/* 样式/main.css */
@font-face{font-family:RadiantSans;src:local("Helvetica Neue");font-display:swap}
:root{--orange:#ca5618;--black:#080808;--paper:#f7f6f2;--ink:#242522;--muted:#92938f;--nav-height:78px;--ease:cubic-bezier(.22,.68,0,1.01)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:134px}body{margin:0;background:var(--black);color:#f1f1ee;font-family:RadiantSans,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{color:inherit}button:not(:disabled),a,select:not(:disabled){cursor:pointer}button:disabled,select:disabled{cursor:not-allowed}button{background:none;border:0}a:focus-visible,button:focus-visible,select:focus-visible{outline:2px solid var(--orange);outline-offset:6px}img{display:block;max-width:100%;height:auto}figure,p,h1,h2,h3,dl,dd{margin:0}button{padding:0}::selection{background:#b27d45;color:white}.shell{width:calc(100% - 128px);max-width:1440px;margin-inline:auto}.dark{background:#080808}.charcoal{background:#191a1b}.light{background:#eeefeb;color:var(--ink)}.paper{background:var(--paper);color:var(--ink)}.outdoor{background:#121916}.section-pad{padding-block:108px}.eyebrow{font-size:11px;letter-spacing:.2em;font-weight:400;line-height:1.7;color:var(--muted)}h1,h2,h3{font-weight:400}.chapter-heading{text-align:center;margin-bottom:74px}.chapter-heading h2,.cover-content h2{font-size:clamp(36px,4.2vw,68px);letter-spacing:.04em;line-height:1.4;margin-top:22px}.chapter-heading>p:last-child{font-size:15px;color:#9c9d99;letter-spacing:.08em;margin-top:20px}.light .chapter-heading>p:last-child,.paper .chapter-heading>p:last-child{color:#777b73}.copy h3{font-size:clamp(30px,3vw,46px);line-height:1.55;letter-spacing:.025em;margin-bottom:26px}.copy>p:not(.eyebrow):not(.small-note):not(.water-value):not(.paper-tagline){font-size:15px;line-height:2.15;color:#a8aaa7;max-width:480px}.copy>p+p{margin-top:19px}.light .copy>p:not(.eyebrow):not(.small-note),.paper .copy>p:not(.eyebrow):not(.small-note){color:#747970}.copy .eyebrow{margin-bottom:23px}.small-note{font-size:11px;color:#7f827d;line-height:1.8;letter-spacing:.02em;margin-top:22px}.split{display:grid;grid-template-columns:1.1fr .9fr;gap:90px;align-items:center}.split.reverse{grid-template-columns:.9fr 1.1fr}.split.reverse .media{order:2}.split.reverse .copy{order:1}.media{position:relative;min-width:0}.media img{width:100%;object-fit:cover}.media figcaption{display:flex;justify-content:space-between;gap:20px;font-size:10px;letter-spacing:.06em;margin-top:18px;color:#a5a7a1}.media figcaption span{color:#696e66;font-size:9px}.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px}.metrics strong{font-size:clamp(38px,4vw,63px);font-weight:300;line-height:1.1;letter-spacing:-.045em;display:block;font-variant-numeric:tabular-nums}.metrics strong span{font-size:.46em;letter-spacing:0}.metrics strong.words{font-size:clamp(20px,2.4vw,35px);letter-spacing:0;line-height:1.16;font-weight:400}.metrics p{color:#92958d;font-size:12px;margin-top:20px;line-height:1.7}.metrics.three{grid-template-columns:repeat(3,1fr)}.line-button{font-size:12px;display:inline-flex;justify-content:space-between;gap:45px;align-items:center;border-bottom:1px solid #9b9c98;padding:15px 0;transition:color .2s,border-color .2s}.line-button:hover{color:var(--orange);border-color:var(--orange)}.line-button span{font-size:21px;font-weight:300}.skip-link{position:fixed;z-index:500;top:-100px;left:20px;background:#fff;color:#111;padding:14px 22px}.skip-link:focus{top:15px}
/* 导航 */
.site-header{position:fixed;z-index:100;inset:0 0 auto;background:rgba(8,8,8,.8);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);transition:background .3s}.main-nav{height:var(--nav-height);display:flex;justify-content:space-between;align-items:center}.brand{display:flex;align-items:center;gap:15px;white-space:nowrap}.brand-cn{font-weight:600;letter-spacing:.16em;font-size:22px}.brand-divider{font-size:20px;color:#5c5c58;font-weight:300}.brand-en{font-size:19px;letter-spacing:.035em}.desktop-nav{display:flex;gap:35px;align-items:center}.desktop-nav a{font-size:12px;letter-spacing:.06em;color:#c4c4bf;transition:color .2s}.desktop-nav a:hover{color:#fff}.desktop-nav .nav-buy{color:#eee;border-bottom:1px solid #747570;padding-bottom:6px;margin-bottom:-6px}.nav-buy span{padding-left:18px}.sub-nav{display:flex;align-items:center;justify-content:space-between;height:0;overflow:hidden;opacity:0;transition:height .35s,opacity .35s}.site-header.scrolled{background:rgba(8,8,8,.94)}.site-header.scrolled .sub-nav{height:47px;opacity:1}.sub-name{font-size:14px}.sub-name span{font-size:11px;color:#868881;margin-left:10px}.sub-nav>div{display:flex;gap:34px;align-items:center;font-size:11px;color:#b1b2ad}.sub-nav a.active,.sub-nav a:hover{color:var(--orange)}.sub-nav>div>a:last-child span{margin-left:12px}.mobile-actions,.mobile-menu{display:none}
