:root{
  --navy:#0a2350; --navy2:#0f2f66; --navy3:#163b78;
  --blue:#1d6ff2; --blue2:#4d9bff; --blue3:#8fc0ff;
  --ink:#16294a; --ink2:#2b3f63; --muted:#6b7c99; --line:#e3eaf5;
  --bg:#f5f8fd; --white:#fff;
  --red:#e5484d; --green:#12a06a; --amber:#f5a524;
  --r:14px; --r-lg:20px; --sd:0 10px 40px rgba(16,45,100,.10);
  --sd-sm:0 4px 18px rgba(16,45,100,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
button{cursor:pointer;border:0;background:none}
img,svg{display:block}
::selection{background:var(--blue);color:#fff}

.wrap{width:min(1180px,calc(100% - 48px));margin:0 auto}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--blue);font-weight:500;text-transform:uppercase}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--blue);border-radius:2px}
h2.sec{font-size:clamp(26px,3.4vw,40px);line-height:1.28;letter-spacing:-.02em;margin:14px 0 12px}
p.sub{color:var(--muted);font-size:15px;line-height:1.8;max-width:660px}
.center{text-align:center}
.center .sub{margin:0 auto}
.sec-pad{padding:96px 0}

/* progress + nav */
#progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--blue),var(--blue3));z-index:120;transition:width .1s linear}
.nav{position:fixed;top:0;left:0;right:0;height:70px;z-index:110;display:flex;align-items:center;transition:background .35s,box-shadow .35s,height .35s}
.nav.scrolled{height:62px;background:rgba(255,255,255,.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:0 1px 0 rgba(16,45,100,.08)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:600;letter-spacing:.02em}
.nav.scrolled .brand{color:var(--navy)}
.brand-mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--blue2),var(--blue));display:grid;place-items:center;box-shadow:0 4px 14px rgba(29,111,242,.35);flex:none}
.brand-mark svg{width:19px;height:19px}
.brand small{display:block;font-size:10px;font-weight:400;opacity:.62;letter-spacing:.06em;margin-top:1px}
.nav-links{display:flex;align-items:center;gap:30px;font-size:14px;color:rgba(255,255,255,.82)}
.nav.scrolled .nav-links{color:var(--ink2)}
.nav-links a{position:relative;transition:color .2s;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:2px;background:var(--blue2);transition:right .25s}
.nav-links a:hover{color:var(--blue2)}
.nav-links a:hover::after{right:0}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-login{font-size:13px;color:rgba(255,255,255,.86);white-space:nowrap;transition:color .2s}
.nav.scrolled .nav-login{color:var(--ink2)}
.nav-login:hover{color:var(--blue2)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:10px;font-size:14px;font-weight:500;transition:transform .22s,box-shadow .22s,background .22s,color .22s;white-space:nowrap}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(29,111,242,.28)}
.btn-primary:hover{background:#155fd8;transform:translateY(-2px);box-shadow:0 12px 28px rgba(29,111,242,.36)}
.btn-ghost{color:#fff;border:1px solid rgba(255,255,255,.32)}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.nav.scrolled .btn-ghost{color:var(--ink2);border-color:var(--line)}
.nav.scrolled .btn-ghost:hover{background:#fff}
.btn-light{background:#fff;color:var(--blue)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.16)}
.btn-outline{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-outline:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
.btn-lg{height:52px;padding:0 28px;font-size:15px;border-radius:12px}
.menu-toggle{display:none;width:40px;height:40px;border-radius:9px;align-items:center;justify-content:center;color:#fff}
.nav.scrolled .menu-toggle{color:var(--ink)}

/* hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;background:var(--navy);color:#fff;overflow:hidden;padding:110px 0 60px}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(120,170,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.055) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 80% 70% at 60% 45%,#000 20%,transparent 100%);-webkit-mask-image:radial-gradient(ellipse 80% 70% at 60% 45%,#000 20%,transparent 100%)}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.34;animation:drift 18s ease-in-out infinite alternate}
.orb.a{width:520px;height:520px;background:#1d6ff2;top:-180px;right:-80px}
.orb.b{width:420px;height:420px;background:#2f8fff;bottom:-220px;left:-100px;animation-delay:-6s}
.orb.c{width:300px;height:300px;background:#5a52d6;top:40%;left:45%;opacity:.18;animation-delay:-10s}
@keyframes drift{0%{transform:translate(0,0) scale(1)}100%{transform:translate(60px,-50px) scale(1.12)}}
.spark{position:absolute;width:3px;height:3px;border-radius:50%;background:#9cc6ff;opacity:.5;animation:twinkle 3.2s ease-in-out infinite}
@keyframes twinkle{0%,100%{opacity:.15;transform:scale(.7)}50%{opacity:.9;transform:scale(1.5)}}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr 1fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:9px;padding:7px 14px 7px 8px;border-radius:100px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);font-size:12.5px;color:#d5e5ff;backdrop-filter:blur(8px)}
.hero-badge b{background:var(--blue);color:#fff;font-size:11px;padding:3px 8px;border-radius:100px;font-weight:500}
.hero h1{font-size:clamp(36px,4.6vw,60px);line-height:1.18;letter-spacing:-.035em;margin:24px 0 18px;min-height:2.36em}
.hero h1 .accent{color:var(--blue3)}
.cursor{display:inline-block;width:3px;height:.92em;background:var(--blue3);vertical-align:-.12em;margin-left:3px;animation:blink .9s step-end infinite}
@keyframes blink{50%{opacity:0}}
.hero-desc{font-size:16px;line-height:1.85;color:#bfd0ea;max-width:520px}
.hero-actions{display:flex;gap:14px;margin:32px 0 26px;flex-wrap:wrap}
.hero-trust{display:flex;align-items:center;gap:18px;font-size:12.5px;color:#9db4d8;flex-wrap:wrap}
.hero-trust span{display:inline-flex;align-items:center;gap:6px}
.hero-trust svg{width:14px;height:14px;color:var(--blue3)}

/* mock window */
.hero-visual{position:relative;perspective:1200px}
.mock{position:relative;border-radius:16px;background:#fff;box-shadow:0 40px 90px rgba(0,0,0,.42),0 0 0 1px rgba(255,255,255,.12);overflow:hidden;transform:rotateY(-7deg) rotateX(3deg);transition:transform .5s cubic-bezier(.2,.8,.2,1);will-change:transform;animation:float 7s ease-in-out infinite}
@keyframes float{0%,100%{translate:0 0}50%{translate:0 -12px}}
.mock-bar{height:36px;background:#f7f9fd;border-bottom:1px solid #e8eef8;display:flex;align-items:center;gap:6px;padding:0 14px}
.mock-bar i{width:9px;height:9px;border-radius:50%;background:#dfe6f2}
.mock-bar i:nth-child(1){background:#ff6b6b}.mock-bar i:nth-child(2){background:#ffc857}.mock-bar i:nth-child(3){background:#4bd08b}
.mock-bar span{margin-left:12px;font-size:10.5px;color:#8a9ab5;background:#eef3fa;padding:3px 12px;border-radius:6px}
.mock-body{display:grid;grid-template-columns:118px 1fr;min-height:290px}
.mock-side{background:var(--navy2);padding:14px 10px;color:#a9c0e6}
.mock-logo{font-size:12px;font-weight:600;color:#fff;margin:0 0 14px 4px;display:flex;align-items:center;gap:6px}
.mock-logo i{width:14px;height:14px;border-radius:4px;background:var(--blue2);display:inline-block}
.mock-side div{font-size:10.5px;padding:7px 8px;border-radius:6px;margin-bottom:3px;display:flex;align-items:center;gap:7px}
.mock-side div.on{background:rgba(77,155,255,.22);color:#fff}
.mock-side div i{width:6px;height:6px;border-radius:2px;background:currentColor;opacity:.6}
.mock-main{padding:16px 18px;background:#f8fafd}
.mock-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.mock-head b{font-size:12px;color:var(--ink)}
.mock-head em{font-size:9.5px;color:#92a2bd;font-style:normal;background:#fff;border:1px solid var(--line);padding:3px 8px;border-radius:5px}
.mock-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}
.mock-stat{background:#fff;border:1px solid #e9eff8;border-radius:8px;padding:9px 10px}
.mock-stat small{display:block;font-size:9px;color:#93a3bd;margin-bottom:4px}
.mock-stat b{font-size:15px;color:var(--ink)}
.mock-stat b.up{color:var(--green)}
.mock-cal{background:#fff;border:1px solid #e9eff8;border-radius:8px;padding:9px;display:grid;grid-template-columns:26px repeat(5,1fr);gap:4px;font-size:8.5px}
.mock-cal .h{color:#9aabc5;text-align:center;padding-bottom:4px}
.mock-cal .t{color:#9aabc5;padding-top:5px}
.mock-cal .c{height:26px;border-radius:4px;background:#f3f7fd;position:relative;overflow:hidden}
.mock-cal .ev{position:absolute;inset:3px;border-radius:3px;background:#dbe9ff;color:#1d6ff2;font-size:7.5px;display:grid;place-items:center;white-space:nowrap;animation:evIn .6s both}
.mock-cal .ev.g{background:#d9f5e8;color:#12a06a}
.mock-cal .ev.o{background:#ffeeda;color:#c47a10}
@keyframes evIn{from{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}
.float-chip{position:absolute;background:#fff;border-radius:11px;box-shadow:0 12px 32px rgba(6,26,66,.24);padding:10px 14px;display:flex;align-items:center;gap:10px;font-size:11.5px;color:var(--ink);z-index:3;animation:float 5.5s ease-in-out infinite}
.float-chip .ic{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;flex:none}
.float-chip .ic svg{width:14px;height:14px}
.float-chip b{display:block;font-size:11.5px}
.float-chip small{display:block;font-size:9.5px;color:#8b9cb8;margin-top:2px}
.chip-1{top:-18px;right:-26px;animation-delay:-1s}
.chip-1 .ic{background:#e5f7ee;color:var(--green)}
.chip-2{bottom:34px;left:-34px;animation-delay:-3s}
.chip-2 .ic{background:#e6f0ff;color:var(--blue)}
.chip-3{bottom:-16px;right:16px;animation-delay:-4.5s}
.chip-3 .ic{background:#fff1e0;color:var(--amber)}

