:root{
  --green:#7ac143; --green-d:#5da32a; --teal:#22b07d; --blue:#4f7cff;
  --ink:#1e2b26; --muted:#6b7f76; --line:#dcebe3; --card:#ffffff;
  --bg:#f4faf6; --dark:#12201b; --radius:20px;
  --shadow:0 12px 40px rgba(46,110,80,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);overflow-x:hidden}
a{color:#2f8f5f;text-decoration:none}
.hidden{display:none!important}
.green{color:var(--green-d)}
.muted{color:var(--muted);font-size:13px}

/* 背景装饰 */
.bg-decor{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;animation:blob 14s ease-in-out infinite alternate}
.b1{width:520px;height:520px;background:radial-gradient(circle,#b8f0c8,#7ee2a8);top:-160px;left:-120px}
.b2{width:460px;height:460px;background:radial-gradient(circle,#c9d8ff,#8fb4ff);top:10%;right:-140px;animation-delay:-4s}
.b3{width:420px;height:420px;background:radial-gradient(circle,#fff3b0,#ffd66e);bottom:-140px;left:30%;opacity:.4;animation-delay:-8s}
.grid{position:absolute;inset:0;background-image:linear-gradient(rgba(60,120,90,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(60,120,90,.06) 1px,transparent 1px);background-size:36px 36px;mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 60%,transparent 100%)}
@keyframes blob{from{transform:translate(0,0) scale(1)}to{transform:translate(60px,40px) scale(1.12)}}

/* 顶栏 */
#top{position:relative}
.topbar{position:sticky;top:12px;z-index:30;padding:0 16px}
.topbar-inner{max-width:1120px;margin:0 auto;display:flex;align-items:center;gap:18px;padding:10px 16px;border-radius:18px}
.glass{background:rgba(255,255,255,.72);backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);border:1px solid rgba(255,255,255,.7);box-shadow:0 8px 32px rgba(40,90,70,.12)}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:18px}
.brand-logo{width:40px;height:40px;display:grid;place-items:center;font-size:24px;background:linear-gradient(135deg,#d8f5b5,#8ee06a 60%,#2fa36b);border-radius:14px;box-shadow:0 6px 16px rgba(110,190,80,.4);animation:floatY 4s ease-in-out infinite}
.brand-text em{font-style:normal;font-size:11px;background:linear-gradient(90deg,var(--teal),var(--blue));color:#fff;border-radius:99px;padding:2px 8px;margin-left:8px;vertical-align:middle}
.brand-text b{color:var(--green-d)}
.top-links{display:flex;gap:20px;margin:0 auto;font-size:14px;font-weight:600}
.top-links a{color:#42564d;position:relative;padding:6px 2px}
.top-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:linear-gradient(90deg,var(--green),var(--teal));border-radius:99px;transition:width .3s}
.top-links a:hover::after{width:100%}
.top-right{display:flex;align-items:center;gap:12px}
.safe-pill{font-size:12px;background:#e6f7e8;color:#2c7a3f;border:1px solid #c4e9c8;padding:6px 12px;border-radius:99px;display:flex;align-items:center;gap:6px;white-space:nowrap}
.safe-pill .dot{width:8px;height:8px;border-radius:50%;background:#2ecc71;box-shadow:0 0 0 0 rgba(46,204,113,.6);animation:pulse 1.8s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(46,204,113,0)}100%{box-shadow:0 0 0 0 rgba(46,204,113,0)}}
.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 12px;cursor:pointer}
.mobile-menu{max-width:1120px;margin:8px auto 0;border-radius:14px;padding:10px;display:flex;flex-direction:column}
.mobile-menu a{padding:10px;font-weight:600;color:var(--ink)}