/* 首屏 */
.hero{height:100svh;min-height:680px;max-height:1280px;position:relative;background:#070708;overflow:hidden}.hero-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.42),rgba(0,0,0,.02) 70%),linear-gradient(0deg,rgba(0,0,0,.85),transparent 28%)}.hero-content{position:relative;padding-top:calc(50svh - 65px);z-index:1}.hero-content .eyebrow{font-size:10px;color:#97998d}.hero h1{font-size:clamp(58px,6.6vw,106px);line-height:1.3;letter-spacing:.12em;margin:20px 0 15px}.hero h2{font-size:18px;letter-spacing:.14em}.hero-intro{font-size:13px;line-height:2;color:#aeafa7;margin-top:23px;letter-spacing:.04em}.hero-buttons{display:flex;gap:30px;margin-top:33px;align-items:center}.outline-button{border:1px solid #62655b;font-size:12px;padding:14px 20px;min-width:156px;display:flex;justify-content:space-between;gap:32px;transition:background .25s,border-color .25s}.outline-button:hover{background:#ffffff12;border-color:#b7b9af}.text-button{font-size:12px}.text-button span{margin-left:18px}.hero-bottom{position:absolute;bottom:25px;left:0;right:0;display:flex;justify-content:space-between;align-items:center;font-size:9px;letter-spacing:.18em;color:#75776f}.hero-bottom>a{display:flex;gap:18px;align-items:center;color:#b1b4a7;font-size:10px}.scroll-line{width:1px;height:28px;background:linear-gradient(#b4b6af,transparent)}.hero-bottom .image-note{letter-spacing:.03em;font-size:9px}
/* 概览 */
.overview{min-height:88svh;display:flex;align-items:center}.overview>.shell{display:grid;grid-template-columns:1fr 1fr;gap:48px 100px}.intro-heading h2{font-size:clamp(32px,3.8vw,56px);line-height:1.5;letter-spacing:.05em;margin-top:20px}.intro-body{font-size:13px;line-height:2.25;color:#979a92;max-width:570px;padding-top:43px}.features{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-top:56px}.feature-number{color:#7e8079;font-size:10px;letter-spacing:.1em}.features h3{font-size:clamp(21px,2.4vw,35px);line-height:1.12;letter-spacing:-.025em;margin-top:22px}.features p{color:#96998f;font-size:11px;line-height:1.7;margin-top:22px}
/* 光学 */
.chapter-cover{height:86svh;min-height:570px;max-height:950px;position:relative;overflow:hidden}.chapter-cover>img,.craft-cover>img{width:100%;height:100%;object-fit:cover}.cover-gradient{position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.78),transparent 65%)}.cover-content{position:absolute;bottom:85px;left:0;right:0}.cover-content h2{margin-top:17px}.cover-content>p:last-child{margin-top:20px;font-size:14px;color:#bebeb4;letter-spacing:.12em}.cover-note{position:absolute;bottom:25px;right:64px;color:#a9a99b;font-size:9px}.optical-body .metrics{margin-bottom:110px}.optical-detail{min-height:520px}.optical-detail .media img{min-height:390px;object-fit:cover}.micro-point{margin-top:29px}.micro-point>span{display:block;font-size:11px;letter-spacing:.1em;color:#ddddce}.micro-point p{color:#71766b;font-size:12px;margin-top:10px}.scene-strip{height:55svh;min-height:380px;position:relative;overflow:hidden}.scene-strip>img{width:100%;height:100%;object-fit:cover;object-position:center 60%}.scene-strip:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#0007,transparent)}.scene-caption{position:absolute;inset:auto 0 35px;z-index:1;display:flex;justify-content:space-between;align-items:flex-end}.scene-caption>p{font-size:30px;line-height:1.65;letter-spacing:.07em}.scene-caption>span{font-size:9px;color:#c1c4b8}
/* 色彩与结构 */
.color-split{gap:80px}.color-photo img{aspect-ratio:1.4;object-fit:cover;object-position:left center}.light .metrics{margin-top:74px}.light .metrics p,.paper .metrics p{color:#81857c}.floating-split{margin-top:85px;min-height:350px;grid-template-columns:.85fr 1.15fr}.floating-model{height:370px;position:relative;isolation:isolate}.model-layer{position:absolute;width:64%;height:116px;left:14%;border-radius:50%;transition:transform 1s var(--ease),opacity 1s;background:linear-gradient(155deg,#a7aead16,#dfeae35e 30%,#afbabb35);border:2px solid #858d85;top:115px;box-shadow:0 6px 0 #41473f,0 10px 0 #30372e}.model-glass{border:2px solid #aebbb0;z-index:3;box-shadow:0 3px 0 #95a796;transform:translateY(-25px);background:linear-gradient(130deg,#dbebe883,transparent,#ffffff60)}.model-buffer{z-index:2;transform:translateY(0);background:#e3e6df;box-shadow:0 3px 0 #858f80;border:7px solid #aab3a5}.model-frame{z-index:1;transform:translateY(20px);border:16px solid #30332f;border-top:11px solid #555951;box-shadow:0 3px 0 #b18043,0 7px 0 #32352e;background:#c3cbb31a}.model-layer span{position:absolute;left:calc(100% + 25px);top:40%;width:170px;font-size:10px;color:#767b71;opacity:0;transform:translateX(-10px);transition:opacity .6s,transform .6s}.floating-model.expanded .model-glass{transform:translateY(-95px)}.floating-model.expanded .model-buffer{transform:translateY(15px)}.floating-model.expanded .model-frame{transform:translateY(105px)}.floating-model.expanded .model-layer span{opacity:1;transform:translateX(0)}.model-orbit{position:absolute;left:8%;width:74%;height:145px;border:1px solid #b9bcb53a;border-radius:50%;top:248px}.diagram-note{position:absolute;bottom:10px;left:0;right:0;text-align:center;color:#71776a;font-size:9px;letter-spacing:.1em}