/* stats strip */
.stats-strip{position:relative;z-index:3;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-strip .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding:26px 0}
.stat{text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:29px;letter-spacing:-.03em;color:var(--navy);font-variant-numeric:tabular-nums}
.stat b i{font-style:normal;font-size:16px;margin-left:2px;color:var(--blue)}
.stat span{display:block;font-size:12.5px;color:var(--muted);margin-top:4px}

/* reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.09s}.reveal.d2{transition-delay:.18s}.reveal.d3{transition-delay:.27s}.reveal.d4{transition-delay:.36s}

/* pain */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:48px}
.pain-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 26px 26px;overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s}
.pain-card::before{content:"";position:absolute;inset:0;background:radial-gradient(240px circle at var(--mx,50%) var(--my,50%),rgba(29,111,242,.07),transparent 70%);opacity:0;transition:opacity .3s;pointer-events:none}
.pain-card:hover{transform:translateY(-6px);box-shadow:var(--sd);border-color:#d3e2fb}
.pain-card:hover::before{opacity:1}
.pain-ic{width:44px;height:44px;border-radius:12px;background:#eef4ff;color:var(--blue);display:grid;place-items:center;margin-bottom:18px}
.pain-ic svg{width:22px;height:22px}
.pain-card h3{font-size:17px;margin-bottom:9px}
.pain-card p{font-size:13.5px;line-height:1.8;color:var(--muted)}
.pain-num{position:absolute;top:18px;right:22px;font-size:34px;font-weight:600;color:#eef3fb;letter-spacing:-.05em}
.pain-demo{margin-top:18px;height:64px;border-radius:9px;background:#f7faff;border:1px solid #eaf0fa;padding:10px;display:flex;align-items:center;gap:6px;font-size:9.5px;overflow:hidden}
.pill{padding:6px 9px;border-radius:5px;background:#dbe9ff;color:#1d6ff2;white-space:nowrap;animation:pillIn .5s both}
.pill.bad{background:#ffe2e3;color:var(--red)}
.pain-card:hover .pill.bad{animation:shake .5s .2s}
@keyframes pillIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-4px)}40%{transform:translateX(4px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}
.pain-demo .arrow{color:#b9c8de}
.pain-demo .ok{color:var(--green);font-weight:500}

