@font-face{font-family:"Outfit";font-weight:600;font-display:swap;src:url(../fonts/outfit-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Outfit";font-weight:600;font-display:swap;src:url(../fonts/outfit-latin-ext-600-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Outfit";font-weight:700;font-display:swap;src:url(../fonts/outfit-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Outfit";font-weight:700;font-display:swap;src:url(../fonts/outfit-latin-ext-700-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"DM Sans";font-weight:400;font-display:swap;src:url(../fonts/dm-sans-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"DM Sans";font-weight:400;font-display:swap;src:url(../fonts/dm-sans-latin-ext-400-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"DM Sans";font-weight:500;font-display:swap;src:url(../fonts/dm-sans-latin-500-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"DM Sans";font-weight:500;font-display:swap;src:url(../fonts/dm-sans-latin-ext-500-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"DM Sans";font-weight:700;font-display:swap;src:url(../fonts/dm-sans-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"DM Sans";font-weight:700;font-display:swap;src:url(../fonts/dm-sans-latin-ext-700-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"DM Sans";font-weight:700;font-display:swap;src:url(../fonts/dm-sans-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"DM Sans";font-weight:700;font-display:swap;src:url(../fonts/dm-sans-latin-ext-700-normal.woff2) format("woff2");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
:root{--bg:#f4f8ff;--bg2:#e7efff;--card:#fff;--card2:#edf3ff;--line:#cddcfb;--tx:#102057;--mut:#56659a;--y:#1140e0;--y2:#4b74f2;--ink:#fff;--navy:#0a1f7a;--r:12px;--pad:20px;--maxw:1240px;--fh:"Outfit","Trebuchet MS",system-ui,sans-serif;--fb:"DM Sans",system-ui,sans-serif;--paper:6px 6px 0 #d3e1ff}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{background:var(--bg) url(../img/bg-sky.svg) 0 0/520px 520px;color:var(--tx);font:400 17px/1.75 var(--fb);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.skip{position:absolute;left:-999px}
.wrap{max-width:calc(var(--maxw) + 2*var(--pad));margin:0 auto;padding:0 var(--pad)}
b,strong{font-weight:700;color:var(--navy)}
:focus-visible{outline:3px solid #7aa0ff;outline-offset:3px}
::selection{background:var(--y);color:#fff}
.progress{position:fixed;left:0;right:0;top:0;height:4px;z-index:100;pointer-events:none}
.progress i{display:block;height:100%;transform:scaleX(0);transform-origin:0 50%;background:linear-gradient(90deg,#4b74f2,#1140e0)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:6px 30px;border:2px solid var(--y);border-radius:14px 4px 14px 4px;font:700 16px/1 var(--fh);letter-spacing:.02em;transition:transform .15s,box-shadow .15s,background .15s,color .15s}
.btn-red,.btn-green{background:var(--y);color:#fff;box-shadow:4px 4px 0 var(--navy)}
.btn-red:hover,.btn-green:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--navy)}
.btn-ghost{background:#fff;color:var(--y)}
.btn-ghost:hover{background:var(--y);color:#fff}
.btns{display:flex;flex-wrap:wrap;gap:16px;margin:24px 0 8px}
.hdr{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);box-shadow:0 6px 24px rgba(17,64,224,.08)}
.hdr-in{display:flex;align-items:center;gap:22px;min-height:72px}
.logo{display:inline-flex;flex:none}
.logo-img{height:42px;width:auto}
.nav{flex:1;min-width:0;display:flex;justify-content:center}
.nav-in{display:flex;gap:2px;padding:4px;border-radius:999px;background:var(--bg2);overflow-x:auto;scrollbar-width:none}