/* 按钮 */
.btn{border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 18px;cursor:pointer;font-size:14px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s;display:inline-block}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(50,120,85,.18)}
.btn:active{transform:translateY(0)}
.btn.primary{background:linear-gradient(135deg,#8ee06a,#3fb26f 60%,#2a9d8f);border:none;color:#fff}
.btn.primary:hover{filter:brightness(1.05)}
.btn.ghost{background:rgba(255,255,255,.8)}
.btn.big{padding:14px 26px;font-size:15px;border-radius:16px}
.btn.small{padding:8px 14px;font-size:13px;border-radius:10px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn.glow{box-shadow:0 8px 28px rgba(80,190,110,.45)}
.link-btn{background:none;border:none;color:#1f8a52;cursor:pointer;font-size:14px;font-weight:700;text-decoration:underline;text-underline-offset:3px}

/* Hero */
.hero{max-width:1120px;margin:26px auto 0;padding:10px 20px 6px;display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;background:#fff;border:1px solid var(--line);border-radius:99px;padding:7px 14px;box-shadow:var(--shadow)}
.hero-badge .pulse{width:9px;height:9px;border-radius:50%;background:linear-gradient(135deg,#ff9a3c,#ff5e62);animation:pulse 1.6s infinite}
.hero h1{font-size:clamp(32px,5vw,54px);line-height:1.08;margin:16px 0 12px;letter-spacing:-.5px}
.grad-text{background:linear-gradient(90deg,#3fb26f,#4f7cff,#b86bff,#3fb26f);background-size:300% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:gradMove 6s linear infinite}
@keyframes gradMove{to{background-position:300% 0}}
.hero-sub{color:#4c6259;font-size:15px;line-height:1.8;margin:0 0 18px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:flex;gap:26px;margin-top:22px}
.hstat b{font-size:20px;display:block}
.hstat span{font-size:12px;color:var(--muted)}

/* 右侧浮动卡 */
.hero-visual{position:relative;min-height:380px}
.float-card{position:absolute;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.8);border-radius:18px;box-shadow:var(--shadow)}
.main-card{inset:10px 20px 20px 20px;padding:16px;animation:floatY 6s ease-in-out infinite}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.float-y{animation:floatY 4.5s ease-in-out infinite}
.fc-head{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);font-family:monospace}
.traffic{display:flex;gap:5px}.traffic i{width:10px;height:10px;border-radius:50%;background:#ff5f57}.traffic i:nth-child(2){background:#febc2e}.traffic i:nth-child(3){background:#28c840}
.live{margin-left:auto;color:#e74c3c;font-weight:800;animation:blink 1.4s infinite}
@keyframes blink{50%{opacity:.35}}
.fc-imgs{display:flex;align-items:center;justify-content:center;gap:12px;margin:14px 0}
.fc-img{font-size:12px;color:var(--muted);text-align:center;min-width:0}
.fc-thumb{width:150px;max-width:32vw;aspect-ratio:3/2;border-radius:12px;overflow:hidden;border:1px solid #cfdeda;box-shadow:var(--shadow);background:#eef4f0}
.fc-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.fc-arrow{font-size:22px;color:var(--green-d);animation:nudge 1.6s ease-in-out infinite}
@keyframes nudge{50%{transform:translateX(6px)}}
.ring-wrap{position:relative;width:132px;margin:6px auto}
.ring{width:132px;height:132px;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:11;stroke-linecap:round}
.ring .bg{stroke:#e7f0ea}
.ring .fg{stroke:url(#g);stroke:#3fb26f;stroke-dasharray:327;stroke-dashoffset:127;animation:ringPulse 2.6s ease-in-out infinite}
@keyframes ringPulse{50%{stroke-dashoffset:112}}
.ring-text{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.ring-text b{font-size:24px;color:var(--green-d)}
.ring-text span{font-size:11px;color:var(--muted)}
.mini-bars{display:flex;flex-direction:column;gap:8px;margin-top:10px}
.mini-bars i{height:10px;border-radius:99px;background:linear-gradient(90deg,var(--green),var(--teal));width:var(--w);animation:barGrow 1.8s ease-out both}
.mini-bars i:last-child{background:linear-gradient(90deg,#4f7cff,#9b7bff)}
@keyframes barGrow{from{width:0}}
.chip{padding:9px 14px;font-size:12px;font-weight:700;border-radius:99px}
.c1{top:0;left:0;animation:floatY 5s ease-in-out infinite}
.c2{top:44%;right:-6px;animation:floatY 4s .6s ease-in-out infinite}
.c3{bottom:0;left:8px;animation:floatY 5.5s 1s ease-in-out infinite}