/* features */
.features{background:#fff}
.feat-layout{display:grid;grid-template-columns:340px 1fr;gap:48px;margin-top:48px;align-items:center}
.feat-tabs{display:flex;flex-direction:column;gap:10px}
.feat-tab{text-align:left;display:flex;gap:14px;align-items:flex-start;padding:18px;border-radius:var(--r);border:1px solid transparent;transition:all .28s;position:relative;width:100%}
.feat-tab:hover{background:#f7faff}
.feat-tab.on{background:#f2f7ff;border-color:#dbe8ff;box-shadow:var(--sd-sm)}
.feat-tab.on::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--blue)}
.feat-tab .n{width:30px;height:30px;border-radius:9px;background:#eaf1fd;color:#8ba3c9;display:grid;place-items:center;font-size:12px;font-weight:600;flex:none;transition:all .28s}
.feat-tab.on .n{background:var(--blue);color:#fff}
.feat-tab b{display:block;font-size:15px;margin-bottom:5px}
.feat-tab small{display:block;font-size:12.5px;color:var(--muted);line-height:1.65}
.feat-stage{background:#f8fafd;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;min-height:390px;position:relative;overflow:hidden}
.feat-panel{display:none;animation:panelIn .45s cubic-bezier(.2,.8,.2,1) both}
.feat-panel.on{display:block}
@keyframes panelIn{from{opacity:0;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}
.ui-window{background:#fff;border:1px solid #e7eef9;border-radius:11px;overflow:hidden;box-shadow:var(--sd-sm)}
.ui-bar{height:32px;background:#f7f9fd;border-bottom:1px solid #edf2fa;display:flex;align-items:center;gap:5px;padding:0 12px}
.ui-bar i{width:7px;height:7px;border-radius:50%;background:#dce4f1}
.ui-bar span{margin-left:10px;font-size:10px;color:#98a8c1}
.ui-pad{padding:16px}
.ui-title{font-size:13px;font-weight:600;margin-bottom:4px}
.ui-hint{font-size:11px;color:var(--muted);margin-bottom:14px}
.chat-box{background:#f5f8fd;border:1px dashed #cddcf3;border-radius:9px;padding:12px;font-size:11px;line-height:1.9;color:#5b6d8c;min-height:78px}
.chat-box .line{opacity:0;animation:lineIn .4s forwards}
@keyframes lineIn{to{opacity:1}}
.parsed{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}
.parsed .p{background:#fff;border:1px solid #e7eef9;border-radius:8px;padding:9px;font-size:10px;opacity:0;animation:lineIn .45s forwards}
.parsed .p b{display:block;font-size:11.5px;margin-bottom:3px;color:var(--ink)}
.parsed .p span{color:var(--muted)}
.tag{display:inline-block;font-size:9px;padding:2px 6px;border-radius:4px;background:#e5f7ee;color:var(--green);margin-top:5px}
.ui-table{width:100%;border-collapse:collapse;font-size:10.5px}
.ui-table th{text-align:left;color:#93a3bd;font-weight:400;padding:8px 6px;border-bottom:1px solid #edf2fa}
.ui-table td{padding:9px 6px;border-bottom:1px solid #f1f5fb;color:var(--ink2)}
.badge{font-size:9px;padding:2px 7px;border-radius:100px}
.badge.g{background:#e5f7ee;color:var(--green)}.badge.b{background:#e6f0ff;color:var(--blue)}.badge.o{background:#fff1e0;color:#c47a10}
.ui-cal{display:grid;grid-template-columns:52px repeat(5,1fr);gap:5px;font-size:9px}
.ui-cal .h{text-align:center;color:#9aabc5;padding-bottom:4px}
.ui-cal .t{color:#9aabc5;padding-top:7px}
.ui-cal .c{height:44px;border-radius:5px;background:#f4f8fe;position:relative}
.ui-cal .e{position:absolute;inset:4px;background:#dbe9ff;border-radius:4px;color:#1d6ff2;padding:4px;font-size:8.5px;line-height:1.35}
.ui-cal .e.warn{background:#ffe4e5;color:var(--red);border:1px dashed #f3a6a8}
.kpi-row{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-bottom:14px}
.kpi{background:#f7faff;border:1px solid #e9f0fb;border-radius:9px;padding:11px}
.kpi small{font-size:9.5px;color:#93a3bd;display:block;margin-bottom:5px}
.kpi b{font-size:17px;color:var(--navy)}
.kpi b.up{color:var(--green)}
.chart{height:118px;display:flex;align-items:flex-end;gap:10px;padding:12px 8px 0;border-bottom:1px solid #edf2fa}
.chart .bar{flex:1;border-radius:5px 5px 0 0;background:linear-gradient(180deg,var(--blue2),#cfe2ff);transform-origin:bottom;animation:growBar .8s cubic-bezier(.2,.8,.2,1) both}
@keyframes growBar{from{transform:scaleY(0)}to{transform:scaleY(1)}}
.chart-labels{display:flex;gap:10px;padding:6px 8px 0;font-size:9px;color:#9aabc5}
.chart-labels span{flex:1;text-align:center}