.nav-in::-webkit-scrollbar{display:none}
.nav a{flex:none;padding:9px 16px;border-radius:999px;color:var(--mut);font:600 15px/1 var(--fh)}
.nav a:hover{color:var(--y)}
.nav a.on{background:var(--y);color:#fff;box-shadow:0 4px 12px rgba(17,64,224,.35)}
.hdr-act{display:flex;align-items:center;gap:10px;flex:none}
.btn-hdr{min-height:42px;padding:4px 20px;font-size:15px;box-shadow:3px 3px 0 var(--navy)}
.hdr .btn-ghost{box-shadow:3px 3px 0 var(--line)}
.langdd{position:relative}
.langdd summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:7px;min-height:42px;padding:4px 14px;border:2px solid var(--line);border-radius:999px;background:#fff;font:700 14px/1 var(--fh);color:var(--navy)}
.langdd summary::-webkit-details-marker{display:none}
.langdd summary::after{content:"";width:6px;height:6px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.langdd summary svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.langdd-l{position:absolute;right:0;top:calc(100% + 10px);z-index:90;display:flex;flex-direction:column;min-width:190px;padding:8px;background:#fff;border:2px solid var(--y);border-radius:16px;box-shadow:6px 6px 0 var(--navy)}
.langdd-l .lang{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:10px;font-weight:500;font-size:15px}
.langdd-l .lang b{min-width:28px;font:700 13px/1 var(--fh);color:var(--y)}
.langdd-l .lang:hover{background:var(--card2)}
.langdd-l .lang.on{background:var(--y);color:#fff}
.langdd-l .lang.on b{color:#fff}
.hero{position:relative;background:var(--navy);color:#fff;isolation:isolate;overflow:hidden;padding-bottom:36px}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:56px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath fill='%23f4f8ff' d='M0 34c120 22 240 24 360 8s240-30 360-26 240 28 360 30 240-18 360-26v40H0z'/%3E%3C/svg%3E") center bottom/100% 100% no-repeat;z-index:1}
.hero-media{position:absolute;inset:0;z-index:-2}
.hero-bg{width:100%;height:100%;object-fit:cover;object-position:right center}
.hero-shade{position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(6,18,92,.55),rgba(6,18,92,0) 55%)}
.hero-body{padding-top:62px;padding-bottom:48px;min-height:430px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.hero-body>*{max-width:600px}
.hero h1{font:700 clamp(34px,4.7vw,58px)/1.04 var(--fh);letter-spacing:-.01em;color:#fff}
.hero h1::after{content:"";display:block;width:140px;height:12px;margin-top:14px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='12' viewBox='0 0 22 12'%3E%3Cpath d='M0 6c3-6 8-6 11 0s8 6 11 0' fill='none' stroke='%231140e0' stroke-width='2.2' stroke-linecap='round'/%3E%3C/svg%3E") 0 0/22px 12px repeat-x;filter:brightness(0) invert(1);opacity:.9}
.hero-lead{margin-top:16px;font-size:19.5px;line-height:1.55;color:#e4ecff}
.hero .btn-red,.hero .btn-green{background:#fff;color:var(--y);border-color:#fff;box-shadow:4px 4px 0 rgba(6,18,92,.6)}
.hero .btn-ghost{background:transparent;color:#fff;border-color:#fff;box-shadow:none}
.hero .btn-ghost:hover{background:#fff;color:var(--y)}
.fine{font-size:13px;color:#bfd0ff;margin-top:8px}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-top:20px}
.badge{display:inline-block;padding:7px 14px 6px;background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.55);border-radius:999px;font:600 13px/1 var(--fh);letter-spacing:.04em}
.crumbs{font-size:13px;color:#bfd0ff}
.crumbs a:hover{color:#fff;text-decoration:underline}
.crumbs b{color:#fff;font-weight:500}
.infobar{position:relative;z-index:2;margin-top:-30px}
.ib-in{display:grid;grid-template-columns:1.1fr 1fr 1fr 1.2fr;background:#fff;border:2px solid var(--line);border-radius:20px;box-shadow:var(--paper)}