/* 上传区 */
.upload-wrap{max-width:1120px;margin:8px auto 0;padding:0 20px 26px}
.drop-zone{background:rgba(255,255,255,.85);backdrop-filter:blur(10px);border:2px dashed #9dc7ae;border-radius:24px;text-align:center;padding:54px 20px 30px;cursor:pointer;position:relative;overflow:hidden;transition:.3s;box-shadow:var(--shadow)}
.drop-zone::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 200px at 50% -40px,rgba(140,220,140,.25),transparent);pointer-events:none}
.drop-zone:hover{border-color:var(--green);transform:translateY(-2px);box-shadow:0 18px 50px rgba(70,170,110,.2)}
.drop-zone.dragover{border-color:var(--teal);background:#eefbef;transform:scale(1.01);animation:shake .4s}
@keyframes shake{25%{transform:scale(1.015) rotate(-.4deg)}75%{transform:scale(1.015) rotate(.4deg)}}
.dz-glow{position:absolute;inset:-40%;background:conic-gradient(from 0deg,transparent,rgba(120,220,150,.18),transparent 30%);animation:spin 6s linear infinite;pointer-events:none}
@keyframes spin{to{transform:rotate(360deg)}}
.drop-icon{font-size:52px;filter:drop-shadow(0 8px 16px rgba(60,150,90,.3))}
.drop-title{font-size:22px;margin:12px 0 6px}
.drop-sub{color:var(--muted);font-size:14px}
.dz-pills{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.dz-pills span{font-size:12px;background:#eef7ef;border:1px solid var(--line);padding:6px 12px;border-radius:99px}
.panda{font-size:62px;position:absolute;right:20px;bottom:4px;filter:drop-shadow(0 8px 14px rgba(0,0,0,.18))}

/* 文件列表 */
.file-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.file-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:10px 12px;display:grid;grid-template-columns:58px 1fr auto;gap:12px;align-items:center;box-shadow:0 4px 18px rgba(60,90,75,.08);animation:cardIn .45s cubic-bezier(.2,.9,.3,1.2) both}
@keyframes cardIn{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}
.file-card img.thumb{width:58px;height:58px;object-fit:cover;border-radius:12px;background:#eef4f0;border:1px solid #e2ece7}
.file-name{font-size:14px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-sub{font-size:12px;color:var(--muted);margin-top:4px}
.progress{height:8px;background:#e7efe9;border-radius:99px;margin-top:8px;overflow:hidden;position:relative}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--green),#2fbf71,#4f7cff);background-size:200% 100%;animation:gradMove 1.2s linear infinite;transition:width .3s;border-radius:99px}
.badge{display:inline-block;font-size:11px;font-weight:800;background:linear-gradient(135deg,#dcf5c2,#a8e57a);color:#2f6b12;border-radius:99px;padding:3px 10px;margin-left:6px;animation:pop .4s both}
@keyframes pop{from{transform:scale(.6)}to{transform:scale(1)}}
.badge.gray{background:#eef2f0;color:#6b7d74}
.file-actions{display:flex;gap:8px;align-items:center}
.overview{margin-top:12px;border-radius:16px;padding:12px 16px;display:flex;align-items:center;gap:12px;animation:cardIn .4s both}
.overview .saving{color:var(--green-d);font-weight:800}
.overview-actions{margin-left:auto;display:flex;gap:8px}
.privacy{text-align:center;color:var(--muted);font-size:12px}