/* 原生适配 */
.fit-intro{align-items:start;margin-bottom:65px;gap:120px}.fit-intro .copy>p{max-width:570px}.fit-statement{font-size:26px;line-height:1.8;color:#babdb7;letter-spacing:.07em}.fit .metrics{margin-bottom:45px}.fit-detail{min-height:565px;padding-block:55px;gap:100px}.cap-diagram{position:relative}.cap-diagram svg{width:100%;display:block}.cap-diagram .diagram-note{bottom:5px}.detail-index{font-size:10px;letter-spacing:.12em;display:block;color:#7b8077;margin-bottom:22px}.wide-view img{aspect-ratio:1.45;object-fit:cover}.frame-corner{position:absolute;width:24px;height:24px;border-color:#c8cdbd;border-style:solid;opacity:.7}.corner-tl{top:20px;left:20px;border-width:1px 0 0 1px}.corner-tr{top:20px;right:20px;border-width:1px 1px 0 0}.corner-bl{bottom:48px;left:20px;border-width:0 0 1px 1px}.corner-br{bottom:48px;right:20px;border-width:0 1px 1px 0}.install-visual{height:390px;position:relative;overflow:hidden}.install-axis{position:absolute;width:85%;height:1px;left:5%;top:180px;background:repeating-linear-gradient(90deg,#444940 0 8px,transparent 8px 15px)}.install-lens{position:absolute;width:190px;height:210px;left:9%;top:85px;background:linear-gradient(90deg,#22252a,#424648 50%,#161919 88%);border-radius:35px 45% 45% 35px;box-shadow:inset 15px 0 30px #0a0c0c,0 20px 30px #0003;border-right:4px solid #55574e}.install-lens:before{content:"";position:absolute;inset:14px 12px 14px auto;width:85px;border-radius:50%;background:radial-gradient(ellipse,#18251a,#030906 68%,#474c42 69%,#080c09 75%);border:3px solid #5b6051}.install-lens:after{content:"";position:absolute;inset:0 auto 0 18px;width:30px;background:repeating-linear-gradient(0deg,#32362e 0 2px,#161913 2px 6px);border-radius:5px}.install-filter{position:absolute;left:58%;top:109px;width:69px;height:168px;border:8px solid #373c30;border-left:3px solid #b07c40;border-radius:50%;background:linear-gradient(100deg,transparent,#97c5a210,transparent);box-shadow:3px 0 0 #151912;transition:transform 1s var(--ease)}.install-hood{position:absolute;left:82%;top:77px;width:125px;height:235px;border:16px solid #31362d;border-right:24px solid #242720;border-radius:35% 28% 28% 35%;opacity:0;transform:translateX(100px);transition:transform 1s var(--ease),opacity .6s}.install-visual[data-step="2"] .install-filter,.install-visual[data-step="3"] .install-filter{transform:translateX(-102px)}.install-visual[data-step="3"] .install-hood{opacity:1;transform:translateX(-215px)}.install-steps{display:flex;flex-direction:column;margin-top:32px;gap:0}.install-steps button{text-align:left;color:#787e72;padding:14px 0;font-size:12px;transition:color .2s}.install-steps button>span{font-size:11px;padding-right:19px;letter-spacing:.06em}.install-steps button.active{color:#dedfcf}.install-steps button.active span{color:var(--orange)}
/* 防护 */
.water-photo img{aspect-ratio:1.22;object-fit:cover}.water-value{font-size:87px;font-weight:300;line-height:1;letter-spacing:-.07em;margin-top:34px!important;color:#d2dbca}.water-value>span{font-size:.65em}.water-value small{font-size:9px;display:block;font-weight:400;letter-spacing:.09em;color:#6e7e65;margin-top:16px}.protection .metrics{margin-top:78px}.protection-details{display:grid;grid-template-columns:repeat(4,1fr);gap:45px;margin-top:69px}.protection-details svg{height:64px;width:90px;fill:none;stroke:#838f79;stroke-width:1.4;margin-left:-12px;margin-bottom:18px}.protection-details h3{font-size:15px;margin-bottom:14px}.protection-details p{font-size:12px;color:#829178;line-height:2;max-width:235px}
/* 精工 */
.craft-cover{position:relative;height:80svh;min-height:530px;max-height:950px}.craft-cover .cover-gradient{background:linear-gradient(0deg,#080808 0,transparent 65%)}.craft-cover .cover-content{bottom:80px}.craft .metrics{margin-bottom:105px}.craft-split{grid-template-columns:.9fr 1.1fr}.craft-list{margin:27px 0}.craft-list p{color:#a0a396;font-size:12px;line-height:2.8}.craft-list span{color:#696d61;font-size:10px;margin-right:22px}.craft-detail img{aspect-ratio:1.2;object-fit:cover}
/* 包装、参数、购买 */