.ib-score,.ib-item{display:flex;flex-direction:column;justify-content:center;padding:16px 24px 14px;border-right:2px dotted var(--line)}
.ib-item:last-child{border-right:0}
.ib-score{flex-direction:row;align-items:baseline;flex-wrap:wrap;gap:4px;background:linear-gradient(135deg,#eaf1ff,#fff);border-radius:18px 0 0 18px}
.ib-score b{font:700 44px/1 var(--fh);color:var(--y)}
.ib-score span{font-weight:700;color:var(--mut)}
.ib-score small{flex-basis:100%;font:600 12px/1 var(--fb);text-transform:uppercase;letter-spacing:.1em;color:var(--mut)}
.ib-item small{font:600 12px/1 var(--fb);text-transform:uppercase;letter-spacing:.1em;color:var(--mut)}
.ib-item b{font:600 19px/1.3 var(--fh);color:var(--navy)}
.quick{padding:44px 0 6px}
.quick-t{display:block;margin-bottom:18px;color:var(--navy);font:700 26px/1 var(--fh)}
.quick-t::after{content:"";display:block;width:88px;height:12px;margin-top:8px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='12' viewBox='0 0 22 12'%3E%3Cpath d='M0 6c3-6 8-6 11 0s8 6 11 0' fill='none' stroke='%231140e0' stroke-width='2.2' stroke-linecap='round'/%3E%3C/svg%3E") 0 0/22px 12px repeat-x}
.quick-g{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.qc{position:relative;display:flex;flex-direction:column;gap:5px;padding:20px 18px 18px;background:#fff;border:2px solid var(--line);border-radius:18px 6px 18px 6px;box-shadow:var(--paper);transition:transform .15s,box-shadow .15s,border-color .15s}
.qc:hover{transform:translate(-2px,-3px);box-shadow:9px 9px 0 #b9d0ff;border-color:var(--y)}
.qc-i{display:grid;place-items:center;width:50px;height:50px;margin-bottom:8px;border-radius:16px 4px 16px 4px;background:var(--y);color:#fff}
.qc-i svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.qc b{font:700 20px/1.15 var(--fh);color:var(--navy)}
.qc small{font-size:14px;line-height:1.45;color:var(--mut)}
.toc{margin-top:30px}
.toc-in{display:flex;align-items:center;gap:16px;padding-top:14px;padding-bottom:14px;border-top:2px solid var(--line);border-bottom:2px solid var(--line)}
.toc-t{flex:none;font:700 15px/1 var(--fh);color:var(--y)}
.toc-l{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:3px 4px}
.toc-l::-webkit-scrollbar{display:none}
.toc-l a{flex:none;display:inline-flex;gap:8px;align-items:center;padding:8px 14px 7px;background:#fff;border:2px solid var(--line);border-radius:999px;color:var(--mut);font:500 14px/1 var(--fb);white-space:nowrap}
.toc-l a b{font:700 12px/1 var(--fh);color:var(--y)}
.toc-l a:hover{border-color:var(--y);color:var(--y)}
.toc-l a.on{background:var(--y);border-color:var(--y);color:#fff}
.toc-l a.on b{color:#bfd0ff}
.sec{position:relative;padding:50px 0 14px}
.sec:nth-of-type(odd){background:linear-gradient(180deg,rgba(255,255,255,0),rgba(255,255,255,.92) 90px,rgba(255,255,255,.92) calc(100% - 90px),rgba(255,255,255,0))}
.sec .wrap{position:relative}
.sec .wrap::after{content:"";display:table;clear:both}
.sec h2{position:relative;font:700 clamp(28px,3.4vw,40px)/1.12 var(--fh);letter-spacing:-.01em;margin:0 78px 30px 0;padding:0 0 18px;color:var(--navy)}
.sec h2::after{content:"";position:absolute;left:0;bottom:0;width:132px;height:12px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='22' height='12' viewBox='0 0 22 12'%3E%3Cpath d='M0 6c3-6 8-6 11 0s8 6 11 0' fill='none' stroke='%231140e0' stroke-width='2.2' stroke-linecap='round'/%3E%3C/svg%3E") 0 0/22px 12px repeat-x}
.h2i{position:absolute;right:var(--pad);top:-4px;display:grid;place-items:center;width:58px;height:58px;border-radius:20px 5px 20px 5px;background:var(--y);box-shadow:4px 4px 0 var(--navy)}