/* 内容区 */
.highlight{max-width:1120px;margin:0 auto;padding:26px 20px}
.sec-title{font-size:clamp(22px,3vw,30px);text-align:center;margin:6px 0}
.sec-title strong{background:linear-gradient(90deg,var(--green-d),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-sub{text-align:center;color:var(--muted)}
.cols{display:grid;grid-template-columns:320px 1fr;gap:20px;margin-top:22px}
.side{display:flex;flex-direction:column;gap:14px}
/* 三卡均分：控制台 / 统计 / 小贴士，左右等重 */
.feat-row{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:18px;margin-top:22px;align-items:stretch}
.apng-strip{margin-top:16px;display:flex;gap:12px;align-items:center;background:linear-gradient(90deg,#eef6ff,#f0fdf1);border:1px solid var(--line);border-radius:16px;padding:14px 18px;box-shadow:var(--shadow)}
.apng-strip p{margin:0;font-size:14px}
.apng-ico{font-size:26px;animation:floatY 4s ease-in-out infinite}
.block{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.block:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(50,120,85,.16)}
.block h2{font-size:16px;margin:0 0 8px}
.block.api{background:linear-gradient(180deg,#f3faf3,#e6f4ec)}
.demo-box{background:#15271f;color:#c8f0a0;border-radius:12px;padding:12px;font-size:13px;margin:10px 0;font-family:monospace;position:relative;overflow:hidden}
.demo-box::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.18) 50%,transparent 70%);animation:shine 2.8s infinite}
@keyframes shine{from{transform:translateX(-100%)}to{transform:translateX(100%)}}
.opt{display:flex;align-items:center;gap:10px;font-size:13px;margin:10px 0;cursor:pointer}
.switch input{display:none}
.switch .sw{width:38px;height:22px;border-radius:99px;background:#d5e5da;position:relative;transition:.25s;flex-shrink:0}
.switch .sw::after{content:"";position:absolute;width:16px;height:16px;background:#fff;border-radius:50%;top:3px;left:3px;transition:.25s;box-shadow:0 2px 6px rgba(0,0,0,.2)}
.switch input:checked+.sw{background:linear-gradient(90deg,var(--green),var(--teal))}
.switch input:checked+.sw::after{left:19px}
.quality-row{display:flex;align-items:center;gap:10px;font-size:13px;margin-top:12px}
.quality-row input{flex:1;accent-color:var(--green-d)}
.q-val{background:#1e2b26;color:#b8f5a0;border-radius:8px;padding:2px 10px;font-size:13px}
.clickme{display:inline-block;background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;padding:10px 16px;border-radius:12px;font-weight:800;position:relative;overflow:hidden}
.tip-pills{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.tip-pills span{font-size:12px;font-weight:600;color:#3d6b4f;background:#eef7ef;border:1px solid var(--line);padding:7px 13px;border-radius:99px;cursor:default;user-select:none}
.shine::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.5) 50%,transparent 70%);animation:shine 2.4s infinite}
.stat-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;font-size:12px;text-align:center}
.stat-grid b{display:block;font-size:15px;margin-top:4px}
.stat-grid .hl b{color:var(--green-d)}
.stat-bar{height:8px;background:#e8f0eb;border-radius:99px;margin-top:10px;overflow:hidden}
.stat-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--green),var(--blue));border-radius:99px;transition:width .6s}
.mini-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow)}
.halves{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.article{margin-top:30px}
.article h2{font-size:22px;margin-top:28px}
.article>h2{text-align:center}
.article>h2::after{content:"";display:block;width:56px;height:4px;border-radius:99px;background:linear-gradient(90deg,var(--green),var(--blue));margin:10px auto 0}
.quote{border-left:4px solid transparent;border-image:linear-gradient(180deg,var(--green),var(--blue)) 1;padding-left:12px;color:#46574f;background:rgba(255,255,255,.6);border-radius:0 12px 12px 0;padding-top:8px;padding-bottom:8px}
.compare-imgs{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:center;max-width:780px;margin:0 auto}
.cmp-card{margin:0;min-width:0}
.cmp-frame{position:relative;aspect-ratio:3/2;border-radius:16px;overflow:hidden;border:1px solid #cfdeda;box-shadow:var(--shadow);background:#eef4f0}
.cmp-frame img{width:100%;height:100%;object-fit:cover;display:block}
.cmp-card figcaption{text-align:center;font-size:13px;margin-top:8px}
.checker{width:230px;height:155px;border:1px solid #cfdeda;border-radius:16px;background:conic-gradient(#eee 25%,#fff 0 50%,#eee 0 75%,#fff 0);background-size:20px 20px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
.grad{width:150px;height:95px;border-radius:12px;background:linear-gradient(135deg,#9fd68f,#3a9c6e 60%,#1d5c3f);box-shadow:0 8px 20px rgba(40,120,80,.3)}
.grad.small{filter:saturate(.92) contrast(.98)}
.zoom,.save-tag{position:absolute;font-size:12px;font-weight:800;background:#fff;border:1px solid var(--line);border-radius:99px;padding:4px 10px;box-shadow:var(--shadow)}
.zoom{top:10px;right:10px}.save-tag{bottom:10px;right:10px;background:linear-gradient(135deg,#dcf5c2,#8ee06a);border:none;animation:pop 1s .3s both}
.vs{font-weight:900;font-size:22px;background:linear-gradient(90deg,var(--green-d),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.step-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 16px;box-shadow:var(--shadow);text-align:center;transition:transform .25s,box-shadow .25s}
.step-card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(50,120,85,.16)}
.step-card i{width:38px;height:38px;display:inline-grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,var(--green),var(--teal));color:#fff;font-weight:800;font-style:normal;font-size:17px;box-shadow:0 6px 14px rgba(80,180,110,.4)}
.step-card b{display:block;margin:10px 0 6px;font-size:15px}
.step-card p{margin:0;font-size:13px;color:#4c6259;line-height:1.7}
.faq{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 16px;margin:10px 0;box-shadow:var(--shadow)}
.faq-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
.faq-grid .faq{margin:0}