.paper-split{grid-template-columns:.9fr 1.1fr;gap:100px}.paper h2{font-size:clamp(35px,4vw,63px);letter-spacing:.04em;line-height:1.5;margin:20px 0 28px}.paper-tagline{font-size:17px;line-height:1.9;margin-top:28px!important;color:#3e4537!important;letter-spacing:.03em}.packaging-figure{padding:35px 65px;background:#eceee8}.packaging-figure img{max-height:380px;width:100%;object-fit:contain;mix-blend-mode:multiply}.packaging-figure figcaption{font-size:9px;text-align:center;color:#919689;letter-spacing:.1em;margin-top:18px}.paper .three{margin-top:84px;text-align:center}.spec{background:#e9ebe5}.spec-heading{margin-bottom:55px}.spec-heading h2{font-size:clamp(29px,3vw,45px);letter-spacing:.035em;margin-top:17px}.spec-heading h2 span{font-weight:300;color:#8a8e83}.spec-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:100px;align-items:start}.spec-product figure{margin-bottom:35px}.spec-product img{aspect-ratio:1.38;object-fit:cover}.spec-product figcaption{font-size:9px;letter-spacing:.05em;margin-top:15px;display:flex;justify-content:space-between;color:#6e7565}.spec-product figcaption span{font-size:9px;color:#989d91}.spec-product>p{font-size:27px;line-height:1.7;letter-spacing:.04em}.spec-product .line-button{margin-top:15px}.spec-table>div{display:grid;grid-template-columns:130px 1fr;padding:15px 0;border-bottom:1px solid #cdd1c5;gap:20px;line-height:1.7;font-size:12px}.spec-table>div:first-child{padding-top:0}.spec-table dt{color:#818875}.spec-table dd{color:#333c2d}.buy{padding-bottom:125px}.buy .chapter-heading h2{font-size:clamp(35px,4.2vw,64px);line-height:1.5}.buy-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:125px;align-items:center}.buy-product img{aspect-ratio:1.1;object-fit:cover}.buy-product figcaption{display:flex;justify-content:space-between;font-size:10px;letter-spacing:.08em;margin-top:19px;color:#555f4b}.buy-product figcaption>span{font-size:9px;letter-spacing:0;color:#8a9280}.buy-kicker{font-size:12px;letter-spacing:.1em;margin-bottom:35px;color:#758067}.field{margin-top:22px}.field label{display:block;font-size:11px;color:#737d67;letter-spacing:.08em;margin-bottom:13px}.field select{color:#828a77;opacity:1;-webkit-text-fill-color:#828a77;background:transparent;border:0;border-bottom:1px solid #bfc5b6;border-radius:0;width:100%;padding:0 28px 17px 0;font-size:13px}.fit-status{font-size:11px;color:#858c7d;display:flex;align-items:center;gap:8px;margin-top:30px}.fit-status span{width:5px;height:5px;border-radius:50%;background:#9ba38e}.purchase-button{margin-top:24px;background:#262b21;color:#d7dbc9;width:100%;display:flex;justify-content:space-between;padding:18px 24px;font-size:12px;letter-spacing:.05em;opacity:.65}.buy-form>.small-note{margin-top:10px;font-size:10px}.buy-note{margin-top:28px;font-size:11px;line-height:1.9;color:#828c75}.footer{padding:60px 0 25px}.footer-top{display:flex;justify-content:space-between;align-items:start;padding-bottom:54px}.footer-top p{font-size:15px;line-height:2;color:#969c8a}.back-top{font-size:11px;color:#959b8b}.back-top span{margin-left:22px}.footer-bottom{display:flex;justify-content:space-between;gap:20px;font-size:9px;color:#565e4c;letter-spacing:.05em}
/* 长页锚点直接定位，避免远距离滚动时错过目标章节 */
html{scroll-behavior:auto}
/* 防止产品图的固有宽度撑开参数与购买分栏 */
.spec-grid>*,.buy-grid>*{min-width:0}.spec-product img,.buy-product img{width:100%}
/* 动效与适配 */
.js-motion .reveal{opacity:0;transform:translateY(26px);transition:opacity .85s var(--ease),transform .85s var(--ease)}.js-motion .reveal.visible{opacity:1;transform:translateY(0)}
@media(min-width:1600px){.shell{width:calc(100% - 180px)}.section-pad{padding-block:130px}.cover-note{right:90px}.hero-content{padding-top:calc(50svh - 50px)}}
@media(max-width:1100px){.shell{width:calc(100% - 80px)}.desktop-nav{gap:24px}.split{gap:55px}.section-pad{padding-block:85px}.copy h3{font-size:34px}.copy>p:not(.eyebrow):not(.small-note):not(.water-value):not(.paper-tagline){font-size:13px}.fit-detail{gap:55px}.fit-intro{gap:65px}.spec-grid{gap:65px}.buy-grid{gap:65px}.paper-split{gap:55px}.model-layer span{width:130px;left:calc(100% + 12px);font-size:9px}.install-lens{width:155px;height:190px;left:6%}.install-filter{left:59%;height:158px}.install-visual[data-step="2"] .install-filter,.install-visual[data-step="3"] .install-filter{transform:translateX(-65px)}.install-visual[data-step="3"] .install-hood{transform:translateX(-120px)}.protection-details{gap:28px}}