.h2i svg{width:28px;height:28px;fill:none;stroke:#fff;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.txt{margin-bottom:17px;color:#26376f}
.txt a,.sm a,.list a,.tbl a,.kv a{color:var(--y);font-weight:700;border-bottom:2px solid #b9cdfb}
.txt a:hover,.sm a:hover{background:var(--y);color:#fff;border-bottom-color:var(--y)}
.sm{font-size:15px;line-height:1.62}
.h3-block{margin:28px 0 10px;font:700 24px/1.2 var(--fh);color:var(--y)}
.list{margin:0 0 20px;padding-left:0;list-style:none}
.list li{position:relative;margin-bottom:9px;padding-left:32px;color:#26376f}
.list li::before{content:"";position:absolute;left:6px;top:.62em;width:11px;height:11px;border-radius:3px 1px 3px 1px;background:var(--y);transform:rotate(45deg)}
.pic{float:right;width:min(34%,380px);margin:8px 0 20px 32px;padding:8px;background:#fff;border:2px solid var(--line);border-radius:6px;box-shadow:var(--paper);transform:rotate(1.4deg);shape-outside:margin-box}
.pic.pic-l{float:left;margin:8px 32px 20px 0;transform:rotate(-1.4deg)}
.pic img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:3px;background:var(--card2)}
.pic.shotw,.pic.shotp{width:min(34%,380px)}
.pic ~ .tbl-wrap,.pic ~ .kv,.pic ~ .steps,.pic ~ .grid,.pic ~ .btns{clear:both}
.kv{margin:20px 0 24px;border:2px solid var(--line);border-radius:var(--r);background:#fff;overflow:hidden;box-shadow:var(--paper)}
.kv-row{display:grid;grid-template-columns:minmax(150px,32%) 1fr;border-bottom:2px dotted var(--line)}
.kv-row:last-child{border-bottom:0}
.kv-k{padding:13px 18px 11px;background:var(--card2);font:700 16px/1.4 var(--fh);color:var(--y)}
.kv-v{padding:13px 18px;font-weight:500}
.tbl-wrap{margin:20px 0 24px;overflow-x:auto;border:2px solid var(--line);border-radius:var(--r);background:#fff;box-shadow:var(--paper)}
.tbl{width:100%;border-collapse:collapse;font-size:15.5px;line-height:1.5}
.tbl th{padding:14px 18px 12px;background:var(--y);color:#fff;text-align:left;font:600 15px/1.3 var(--fh);white-space:nowrap}
.tbl td{padding:13px 18px;border-top:2px dotted var(--line);vertical-align:top;color:#26376f}
.tbl tbody tr:nth-child(even) td{background:#f1f6ff}
.tbl td:first-child{font-weight:700;color:var(--navy)}
.steps{margin:20px 0 24px;padding:0;list-style:none;display:grid;gap:14px;counter-reset:s}
.step{display:flex;gap:18px;align-items:flex-start;padding:18px 20px;background:#fff;border:2px solid var(--line);border-radius:16px 4px 16px 4px;box-shadow:var(--paper)}
.step .num{flex:none;display:grid;place-items:center;width:46px;height:46px;border-radius:14px 4px 14px 4px;background:var(--y);color:#fff;font:700 21px/1 var(--fh)}
.step h3{font:700 20px/1.2 var(--fh);margin:3px 0 4px;color:var(--navy)}
.card{padding:20px;background:#fff;border:2px solid var(--line);border-radius:16px 4px 16px 4px;box-shadow:var(--paper)}
.card h3{font:700 20px/1.2 var(--fh);margin-bottom:6px;color:var(--y)}
.grid{display:grid;gap:18px;margin:20px 0}
.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.faq{display:grid;gap:12px}
.qa{background:#fff;border:2px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .15s,box-shadow .15s}
.qa:hover{border-color:#a9c2fa}
.qa summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:14px;padding:17px 20px;font:600 21px/1.28 var(--fh);color:var(--navy)}
.qa summary::-webkit-details-marker{display:none}
.qa summary i{flex:none;position:relative;width:30px;height:30px;border-radius:10px 3px 10px 3px;background:var(--y)}