/* demo scheduler */
.demo-sec{background:linear-gradient(180deg,#f5f8fd 0%,#eef4fd 100%)}
.demo-board{margin-top:44px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sd);overflow:hidden}
.board-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 20px;background:var(--navy);color:#fff;flex-wrap:wrap}
.board-bar .l{display:flex;align-items:center;gap:11px;font-size:13.5px;font-weight:500}
.board-bar .l i{width:9px;height:9px;border-radius:50%;background:#4bd08b;box-shadow:0 0 0 4px rgba(75,208,139,.18);animation:twinkle 2s infinite}
.board-bar .r{display:flex;gap:9px;flex-wrap:wrap}
.board-bar button{height:32px;padding:0 13px;border-radius:7px;font-size:12px;font-weight:500;transition:.2s}
.b-reset{background:rgba(255,255,255,.12);color:#fff}
.b-reset:hover{background:rgba(255,255,255,.22)}
.b-ai{background:#fff;color:var(--blue)}
.b-ai:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(0,0,0,.18)}
.board-body{display:grid;grid-template-columns:220px 1fr 220px;min-height:390px}
.pool{padding:18px 16px;border-right:1px solid var(--line);background:#fbfcff}
.pool h4,.log h4{font-size:12px;color:var(--muted);font-weight:500;margin-bottom:6px}
.pool .tip,.log .tip{font-size:10.5px;color:#9aabc5;line-height:1.6;margin-bottom:14px}
.course{border:1px solid #e2ebf9;border-left:3px solid var(--blue);border-radius:9px;padding:10px 11px;background:#fff;margin-bottom:9px;cursor:grab;transition:transform .2s,box-shadow .2s,border-color .2s,opacity .2s;user-select:none}
.course:hover{transform:translateX(3px);box-shadow:var(--sd-sm)}
.course.sel{border-color:var(--blue);box-shadow:0 0 0 2px rgba(29,111,242,.16);transform:translateX(3px)}
.course.done{opacity:.4;cursor:default;pointer-events:none}
.course.done:hover{transform:none;box-shadow:none}
.course b{display:block;font-size:12px;margin-bottom:4px}
.course small{display:block;font-size:10px;color:var(--muted);line-height:1.55}
.course .cdot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--blue);margin-right:5px}
.cal-wrap{padding:18px;overflow-x:auto}
.cal{display:grid;grid-template-columns:64px repeat(7,minmax(84px,1fr));gap:6px;min-width:660px}
.cal .h{font-size:11px;color:var(--muted);text-align:center;padding:6px 0 10px;font-weight:500}
.cal .h.today{color:var(--blue)}
.cal .t{font-size:10.5px;color:#93a3bd;display:flex;align-items:center;justify-content:center}
.cell{height:72px;border-radius:8px;background:#f7faff;border:1px solid #eaf0fa;padding:5px;position:relative;transition:background .18s,border-color .18s,transform .18s;cursor:pointer}
.cell:hover{background:#eef5ff;border-color:#c9ddff}
.cell.over{background:#e3efff;border:1.5px dashed var(--blue);transform:scale(1.03)}
.cell.conflict{animation:shake .45s;background:#ffe9e9;border-color:#f6b6b8}
.cell.filled{background:#fff}
.cell .ev{height:100%;border-radius:6px;background:#e4efff;color:#1d5fd0;padding:6px;font-size:9.5px;line-height:1.4;display:flex;flex-direction:column;justify-content:center;animation:evIn .35s both}
.cell .ev.pre{background:#eef2f8;color:#7b8ca9}
.cell .ev.new{background:#dcf5e9;color:#0d7d54;border:1px solid #a8e2c7}
.cell .ev b{font-size:10px;display:block;margin-bottom:2px}
.cell .ev span{font-size:8.5px;opacity:.8}
.log{padding:18px 16px;border-left:1px solid var(--line);background:#fbfcff;display:flex;flex-direction:column}
.log-list{flex:1;display:flex;flex-direction:column;gap:8px;max-height:250px;overflow:auto}
.log-item{font-size:10.5px;line-height:1.6;color:var(--ink2);background:#fff;border:1px solid #e9eff8;border-radius:7px;padding:8px 9px;animation:lineIn .35s both}
.log-item.err{background:#fff2f2;border-color:#ffd9da;color:#b83236}
.log-item.ok{background:#effaf4;border-color:#cfeedd;color:#0d7d54}
.log-item time{display:block;font-size:9px;color:#a8b6cc;margin-bottom:2px}
.score{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:8px;text-align:center}
.score div{background:#fff;border:1px solid #e9eff8;border-radius:8px;padding:9px 4px}
.score b{display:block;font-size:20px;color:var(--navy);font-variant-numeric:tabular-nums}
.score b.good{color:var(--green)}
.score small{font-size:9.5px;color:var(--muted)}
.demo-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border-top:1px solid var(--line);background:#fafcff;flex-wrap:wrap}
.demo-foot p{font-size:12.5px;color:var(--muted)}
.demo-foot p b{color:var(--ink)}