@media(max-width:760px){:root{--nav-height:64px}html{scroll-padding-top:106px}.shell{width:calc(100% - 40px)}.main-nav{height:64px}.brand{gap:10px}.brand-cn{font-size:19px}.brand-divider{font-size:17px}.brand-en{font-size:16px}.desktop-nav{display:none}.mobile-actions{display:flex;align-items:center;gap:22px;font-size:11px}.menu-toggle{width:22px;height:26px;display:flex;flex-direction:column;justify-content:center;gap:6px;z-index:2}.menu-toggle>span{height:1px;background:#c6c9be;width:22px;transition:transform .25s}.menu-toggle[aria-expanded="true"]>span:first-child{transform:translateY(3.5px) rotate(45deg)}.menu-toggle[aria-expanded="true"]>span:last-child{transform:translateY(-3.5px) rotate(-45deg)}.sub-nav>div{gap:19px;font-size:9px}.sub-name{font-size:12px}.sub-name span{display:none}.sub-nav>div>a:last-child{display:none}.site-header.scrolled .sub-nav{height:39px}.mobile-menu{position:absolute;top:64px;width:100%;padding:25px 28px 35px;background:#080808;display:flex;flex-direction:column;max-height:calc(100svh - 64px);overflow:auto;opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .25s,transform .25s,visibility .25s}.mobile-menu.open{opacity:1;visibility:visible;transform:translateY(0)}.mobile-menu>a{font-size:18px;padding:14px 0;display:flex;justify-content:space-between}.mobile-menu small,.mobile-menu a>span{font-size:10px;color:#8a9180}.menu-open .sub-nav{height:0!important;opacity:0}.hero{min-height:690px;max-height:none;height:100svh}.hero-image{height:65%;object-position:65% center;top:35px;object-fit:cover}.hero-shade{background:linear-gradient(0deg,#070708 25%,#070708e8 37%,transparent 60%)}.hero-content{padding-top:calc(100svh - 340px)}.hero-content .eyebrow{font-size:9px;letter-spacing:.13em}.hero h1{font-size:53px;letter-spacing:.09em;margin:15px 0 12px}.hero h2{font-size:14px;letter-spacing:.1em}.hero-intro{font-size:11px;margin-top:14px}.hero-buttons{gap:23px;margin-top:23px}.outline-button{padding:12px 15px;min-width:139px;font-size:11px}.text-button{font-size:11px}.hero-bottom{bottom:16px;font-size:7px;letter-spacing:.08em}.hero-bottom>a{display:none}.hero-bottom .image-note{font-size:8px}.section-pad{padding-block:70px}.overview{min-height:0}.overview>.shell{display:block}.intro-heading h2{font-size:33px;margin-top:17px}.intro-body{padding-top:27px;font-size:12px;line-height:2.1}.features{display:grid;grid-template-columns:1fr 1fr;gap:38px 24px;margin-top:55px}.features h3{font-size:23px;margin-top:15px}.features p{font-size:10px;margin-top:16px}.feature-number{font-size:9px}.eyebrow{font-size:9px;letter-spacing:.14em}.chapter-cover{height:72svh;min-height:490px}.cover-content{bottom:60px}.chapter-heading h2,.cover-content h2{font-size:34px;margin-top:16px}.cover-content>p:last-child{font-size:12px;margin-top:15px}.cover-note{right:20px;bottom:19px;font-size:8px}.chapter-heading{margin-bottom:42px;text-align:left}.chapter-heading>p:last-child{font-size:12px;margin-top:13px}.metrics{grid-template-columns:1fr 1fr;gap:35px 23px}.metrics strong{font-size:43px}.metrics strong.words{font-size:22px;line-height:1.15}.metrics p{font-size:10px;margin-top:13px}.split,.split.reverse{display:flex;flex-direction:column;align-items:stretch;gap:33px}.split.reverse .media,.split.reverse .copy{order:initial}.copy h3{font-size:29px;line-height:1.6;margin-bottom:20px}.copy>p:not(.eyebrow):not(.small-note):not(.water-value):not(.paper-tagline){font-size:12px;line-height:2.1;max-width:none}.copy .eyebrow{margin-bottom:16px}.small-note{font-size:10px}.media figcaption{font-size:9px;margin-top:13px;gap:10px}.media figcaption span{font-size:8px}.optical-body .metrics{margin-bottom:50px}.optical-detail{min-height:0}.optical-detail .media img{min-height:0;aspect-ratio:1.35;object-fit:cover}.micro-point{margin-top:24px}.micro-point>span{font-size:10px}.micro-point p{font-size:11px}.scene-strip{height:45svh;min-height:320px}.scene-caption{bottom:23px;display:block}.scene-caption>p{font-size:23px}.scene-caption>span{display:block;margin-top:22px;font-size:8px}.color-photo img{aspect-ratio:1.15}.light .metrics{margin-top:45px}.floating-split{margin-top:60px;gap:20px}.floating-split .copy{order:2}.floating-model{height:330px;order:1}.model-layer{width:56%;left:5%;height:85px;top:103px}.model-layer span{font-size:9px;width:140px;left:calc(100% + 17px)}.model-frame{border-width:12px;border-top-width:9px}.model-orbit{width:63%;height:104px;left:2%;top:246px}.model-buffer{border-width:5px}.floating-model.expanded .model-glass{transform:translateY(-63px)}.floating-model.expanded .model-buffer{transform:translateY(23px)}.floating-model.expanded .model-frame{transform:translateY(106px)}.fit-intro{margin-bottom:40px;gap:27px}.fit-statement{font-size:21px;line-height:1.7}.fit .metrics{margin-bottom:10px}.fit-detail{padding-top:37px;padding-bottom:27px;min-height:0;gap:25px}.cap-diagram svg{margin-bottom:18px}.detail-index{font-size:9px;margin-bottom:15px}.fit .copy h3{font-size:28px}.wide-view