.qa summary i::before,.qa summary i::after{content:"";position:absolute;left:50%;top:50%;width:12px;height:2.5px;background:#fff;transform:translate(-50%,-50%)}
.qa summary i::after{transform:translate(-50%,-50%) rotate(90deg);transition:transform .15s}
.qa[open]{border-color:var(--y);box-shadow:var(--paper)}
.qa[open] summary i::after{transform:translate(-50%,-50%) rotate(0)}
.qa[open] summary{background:var(--card2);color:var(--y)}
.qa-a{padding:16px 20px 18px;color:#26376f}
.formula{margin:18px 0;padding:15px 20px;background:var(--card2);border-left:5px solid var(--y);border-radius:0 12px 12px 0;color:var(--navy);font:500 16px/1.5 var(--fb)}
.author{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);gap:24px;margin:34px 0 12px;padding:24px;background:#fff;border:2px solid var(--line);border-radius:22px 6px 22px 6px;box-shadow:var(--paper)}
.au-by{font:700 12px/1 var(--fb);letter-spacing:.16em;text-transform:uppercase;color:var(--mut);margin-bottom:9px}
.au-top{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 12px}
.au-n{font:700 30px/1.1 var(--fh);color:var(--navy)}
.au-role{padding:5px 11px 4px;border-radius:999px;background:var(--y);color:#fff;font:600 13px/1 var(--fh)}
.au-role2{background:transparent;color:var(--y);border:2px solid var(--y)}
.au-meta{margin-top:10px}
.au-bio{padding-left:24px;border-left:2px dotted var(--line)}
.au-bio p{font-size:15px;line-height:1.62;color:var(--mut)}
.au-tags{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin-top:13px}
.au-tags span{padding:5px 11px 4px;background:var(--card2);border-radius:999px;font:500 12.5px/1 var(--fb);color:var(--y)}
.au-more{margin-left:auto;font:700 14px/1 var(--fh);color:var(--y)}
.share-in{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-top:16px;border-top:2px dotted var(--line)}
.share-t{font:700 14px/1 var(--fh);color:var(--mut)}
.sh{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:3px 14px;border:2px solid var(--line);border-radius:999px;background:#fff;font:500 13px/1 var(--fb)}
.sh svg{width:16px;height:16px}
.sh:hover{background:var(--y);color:#fff;border-color:var(--y)}
.ftr{position:relative;margin-top:70px;background:var(--navy);color:#c3d1ff}
.ftr::before{content:"";position:absolute;left:0;right:0;top:-55px;height:56px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath fill='%230a1f7a' d='M0 34c120 22 240 24 360 8s240-30 360-26 240 28 360 30 240-18 360-26v40H0z'/%3E%3C/svg%3E") center top/100% 100% no-repeat;transform:scaleY(-1)}
.paystrip{background:#08196a;border-bottom:1px solid #1d3598}
.ps-in{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;padding-top:15px;padding-bottom:15px}
.ps-pay,.ps-trust{display:flex;flex-wrap:wrap;gap:8px}
.ps-chip,.ps-badge{padding:6px 14px 5px;border:1px solid #3a56c4;border-radius:999px;font:600 13px/1 var(--fh);color:#dbe5ff}
.ps-badge{background:#fff;border-color:#fff;color:var(--y)}
.ftr-grid{display:grid;grid-template-columns:1.5fr repeat(5,1fr);gap:26px;padding:40px 0 28px}
.ftr .logo-img{height:46px}
.ftr .sm{margin-top:12px;color:#a9bbf5}
.ftr-h{display:block;margin-bottom:12px;font:700 16px/1 var(--fh);color:#fff}
.ftr-col a{display:block;padding:4px 0;color:#c3d1ff;font-size:15px}
.ftr-col a:hover{color:#fff;text-decoration:underline}
.ftr-badges{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:18px 0;border-top:1px dotted #3a56c4}
.b18{display:grid;place-items:center;width:44px;height:44px;border:2px solid #fff;border-radius:50%;font:700 16px/1 var(--fh);color:#fff}
.pill{padding:10px 15px 8px;border:1px solid #3a56c4;border-radius:999px;font-size:13px;color:#a9bbf5}
.ftr-txt{font-size:13px;line-height:1.62;color:#97aaec;margin-bottom:10px}