/* pricing */
.pricing{background:#fff}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:56px}
.price-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 26px;transition:transform .3s,box-shadow .3s,border-color .3s}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--sd)}
.price-card.hot{border:2px solid var(--blue);box-shadow:0 16px 40px rgba(29,111,242,.14)}
.price-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--blue);color:#fff;font-size:11px;padding:5px 16px;border-radius:100px;white-space:nowrap;box-shadow:0 6px 14px rgba(29,111,242,.3)}
.price-name{font-size:16px;font-weight:600}
.price-desc{font-size:12px;color:var(--muted);margin:5px 0 18px;min-height:34px;line-height:1.5}
.price-num{font-size:36px;font-weight:600;letter-spacing:-.04em;color:var(--navy);line-height:1}
.price-num em{font-style:normal;font-size:15px;font-weight:400;color:var(--muted)}
.price-num small{font-size:13px;font-weight:400;color:var(--muted)}
.price-seat{font-size:12px;color:var(--blue);background:#eef4ff;display:inline-block;padding:4px 10px;border-radius:6px;margin:12px 0 18px}
.price-list{list-style:none;border-top:1px solid var(--line);padding-top:18px;margin-bottom:22px}
.price-list li{font-size:12.5px;color:var(--ink2);padding:6px 0;display:flex;gap:9px;align-items:flex-start;line-height:1.5}
.price-list li svg{width:14px;height:14px;color:var(--green);flex:none;margin-top:2px}
.price-card .btn{width:100%}
.trust-row{margin-top:56px;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.quote{background:#f8fafd;border:1px solid var(--line);border-radius:var(--r);padding:22px}
.quote p{font-size:13px;line-height:1.85;color:var(--ink2);margin-bottom:14px}
.quote .who{display:flex;align-items:center;gap:10px;font-size:11.5px;color:var(--muted)}
.avatar{width:32px;height:32px;border-radius:50%;background:#dde9ff;color:var(--blue);display:grid;place-items:center;font-size:12px;font-weight:600}
.certs{margin-top:32px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.cert{display:flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:100px;padding:8px 16px;font-size:11.5px;color:var(--muted);background:#fff}
.cert svg{width:14px;height:14px;color:var(--blue)}

