dashed var(--border)}
.case-metrics .m{text-align:center}
.case-metrics .v{font-size:22px;color:var(--gold-bright);font-weight:800;font-family:-apple-system,BlinkMacSystemFont,sans-serif}
.case-metrics .k{color:var(--txt-dim);font-size:11px;margin-top:2px}
@media(max-width:1000px){.case-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.case-grid{grid-template-columns:1fr}}

/* ============== FLOW ============== */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:24px;position:relative}
.flow::before{content:"";position:absolute;top:42px;left:12%;right:12%;height:2px;background:linear-gradient(90deg,var(--gold-bright),var(--gold));z-index:0;opacity:.4}
.flow-step{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:24px 18px;text-align:center;position:relative;z-index:1;transition:transform .2s ease,box-shadow .2s ease}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--gold)}
.flow-step .node{width:80px;height:80px;margin:0 auto 14px;background:linear-gradient(135deg,var(--gold-bright),var(--gold));border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:36px;box-shadow:0 6px 20px rgba(166,139,60,.4)}
.flow-step h3{color:var(--txt-bright);margin-bottom:8px;font-size:18px}
.flow-step p{color:var(--txt);font-size:13px;line-height:1.6}
@media(max-width:1000px){.flow{grid-template-columns:repeat(2,1fr);gap:14px}.flow::before{display:none}}
@media(max-width:600px){.flow{grid-template-columns:1fr}}

/* ============== PRICING ============== */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}
.plan-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:28px 26px;transition:transform .2s ease,box-shadow .2s ease;position:relative}
.plan-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.plan-card.hot{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold),0 12px 36px rgba(166,139,60,.25);transform:scale(1.03)}
.plan-card.hot:hover{transform:scale(1.03) translateY(-3px)}
.plan-card .flag{position:absolute;top:-12px;right:18px;background:linear-gradient(135deg,var(--gold-bright),var(--gold));color:#0a0a0f;padding:4px 12px;border-radius:8px;font-size:12px;font-weight:700;letter-spacing:1px}
.plan-card h3{color:var(--txt-bright);font-size:22px;margin-bottom:8px}
.plan-card .who{color:var(--txt-dim);font-size:13px;margin-bottom:14px}
.plan-card .price{font-size:48px;color:var(--gold-bright);font-weight:800;margin:12px 0;font-family:-apple-system,BlinkMacSystemFont,sans-serif}
.plan-card .price small{font-size:18px;color:var(--txt);font-weight:600}
.plan-card .desc{color:var(--txt);font-size:13px;line-height:1.7;margin-bottom:16px}
.plan-card ul{list-style:none;margin-bottom:18px}
.plan-card li{padding:6px 0;color:var(--txt);font-size:13px}
.plan-card li::before{content:"✓ ";color:var(--gold-bright);font-weight:700}
.plan-card .range{color:var(--gold);font-size:13px;font-weight:600;margin-bottom:18px;padding-top:12px;border-top:1px dashed var(--border)}
.plan-card .btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 20px;border-radius:10px;font-size:14px;font-weight:600;text-decoration:none;transition:all .2s ease;cursor:pointer}
.plan-card .btn.solid{background:linear-gradient(135deg,var(--gold-bright),var(--gold));color:#0a0a0f}
.plan-card .btn.solid:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(166,139,60,.4);color:#0a0a0f}
.plan-card .btn.ghost{background:transparent;color:var(--gold);border:1.5px solid var(--gold)}
.plan-card .btn.ghost:hover{background:var(--gold);color:#fff}
@media(max-width:1000px){.plan-grid{grid-template-columns:1fr;gap:18px}.plan-card.hot{transform:none}.plan-card.hot:hover{transform:translateY(-3px)}}

/* ============== FINAL CTA ============== */
.final-cta{text-align:center;padding:56px 32px;background:linear-gradient(135deg,rgba(166,139,60,.18),rgba(166,139,60,.05));border:1px solid var(--gold);border-radius:20px;max-width:920px;margin:0 auto}
body.theme-light .final-cta{background:linear-gradient(135deg,rgba(166,139,60,.12),rgba(166,139,60,.04))}
.final-cta h2{font-size:30px;margin-bottom:14px;color:var(--txt-bright)}
.final-cta p{color:var(--txt);font-size:16px;margin-bottom:28px}
.btn-big{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--gold-bright),var(--gold));color:#0a0a0f;font-weight:700;padding:16px 48px;border-radius:12px;font-size:17px;border:0;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;letter-spacing:1.5px}
.btn-big:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(166,139,60,.5);color:#0a0a0f}

/* ============== FOOTER ============== */
.pddun-ft{background:var(--bg-card2);color:var(--txt);padding:48px 24px 24px;margin-top:48px;border-top:1px solid var(--border)}
body.theme-light .pddun-ft{background:var(--bg-card2)}
.pddun-ft-inner{max-width:var(--wrap);margin:0 auto}
.pddun-ft-top{display:grid;grid-template-columns:1.4fr 2fr;gap:36px;padding-bottom:32px;border-bottom:1px solid var(--border)}
.pddun-ft-brand .pddun-ft-logo{font-size:26px;color:var(--gold);font-weight:800;margin-bottom:8px;letter-spacing:.5px}
.pddun-ft-company{color:var(--txt);font-size:14px;margin-bottom:6px;font-weight:600}
.pddun-ft-desc{color:var(--txt-dim);font-size:13px}
.pddun-ft-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pddun-ft-col h4{color:var(--gold);font-size:14px;margin-bottom:12px;font-weight:700;letter-spacing:1px}
.pddun-ft-col p,.pddun-ft-col a{color:var(--txt);font-size:13px;margin-bottom:8px;display:block;text-decoration:none}
.pddun-ft-col a:hover{color:var(--gold-bright)}
.pddun-ft-qrbox{width:110px;height:110px;background:#fff;border-radius:10px;padding:6px;margin-bottom:8px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border)}
.pddun-ft-bottom{padding-top:20px;color:var(--txt-dim);font-size:12px;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px}
.pddun-ft-sep{color:var(--border)}
@media(max-width:760px){.pddun-ft-top{grid-template-columns:1fr;gap:24px}.pddun-ft-cols{grid-template-columns:1fr 1fr}}

/* ============== MISC ============== */
.seo-site-network{display:none}
::selection{background:var(--gold);color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--bg-card)}
::-webkit-scrollbar-thumb{background:var(--gold);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--gold-bright)}