.copy{padding:16px 0 90px;font-size:13px;color:#97aaec}
.totop{position:fixed;right:18px;bottom:22px;z-index:70;width:48px;height:48px;border-radius:16px 4px 16px 4px;background:var(--y);color:#fff;box-shadow:3px 3px 0 var(--navy);font:700 20px/1 var(--fh);opacity:0;pointer-events:none;transition:opacity .2s}
.totop.show{opacity:1;pointer-events:auto}
.ckbar{position:fixed;left:16px;right:16px;bottom:16px;z-index:90;max-width:800px;margin:0 auto;display:flex;align-items:center;gap:16px;padding:15px 20px;background:#fff;border:2px solid var(--y);border-radius:18px 5px 18px 5px;box-shadow:6px 6px 0 var(--navy)}
.ckbar[hidden]{display:none}
.ckbar p{margin:0;font-size:14px;line-height:1.5}
.ck-b{display:flex;gap:8px;flex:none}
.ck-b .btn{min-height:40px;padding:4px 16px;font-size:14px;box-shadow:none}
.tabbar{display:none}
.js .rv{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.js .rv.in{opacity:1;transform:none}
.sec-flat{padding-top:10px}
@media(max-width:1080px){.hdr-in{flex-wrap:wrap;gap:10px 14px;padding-top:8px;padding-bottom:8px}.nav{order:3;flex:1 0 100%;justify-content:flex-start}.hdr-act{margin-left:auto}}
@media(max-width:1000px){.quick-g{grid-template-columns:repeat(3,1fr)}.ftr-grid{grid-template-columns:repeat(3,1fr)}.ftr-brand{grid-column:1/-1}.g4,.g3{grid-template-columns:repeat(2,1fr)}.author{grid-template-columns:1fr}.au-bio{padding-left:0;border-left:0;padding-top:14px;border-top:2px dotted var(--line)}.ib-in{grid-template-columns:1fr 1fr}.ib-score{border-radius:18px 0 0 0}}
@media(max-width:760px){body{font-size:16px}
:root{--pad:14px}
.hdr-in{min-height:60px}.logo-img{height:36px}.btn-hdr{display:none}
.hero-body{min-height:0;padding-top:34px;padding-bottom:36px}
.hero-shade{background:linear-gradient(180deg,rgba(6,18,92,.78),rgba(6,18,92,.5))}
.hero-bg{object-position:70% center}
.hero-lead{font-size:17px}
.pic,.pic.pic-l,.pic.shotw,.pic.shotp{float:none;width:calc(100% - 20px);max-width:440px;margin:12px auto 26px;transform:none}
.sec h2{margin-right:0;padding-right:66px}
.h2i{width:46px;height:46px;right:var(--pad)}
.h2i svg{width:23px;height:23px}
.quick-g{grid-template-columns:repeat(2,1fr);gap:12px}.ftr-grid{grid-template-columns:repeat(2,1fr)}
.ib-in{margin:0}
.ib-score,.ib-item{padding:12px 16px 10px}
.kv-row{grid-template-columns:1fr}
.toc-t{display:none}
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:95;display:grid;grid-template-columns:repeat(5,1fr);align-items:end;padding:6px 6px calc(6px + env(safe-area-inset-bottom));background:rgba(255,255,255,.98);border-top:2px solid var(--line)}
.tabbar a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:5px 2px;font:600 12px/1 var(--fh);color:var(--mut)}
.tabbar a svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tabbar .tb-cta{margin-top:-24px;color:var(--y)}
.tabbar .tb-cta svg{width:54px;height:54px;padding:14px;border-radius:18px 5px 18px 5px;background:var(--y);color:#fff;box-shadow:3px 3px 0 var(--navy)}
.ckbar{bottom:86px;flex-direction:column;align-items:flex-start}
.totop{bottom:90px}}
/* ===== premium layer ===== */
:root{--gold:#c8a04a;--gold2:#f3dc9c;--sh1:0 1px 0 rgba(255,255,255,.9) inset,0 2px 4px rgba(10,31,122,.05),0 22px 44px -22px rgba(10,31,122,.34);--sh2:0 1px 0 rgba(255,255,255,.9) inset,0 4px 10px rgba(10,31,122,.07),0 30px 56px -24px rgba(17,64,224,.42);--line:#d5e1fb}
body{background:radial-gradient(1100px 520px at 88% -80px,rgba(75,116,242,.16),transparent 70%),radial-gradient(900px 480px at -10% 420px,rgba(200,160,74,.10),transparent 70%),var(--bg) url(../img/bg-sky.svg) 0 0/520px 520px}