/* contact */
.contact{position:relative;background:var(--navy);color:#fff;overflow:hidden}
.contact .orb.a{opacity:.24}
.contact .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1fr 440px;gap:64px;align-items:start}
.contact h2.sec{color:#fff}
.contact .sub{color:#b8cbe8}
.contact-info{margin-top:38px;display:flex;flex-direction:column;gap:20px}
.ci{display:flex;gap:14px;align-items:flex-start}
.ci .ic{width:40px;height:40px;border-radius:11px;background:rgba(255,255,255,.1);display:grid;place-items:center;flex:none}
.ci .ic svg{width:18px;height:18px;color:var(--blue3)}
.ci b{display:block;font-size:14px;margin-bottom:4px}
.ci span{display:block;font-size:12.5px;color:#a9c0e2;line-height:1.6}
.qr-box{margin-top:32px;display:inline-flex;gap:16px;align-items:center;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);border-radius:var(--r);padding:14px 18px;cursor:pointer;transition:.25s}
.qr-box:hover{background:rgba(255,255,255,.13);transform:translateY(-2px)}
.qr-box canvas,.qr-box .qr-img{width:76px;height:76px;border-radius:6px;background:#fff;object-fit:contain;flex:none}
.qr-box b{font-size:13.5px;display:block;margin-bottom:5px}
.qr-box small{font-size:11.5px;color:#a9c0e2;line-height:1.6;display:block}
.form{background:#fff;border-radius:var(--r-lg);padding:28px;color:var(--ink);box-shadow:0 24px 60px rgba(0,0,0,.24)}
.form h3{font-size:19px;margin-bottom:5px}
.form .fh{font-size:12.5px;color:var(--muted);margin-bottom:22px;line-height:1.6}
.field{margin-bottom:15px}
.field label{display:block;font-size:12.5px;margin-bottom:7px;color:var(--ink2)}
.field input,.field select{width:100%;height:42px;border:1px solid var(--line);border-radius:9px;padding:0 12px;font-size:13px;color:var(--ink);background:#fff;outline:none;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(29,111,242,.1)}
.agree{display:flex;gap:8px;align-items:flex-start;font-size:11.5px;color:var(--muted);line-height:1.6;margin:4px 0 18px;cursor:pointer}
.agree input{margin-top:2px;accent-color:var(--blue)}
.agree a{color:var(--blue)}
.form .btn{width:100%;height:46px}
.form-note{font-size:10.5px;color:#9aabc5;text-align:center;margin-top:12px;line-height:1.6}
.placeholder-note{margin-top:22px;padding:12px 14px;border:1px dashed rgba(255,255,255,.28);border-radius:9px;font-size:11.5px;line-height:1.8;color:#a9c0e2}
.placeholder-note b{color:var(--blue3)}

/* footer */
.footer{background:#071c3f;color:#8ba4c9;padding:36px 0 24px;font-size:12px}
.footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start}
.footer b{color:#fff;font-size:14px;display:block;margin-bottom:7px}
.footer .fl{display:flex;gap:22px;flex-wrap:wrap}
.footer a:hover{color:var(--blue3)}
.footer .copy{border-top:1px solid rgba(255,255,255,.1);margin-top:26px;padding-top:18px;text-align:center;font-size:11px;color:#6f88ad}

/* float bar */
.float-bar{position:fixed;right:20px;top:50%;transform:translateY(-50%);z-index:100;display:flex;flex-direction:column;gap:10px}
.fb{position:relative;width:46px;height:46px;border-radius:12px;background:#fff;box-shadow:0 6px 22px rgba(11,38,84,.16);display:grid;place-items:center;color:var(--blue);transition:.25s;border:1px solid var(--line)}
.fb:hover{background:var(--blue);color:#fff;transform:translateX(-3px)}
.fb svg{width:19px;height:19px}
.fb .fb-tip{position:absolute;right:56px;top:50%;transform:translateY(-50%) translateX(8px);background:var(--navy);color:#fff;font-size:11.5px;padding:7px 12px;border-radius:7px;white-space:nowrap;opacity:0;pointer-events:none;transition:.22s}
.fb:hover .fb-tip{opacity:1;transform:translateY(-50%) translateX(0)}
.fb.top{opacity:0;pointer-events:none}
.fb.top.show{opacity:1;pointer-events:auto}