img{aspect-ratio:1.23}.install-visual{height:295px}.install-lens{top:60px;left:6%;height:172px;width:146px}.install-axis{top:145px}.install-filter{top:74px;left:61%;height:142px;width:60px}.install-hood{top:54px;height:187px;width:105px}.install-visual[data-step="2"] .install-filter,.install-visual[data-step="3"] .install-filter{transform:translateX(-64px)}.install-visual[data-step="3"] .install-hood{transform:translateX(-132px)}.install-steps{margin-top:22px}.install-steps button{padding-block:12px;font-size:11px}.water-photo img{aspect-ratio:1.25}.water-value{font-size:65px}.water-value small{font-size:8px}.protection .metrics{margin-top:42px}.protection-details{grid-template-columns:1fr 1fr;gap:33px 25px;margin-top:47px}.protection-details h3{font-size:13px}.protection-details p{font-size:10px;line-height:2}.protection-details svg{height:50px;margin-bottom:11px}.craft-cover{height:68svh;min-height:430px}.craft-cover img{object-position:center}.craft-cover .cover-content{bottom:65px}.craft .metrics{margin-bottom:48px}.craft-split .media{order:1}.craft-split .copy{order:2}.craft-detail img{aspect-ratio:1.25}.craft-list p{font-size:11px;line-height:2.6}.craft-list span{font-size:9px}.paper-split .copy{order:2}.paper-split .packaging-figure{order:1}.paper h2{font-size:33px;margin-top:17px;margin-bottom:22px}.packaging-figure{padding:35px}.packaging-figure img{max-height:270px}.packaging-figure figcaption{font-size:8px}.paper-tagline{font-size:16px}.paper .three{margin-top:44px;grid-template-columns:1fr;gap:27px;text-align:left}.paper .three .words{font-size:24px}.paper .three p{margin-top:8px}.spec-heading{margin-bottom:35px}.spec-heading h2{font-size:28px}.spec-grid{display:flex;flex-direction:column;gap:37px}.spec-product figure{margin-bottom:22px}.spec-product img{aspect-ratio:1.4}.spec-product>p{font-size:23px}.spec-table{width:100%}.spec-table>div{grid-template-columns:100px 1fr;gap:12px;font-size:10px;padding:13px 0}.buy .chapter-heading h2{font-size:33px;line-height:1.55}.buy-grid{display:flex;flex-direction:column;gap:37px}.buy-product img{aspect-ratio:1.4}.buy-product figcaption{font-size:9px}.buy-product figcaption span{font-size:8px}.buy-form{width:100%}.buy-kicker{font-size:11px;margin-bottom:28px}.buy{padding-bottom:75px}.footer{padding-top:40px}.footer-top{display:grid;grid-template-columns:1fr auto;gap:30px 0;padding-bottom:37px}.footer-top .brand{grid-column:1/-1}.footer-top p{font-size:12px;line-height:1.9}.back-top{font-size:10px;align-self:end}.back-top span{margin-left:10px}.footer-bottom{flex-direction:column;gap:12px;font-size:8px}.footer-bottom>span:nth-child(2){display:none}.js-motion .reveal{transform:translateY(17px)}}
@media(max-width:760px){.model-layer span{width:100px}.paper-split{gap:18px}.paper-split .copy{display:contents}.paper-split .copy>p:not(.eyebrow){order:2}.paper-split .copy .eyebrow{margin:0}.paper-split h2{margin:0 0 10px}.paper-split .packaging-figure{margin-bottom:13px}.paper-split .paper-tagline{margin-top:7px!important}}
/* 实物参考产品图与原生系统展示 */
.model-frame{border-color:#242424;border-top-color:#444;box-shadow:0 3px 0 var(--orange),0 7px 0 #222}.install-filter{border-color:#292929;border-left-color:var(--orange)}::selection{background:var(--orange);color:white}
.native-system{margin:58px 0 22px}.native-system img{width:100%;height:520px;object-fit:contain;object-position:center;background:#111}.native-system figcaption{display:flex;justify-content:space-between;gap:20px;font-size:9px;color:#8d9486;letter-spacing:.05em;margin-top:17px}.color-photo img{background:#fff;object-fit:contain;aspect-ratio:1.2}.spec-product img{background:#fff;object-fit:contain}.craft-detail img{object-position:center}.hero-image{object-position:center}
@media(max-width:760px){.native-system{margin-top:40px;margin-bottom:8px}.native-system img{height:auto;aspect-ratio:16/10;object-position:center}.native-system figcaption{font-size:8px;flex-direction:column;gap:8px;margin-top:13px}.hero-image{object-position:72% center}.color-photo img{aspect-ratio:1.15}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}.js-motion .reveal{opacity:1;transform:none}}

/* 20261020 实拍参考宣传图适配 */
.optical-detail .media img{aspect-ratio:3/2;min-height:0;object-fit:contain;background:#111}
.native-system img{height:auto;aspect-ratio:16/9;object-fit:contain;background:#111}
.cap-photo img{aspect-ratio:4/3;object-fit:cover;object-position:center 20%;background:#f2f2f2}
.cap-photo figcaption{line-height:1.7}
.buy-product img{aspect-ratio:3/2;object-fit:contain;background:#111}
.craft-cover img{object-position:center 48%}
.craft-detail img{aspect-ratio:3/2;object-fit:contain;background:#e9e7e4}
.spec-product img{aspect-ratio:1/1;object-fit:contain}
.hero-content{max-width:1440px}
@media(max-width:760px){
 .hero-image{object-position:77% center}
 .native-system img{aspect-ratio:16/10;object-fit:contain}