body::after{content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;mix-blend-mode:multiply;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E")}
.hdr{background:rgba(255,255,255,.78);backdrop-filter:blur(18px) saturate(1.5);border-bottom:0;box-shadow:0 12px 34px -16px rgba(10,31,122,.28)}
.hdr::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,var(--gold) 20%,var(--gold2) 50%,var(--gold) 80%,transparent);opacity:.8}
.hdr-in{gap:16px}
.nav a{padding:9px 13px;font-size:14.5px;letter-spacing:.005em}
.nav-in{background:linear-gradient(180deg,#e9f0ff,#dfe9ff);box-shadow:inset 0 1px 3px rgba(10,31,122,.12)}
.nav a.on{background:linear-gradient(135deg,#3a68f8,#0f35c4);box-shadow:0 6px 16px -4px rgba(17,64,224,.6),inset 0 1px 0 rgba(255,255,255,.35)}
.btn{border-radius:14px;border-width:1.5px;position:relative;overflow:hidden}
.btn-red,.btn-green{background:linear-gradient(135deg,#3a68f8,#0f35c4);border-color:#0f35c4;box-shadow:0 12px 26px -10px rgba(17,64,224,.65),inset 0 1px 0 rgba(255,255,255,.35)}
.btn-red::after,.btn-green::after{content:"";position:absolute;top:0;bottom:0;left:-60%;width:40%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.4),transparent);transform:skewX(-20deg);transition:left .6s}
.btn-red:hover,.btn-green:hover{transform:translateY(-2px);box-shadow:0 18px 32px -12px rgba(17,64,224,.7),inset 0 1px 0 rgba(255,255,255,.4)}
.btn-red:hover::after,.btn-green:hover::after{left:130%}
.btn-ghost{box-shadow:0 8px 20px -12px rgba(10,31,122,.4)}
.btn-hdr{box-shadow:0 10px 22px -10px rgba(17,64,224,.7),inset 0 1px 0 rgba(255,255,255,.35)}
.hdr .btn-ghost{box-shadow:0 6px 16px -10px rgba(10,31,122,.4)}
.langdd summary{box-shadow:0 6px 16px -10px rgba(10,31,122,.4)}
.langdd-l{border:1px solid var(--line);border-radius:18px;box-shadow:0 28px 60px -20px rgba(10,31,122,.5)}
.hero .btn-red,.hero .btn-green{background:linear-gradient(180deg,#fff,#e8efff);color:var(--y);border-color:#fff;box-shadow:0 14px 30px -10px rgba(3,10,60,.7)}
.hero-shade{background:radial-gradient(900px 480px at 18% 40%,rgba(6,18,92,.62),transparent 70%),linear-gradient(90deg,rgba(6,18,92,.68),rgba(6,18,92,0) 62%),linear-gradient(0deg,rgba(6,18,92,.35),transparent 40%)}
.hero h1{text-shadow:0 6px 30px rgba(3,10,60,.55)}
.hero h1::after{width:150px;background:linear-gradient(90deg,var(--gold),var(--gold2),transparent);height:3px;border-radius:3px;margin-top:20px}
.badge{background:rgba(255,255,255,.12);backdrop-filter:blur(8px);border-color:rgba(243,220,156,.65)}
.infobar{margin-top:-34px}
.ib-in{background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border:1px solid #fff;border-top:2px solid var(--gold);border-radius:22px;box-shadow:var(--sh2)}
.ib-score,.ib-item{border-right:1px solid var(--line)}
.ib-score{background:linear-gradient(135deg,#e6eeff,#fff 70%);border-radius:20px 0 0 20px}
.ib-score b{background:linear-gradient(135deg,#3a68f8,#0a1f7a);-webkit-background-clip:text;background-clip:text;color:transparent}
.quick-t::after,.sec h2::after{width:120px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--gold),var(--gold2) 60%,transparent)}
.qc{border:1px solid var(--line);border-radius:22px;background:linear-gradient(180deg,#fff,#f6f9ff);box-shadow:var(--sh1);overflow:hidden}
.qc::before{content:"";position:absolute;left:18px;right:18px;top:0;height:2px;background:linear-gradient(90deg,var(--gold),var(--gold2),transparent);opacity:0;transition:opacity .2s}
.qc:hover{transform:translateY(-5px);box-shadow:var(--sh2);border-color:#a9c2fa}
.qc:hover::before{opacity:1}