/* logos 跑马灯 */
.logos{background:rgba(255,255,255,.8);backdrop-filter:blur(8px);border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center;padding:24px 0;overflow:hidden}
.logos h2{font-size:15px;color:var(--muted);margin:0 0 12px}
.marquee{overflow:hidden;white-space:nowrap}
.marquee-track{display:inline-flex;gap:44px;font-weight:900;font-size:20px;color:#9db3a9;animation:marquee 18s linear infinite}
@keyframes marquee{to{transform:translateX(-50%)}}

/* footer */
footer{background:linear-gradient(180deg,#16241f,#0c1411);color:#cfe0d7;position:relative}
footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--green),var(--teal),var(--blue),var(--green));background-size:300% 100%;animation:gradMove 8s linear infinite}
.foot-inner{max-width:1120px;margin:0 auto;padding:34px 20px 0}
.foot-main{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:28px;align-items:start}
.foot-brand .brand{color:#fff}
.foot-desc{color:#9fc3ae;font-size:13px;line-height:1.8;margin:10px 0 12px}
.foot-pills{display:flex;gap:8px;flex-wrap:wrap}
.foot-pills span{font-size:11px;font-weight:700;color:#c8ecd4;background:rgba(122,193,67,.14);border:1px solid rgba(122,193,67,.3);padding:4px 10px;border-radius:99px}
.foot-links{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.foot-col strong{display:block;font-size:13px;color:#fff;margin-bottom:10px;letter-spacing:.5px}
.foot-col a{color:#9fc3ae;display:block;margin:8px 0;font-size:13px;transition:.2s}
.foot-col a:hover{color:#fff;transform:translateX(3px);text-decoration:none}
.foot-cta{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:18px;backdrop-filter:blur(6px)}
.foot-cta b{color:#fff;font-size:15px}
.foot-cta p{color:#8aa496;font-size:12px;margin:8px 0 12px}
.bottom{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px;color:#7d9a8c;border-top:1px solid rgba(255,255,255,.1);margin-top:14px;padding:14px 0 16px}
.bottom-links a{color:#7d9a8c}
.bottom-center{justify-content:center;text-align:center}
.company-strip{border-top:1px solid rgba(255,255,255,.1);margin-top:26px;padding-top:16px;display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;font-size:12px}
.co-name{color:#fff;font-weight:700}
.co-links{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.co-links a,.co-links span{color:#9fc3ae}
.co-links a:hover{color:#fff}