 .optical-detail .media img,.craft-detail img,.buy-product img{aspect-ratio:3/2;object-fit:contain}
 .cap-photo img{aspect-ratio:4/3;object-position:center 15%}
 .cap-photo figcaption{align-items:flex-start}
 .craft-cover img{object-position:64% center}
 .spec-product img{aspect-ratio:1/1}
}

/* 20261020 移动端独立首屏与结构图标签 */
.hero-picture{display:contents}
@media(min-width:761px){.hero-image{object-fit:contain;object-position:center;background:#070708}}
@media(min-width:761px) and (max-width:1100px){.floating-model .model-layer{left:3%;width:58%}.model-layer span{left:calc(100% + 12px);width:100px;font-size:9px}}
@media(max-width:760px){.hero{min-height:800px}.hero-image{top:0;height:100%;object-fit:contain;object-position:center top}.hero-content{padding-top:max(450px,calc(100svh - 340px))}}

/* v1.0.9: vector arrows, no platform emoji glyphs. */
.external-arrow{display:inline-block;width:1em;height:1em;min-width:1em;overflow:visible;vertical-align:-.12em;fill:none;stroke:currentColor;stroke-width:1.35;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.external-arrow-css{display:inline-block!important;position:relative;width:12px;height:12px;min-width:12px;border-top:1px solid currentColor;border-right:1px solid currentColor}
.external-arrow-css:after{content:"";position:absolute;width:15px;height:1px;right:-1px;top:-1px;background:currentColor;transform:rotate(-45deg);transform-origin:right center}

/* Packaging copy: preserve the three desktop columns and a separate slogan. */
.paper h2{text-wrap:balance}
html:is(:lang(zh-CN),:lang(zh-TW)) .paper h2{word-break:keep-all;overflow-wrap:normal}
.paper .metrics.three>div{min-width:0}
html:is(:lang(zh-CN),:lang(zh-TW)) .paper-tagline{font-size:clamp(14px,4.3vw,17px);white-space:nowrap;letter-spacing:0}

/* 样式/服务页面.css */
.service-page{background:#fff;color:#171918;font-family:"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif}
.service-header{height:72px;background:#050505;color:#eee;display:flex;align-items:center;justify-content:space-between;padding:0 40px}
.service-logo{display:block;width:180px;height:32px;overflow:hidden}
.service-logo img{width:180px;height:32px;object-fit:cover;object-position:50% 53%;filter:brightness(0) invert(1)}
.service-header nav{display:flex;gap:32px;align-items:center;font-size:12px}
.service-header nav a{padding:10px 0;color:#aaa}
.service-header nav a[aria-current],.service-header nav a:hover{color:white}
.service-shell{width:calc(100% - 128px);max-width:1200px;margin:auto}
.purchase-main{background:#f4f4f3;padding:76px 0 90px}
.purchase-main h1,.purchase-channels>div>h2{font-size:32px;font-weight:400;letter-spacing:.12em;text-align:center;line-height:1.5}
.wechat-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:78px;align-items:center;margin-top:60px}
.wechat-code{width:100%;max-width:450px;aspect-ratio:1;background:#eaeae8;display:grid;place-items:center;justify-self:center}
.wechat-code img{width:82%;height:82%;object-fit:contain}
.qr-placeholder{text-align:center;color:#797c76;letter-spacing:.08em}
.qr-monogram{display:block;color:#222;font-size:92px;font-weight:300;line-height:1.2;letter-spacing:-.08em;margin-bottom:25px}
.qr-placeholder p{font-size:16px}.qr-placeholder small{display:block;font-size:12px;margin-top:12px}
.wechat-copy h2{font-size:33px;font-weight:400;line-height:1.65;letter-spacing:.04em;margin-bottom:25px}
.wechat-copy>p,.wechat-copy li{font-size:14px;line-height:2.1;color:#62665f}
.wechat-copy ol{margin:28px 0;padding-left:20px}
.service-text-link{display:inline-flex;gap:28px;border-bottom:1px solid #767a71;padding:10px 0;font-size:12px;color:#292e26}
.purchase-channels{padding:82px 0 100px}
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px;margin-top:58px}
.channel-grid article{text-align:center;min-width:0}
.channel-grid img{width:100%;aspect-ratio:1;object-fit:cover;background:#eee}
.channel-grid article:first-child img{object-fit:contain}
.channel-grid h3{font-size:22px;font-weight:400;letter-spacing:.07em;margin:24px 0 14px}
.channel-grid p{font-size:12px;color:#81857c;line-height:1.9;min-height:45px}
.service-outline{border:1px solid #9b9e95;display:inline-flex;justify-content:center;align-items:center;padding:12px 18px;font-size:12px;line-height:1.5;margin-top:25px;background:transparent;color:#20251c}
.service-outline[aria-disabled=true]{color:#91958d;border-color:#c4c7bd;cursor:default}
.service-footer{padding:32px 40px;background:#050505;color:#858a7d;display:flex;justify-content:space-between;gap:25px;font-size:10px}
.auth-section{padding:94px 0 110px;background:linear-gradient(180deg,#f4f4f1,#fff);min-height:calc(100svh - 150px)}
.auth-shell{width:calc(100% - 48px);max-width:760px;margin:auto;text-align:center}