.qc-i{border-radius:16px;background:linear-gradient(135deg,#3a68f8,#0a1f7a);box-shadow:0 10px 20px -8px rgba(17,64,224,.7),inset 0 1px 0 rgba(255,255,255,.35)}
.toc-l a{border:1px solid var(--line);box-shadow:0 4px 10px -6px rgba(10,31,122,.25)}
.toc-in{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.h2i{border-radius:20px;background:linear-gradient(135deg,#3a68f8,#0a1f7a);box-shadow:0 14px 26px -10px rgba(17,64,224,.7),inset 0 1px 0 rgba(255,255,255,.35);outline:2px solid #fff;outline-offset:-5px}
.sec h2{letter-spacing:-.015em}
.txt{color:#22336b}
.list li::before{background:linear-gradient(135deg,var(--gold),#a9802c);width:9px;height:9px}
.pic{background:#fff;border:1px solid #e3ebfd;border-radius:10px;padding:10px 10px 14px;box-shadow:0 2px 3px rgba(10,31,122,.06),0 26px 50px -22px rgba(10,31,122,.5);transform:rotate(1.2deg)}
.pic.pic-l{transform:rotate(-1.2deg)}
.pic::before{content:"";position:absolute;left:50%;top:-13px;width:88px;height:26px;margin-left:-44px;background:linear-gradient(180deg,rgba(243,220,156,.85),rgba(200,160,74,.55));border-radius:3px;transform:rotate(-2deg);box-shadow:0 3px 8px rgba(10,31,122,.18);opacity:.9}
.pic{position:relative}
.pic img{border-radius:5px;box-shadow:inset 0 0 0 1px rgba(10,31,122,.08)}
.pic.shotw,.pic.shotp{padding:8px 8px 8px}
.kv,.tbl-wrap{border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh1)}
.kv-row{border-bottom:1px solid var(--line)}
.kv-k{background:linear-gradient(90deg,#edf3ff,#f6f9ff)}
.tbl th{background:linear-gradient(135deg,#0f35c4,#0a1f7a)}
.tbl td{border-top:1px solid var(--line)}
.tbl tbody tr:nth-child(even) td{background:#f4f8ff}
.step{border:1px solid var(--line);border-radius:20px;background:linear-gradient(180deg,#fff,#f7faff);box-shadow:var(--sh1)}
.step .num{border-radius:14px;background:linear-gradient(135deg,#3a68f8,#0a1f7a);box-shadow:0 8px 16px -6px rgba(17,64,224,.7),inset 0 1px 0 rgba(255,255,255,.35)}
.card{border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh1)}
.qa{border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 20px -14px rgba(10,31,122,.35)}
.qa[open]{border-color:#a9c2fa;box-shadow:var(--sh1)}
.qa summary i{border-radius:10px;background:linear-gradient(135deg,#3a68f8,#0a1f7a)}
.formula{border-left:4px solid var(--gold);background:linear-gradient(90deg,#f1f6ff,#fff)}
.author{border:1px solid var(--line);border-top:2px solid var(--gold);border-radius:24px;box-shadow:var(--sh2)}
.au-role{background:linear-gradient(135deg,#3a68f8,#0a1f7a)}
.sh{border:1px solid var(--line)}
.ftr{background:radial-gradient(900px 400px at 85% 0,rgba(75,116,242,.35),transparent 70%),linear-gradient(180deg,#0b2185,#06124f)}
.ftr::after{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--gold) 20%,var(--gold2) 50%,var(--gold) 80%,transparent)}
.paystrip{background:rgba(3,10,60,.45);border-bottom:1px solid rgba(255,255,255,.1)}
.ps-chip,.ps-badge{border-color:rgba(255,255,255,.22)}
.ps-badge{background:linear-gradient(180deg,#fff,#e8efff)}
.ftr-badges{border-top:1px solid rgba(255,255,255,.12)}
.b18{border-color:var(--gold2);color:var(--gold2)}
.pill{border-color:rgba(255,255,255,.2)}
.ftr-h{color:var(--gold2);letter-spacing:.04em}
.totop{border-radius:16px;background:linear-gradient(135deg,#3a68f8,#0a1f7a);box-shadow:0 12px 24px -8px rgba(17,64,224,.7)}
.ckbar{border:1px solid var(--line);border-radius:20px;box-shadow:0 30px 60px -20px rgba(10,31,122,.55)}
@media(max-width:1000px){.pic,.pic.pic-l{transform:none}}
@media(max-width:760px){.pic,.pic.pic-l,.pic.shotw,.pic.shotp{float:none;transform:none}.pic::before{display:none}.hdr::after{opacity:.6}.ib-score{border-radius:20px 20px 0 0}}