/* 弹窗 */
.modal{position:fixed;inset:0;background:rgba(15,25,20,.6);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}
.modal-card{background:#fff;border-radius:20px;max-width:760px;width:100%;padding:20px;position:relative;box-shadow:0 24px 80px rgba(0,0,0,.3)}
.modal-card.pop{animation:pop .35s cubic-bezier(.2,.9,.3,1.3) both}
.modal-x{position:absolute;right:12px;top:10px;border:none;background:#eef4f0;border-radius:10px;padding:8px 12px;cursor:pointer}
.modal-x:hover{background:#dcebe2}
.preview-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.preview-grid img{width:100%;max-height:320px;object-fit:contain;background:#f1f6f3;border:1px solid var(--line);border-radius:12px}

/* 滚动显现 */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.visible{opacity:1;transform:none}
.reveal.d1{transition-delay:.12s}.reveal.d2{transition-delay:.24s}.reveal.d3{transition-delay:.36s}

@media(max-width:920px){
  .hero{grid-template-columns:1fr;gap:20px}
  /* 移动端浮动卡改正常文档流：不再absolute定高，避免内容被裁/徽章乱飘 */
  .hero-visual{min-height:0;display:flex;flex-direction:column;gap:10px}
  .main-card{position:static;animation:none}
  .float-card.chip{position:static;align-self:flex-start;max-width:100%}
  .chip.c2{align-self:flex-end}
  .feat-row,.steps-grid,.faq-grid,.halves{grid-template-columns:1fr}
  .top-links,.top-right .safe-pill{display:none}
  .menu-btn{display:block}.topbar-inner{justify-content:space-between}
  .foot-main{grid-template-columns:1fr 1fr}.foot-cta{grid-column:1/-1}
  .file-card{grid-template-columns:48px 1fr}.file-actions{grid-column:1/-1;justify-content:flex-end}
}
@media(max-width:560px){
  .hide-s{display:none}.hgroup h1{font-size:22px}.drop-title{font-size:16px}.panda{display:none}
  .foot-main{grid-template-columns:1fr}.bottom,.company-strip{justify-content:center;text-align:center}
  .compare-imgs{grid-template-columns:1fr;max-width:420px}.vs{justify-self:center}
  /* —— 手机排版细化 —— */
  .topbar{padding:0 10px}
  .topbar-inner{padding:8px 12px;gap:10px;border-radius:14px}
  .brand{font-size:16px;gap:8px}
  .brand-logo{width:34px;height:34px;font-size:20px;border-radius:11px}
  .brand-text em{display:none}
  .top-right{display:none}
  .hero{margin-top:14px;padding:8px 16px 4px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:14px}
  .hero-cta .btn{flex:1 1 100%;text-align:center}
  .hero-stats{gap:14px;flex-wrap:wrap;margin-top:18px}
  .hstat b{font-size:17px}
  .upload-wrap{padding:0 16px 22px}
  .drop-zone{padding:36px 16px 24px;border-radius:18px}
  .drop-icon{font-size:40px}
  .drop-sub{font-size:13px;line-height:2}
  .overview{flex-wrap:wrap}
  .overview-actions{margin-left:0;width:100%}
  .overview-actions .btn{flex:1;text-align:center}
  .file-card{grid-template-columns:44px 1fr;padding:10px}
  .file-card img.thumb{width:44px;height:44px}
  .highlight{padding:20px 16px}
  .block{padding:16px}
  .quality-row{flex-wrap:wrap}
  .stat-grid b{font-size:13px}
  .step-card{padding:16px 12px}
  .modal{padding:10px}
  .modal-card{padding:16px}
  .preview-grid{grid-template-columns:1fr}
  .preview-grid img{max-height:240px}
  .foot-inner{padding:26px 16px 0}
  .foot-cta{text-align:center}
  .co-links{gap:10px;justify-content:center}
  .blob{opacity:.35}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}