/* modal + toast */
.mask{position:fixed;inset:0;z-index:200;background:rgba(7,25,56,.62);backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;pointer-events:none;transition:opacity .25s}
.mask.on{opacity:1;pointer-events:auto}
.modal{background:#fff;border-radius:var(--r-lg);padding:30px;width:min(380px,100%);text-align:center;transform:translateY(18px) scale(.97);transition:transform .3s cubic-bezier(.2,.8,.2,1);box-shadow:0 30px 80px rgba(0,0,0,.3)}
.mask.on .modal{transform:none}
.modal h3{font-size:19px;margin-bottom:8px}
.modal p{font-size:12.5px;color:var(--muted);line-height:1.8;margin-bottom:20px}
.modal canvas,.modal .qr-img{display:block;width:190px;height:190px;margin:0 auto 14px;border:1px solid var(--line);border-radius:10px;background:#fff;object-fit:contain}
.modal .m-note{font-size:11px;color:#9aabc5;margin:0}
.modal .btn{width:100%;margin-top:16px}
.modal .close-x{position:absolute;top:14px;right:16px;font-size:22px;color:#9aabc5;line-height:1}
.modal{position:relative}
.demo-modal{width:min(460px,100%);text-align:left}
.demo-modal h3{text-align:left}
.demo-modal ul{list-style:none;margin:16px 0 4px}
.demo-modal li{font-size:12.5px;color:var(--ink2);padding:9px 0 9px 24px;position:relative;border-bottom:1px solid #f0f4fa;line-height:1.6}
.demo-modal li::before{content:"";position:absolute;left:4px;top:16px;width:7px;height:7px;border-radius:50%;background:var(--blue)}
.toast{position:fixed;left:50%;top:86px;transform:translate(-50%,-16px);z-index:300;background:var(--navy);color:#fff;padding:11px 20px;border-radius:10px;font-size:13px;box-shadow:0 12px 32px rgba(7,25,56,.3);opacity:0;pointer-events:none;transition:.28s;max-width:min(90vw,460px);text-align:center}
.toast.on{opacity:1;transform:translate(-50%,0)}
.toast.err{background:#b83236}
.toast.ok{background:#0d7d54}

/* responsive */
@media(max-width:1080px){
  .board-body{grid-template-columns:190px 1fr}
  .log{grid-column:1/-1;border-left:0;border-top:1px solid var(--line)}
  .log-list{max-height:150px}
  .feat-layout{grid-template-columns:1fr;gap:28px}
  .feat-tabs{display:grid;grid-template-columns:repeat(2,1fr)}
  .contact .wrap{grid-template-columns:1fr;gap:36px}
}
@media(max-width:820px){
  .nav-login{display:none}
  .nav-links{display:none}
  .menu-toggle{display:flex}
  .nav-links.open{display:flex;position:absolute;top:62px;left:0;right:0;background:#fff;flex-direction:column;padding:18px 24px;gap:18px;color:var(--ink);box-shadow:var(--sd)}
  .nav.scrolled .nav-links.open a{color:var(--ink)}
  .hero .wrap{grid-template-columns:1fr;gap:40px;padding-top:20px}
  .hero{padding:120px 0 60px}
  .hero h1{min-height:0}
  .hero-visual{max-width:520px;margin:0 auto;width:100%}
  .chip-1{right:0}.chip-2{left:0}
  .pain-grid,.price-grid,.trust-row{grid-template-columns:1fr}
  .stats-strip .wrap{grid-template-columns:repeat(2,1fr);gap:20px 0}
  .stat:nth-child(2){border-right:0}
  .sec-pad{padding:70px 0}
  .wrap{width:min(100% - 32px,1180px)}
  .float-bar{right:12px}
  .board-body{grid-template-columns:1fr}
  .pool{border-right:0;border-bottom:1px solid var(--line)}
  .pool-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
  .course{margin-bottom:0}
  .feat-tabs{grid-template-columns:1fr}
  .demo-foot{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){
  .hero-actions .btn{width:100%}
  .pool-list{grid-template-columns:1fr}
  .mock-body{grid-template-columns:88px 1fr}
  .float-chip{display:none}
  .btn-ghost{display:none}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}