.service-eyebrow{font-size:10px;letter-spacing:.18em;color:#8a8e84}
.auth-shell h1{font-size:44px;font-weight:400;line-height:1.5;letter-spacing:.1em;margin-top:20px}
.auth-lead{font-size:17px;line-height:1.9;color:#777c71;margin-top:24px}
.auth-form-wrap{text-align:left;margin-top:56px}
.service-status{font-size:11px;color:#7f8576;letter-spacing:.05em;margin-bottom:22px}
.service-status:before{content:"";display:inline-block;width:5px;height:5px;background:#909783;border-radius:50%;margin-right:9px;vertical-align:middle}
.auth-form-wrap label{display:block;font-size:13px;color:#656c5d;margin-bottom:14px}
.auth-input-row{display:flex;border-bottom:1px solid #7c8470;gap:15px}
.auth-input-row input{min-width:0;flex:1;border:0;background:transparent;padding:17px 0;font:inherit;font-size:17px;letter-spacing:.04em;color:#262e1c;border-radius:0}
.auth-input-row input::placeholder{font-size:14px;color:#9cA292;letter-spacing:0}
.auth-input-row button{white-space:nowrap;background:#20271b;color:#fff;font-size:12px;display:flex;gap:25px;align-items:center;padding:0 24px;margin:0 0 12px}
.auth-input-row button:disabled{opacity:.6;cursor:wait}
.auth-help{font-size:10px;line-height:1.9;color:#8c9380;margin-top:14px}
.auth-result{margin-top:25px;padding:21px 24px;background:#e9ece3;border-left:2px solid #8c987a;color:#515c42;font-size:13px;line-height:1.9}
.auth-result[data-tone=error]{background:#f0e9e3;color:#7b5137;border-color:#a87b5c}
.auth-result strong{display:block;font-weight:500;margin-bottom:5px}
.auth-guidance{border-top:1px solid #e0e3d9;padding-top:34px;margin-top:64px;text-align:left}
.auth-guidance h2{font-size:17px;font-weight:400;margin-bottom:16px}
.auth-guidance p{font-size:12px;color:#8a9180;line-height:2}
.auth-guidance .service-text-link{margin-top:13px}
@media(max-width:760px){
 .service-header{height:64px;padding:0 20px}.service-logo,.service-logo img{width:145px;height:28px}.service-header nav{font-size:10px;gap:18px}
 .service-shell{width:calc(100% - 40px)}.purchase-main{padding:46px 0 55px}.purchase-main h1,.purchase-channels>div>h2{font-size:24px;letter-spacing:.05em}
 .wechat-grid{grid-template-columns:1fr;gap:35px;margin-top:35px}.wechat-code{max-width:320px}.wechat-copy h2{font-size:27px;line-height:1.6}.wechat-copy>p,.wechat-copy li{font-size:12px}
 .purchase-channels{padding:50px 0 65px}.channel-grid{grid-template-columns:1fr;gap:50px;margin-top:35px}.channel-grid img{max-height:380px}.channel-grid h3{font-size:22px}.channel-grid p{min-height:0}.channel-grid .service-outline{margin-top:20px}
 .service-footer{padding:27px 20px;flex-direction:column;gap:16px;font-size:9px}.auth-section{padding:57px 0 65px}.auth-shell h1{font-size:32px}.auth-lead{font-size:15px}.auth-form-wrap{margin-top:40px}.auth-input-row{gap:10px}.auth-input-row input{font-size:15px}.auth-input-row input::placeholder{font-size:12px}.auth-input-row button{gap:13px;padding:0 15px;font-size:11px}.auth-guidance{margin-top:45px}.auth-result{padding:17px 19px;font-size:12px}
}
@media(max-width:360px){.service-header nav{gap:12px}.service-logo,.service-logo img{width:128px}}

/* Intrinsic image height avoids pale side gutters on narrow screens. */
@media(max-width:760px){.channel-grid img{height:auto;max-height:none;aspect-ratio:auto;object-fit:contain;background:transparent}}
.verification-details{margin:23px 0 0}.verification-details>div{display:grid;grid-template-columns:90px 1fr;gap:15px;border-top:1px solid #d7dfca;padding:13px 0}.verification-details dt{font-size:11px;color:#819071}.verification-details dd{font-size:13px;overflow-wrap:anywhere;color:#3e5134}.verification-history{font-size:10px;color:#879779;margin-top:15px!important;line-height:1.9}.official-store-links{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.official-store-links .service-outline{margin-top:15px}
@media(max-width:760px){.verification-details>div{grid-template-columns:75px 1fr;gap:10px}.verification-details dd{font-size:12px}}

.purchase-image-link{display:block;width:100%;color:inherit;text-decoration:none}.purchase-image-link>img{display:block;width:100%;height:auto}.regional-entry-link{margin-top:24px;width:fit-content}

.wechat-copy{min-width:0}
.purchase-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px 26px;margin-top:34px}
.purchase-actions>a{margin:0;min-height:44px;box-sizing:border-box;max-width:100%;text-align:center}
.purchase-actions .regional-entry-link{background:#242a20;color:#fff;border-color:#242a20;padding:12px 22px;line-height:1.6}
.purchase-actions .service-text-link{align-items:center;line-height:1.6}
.purchase-actions .service-text-link span{flex-shrink:0}
@media(max-width:760px){.purchase-actions{gap:14px 24px;margin-top:28px}.purchase-actions .regional-entry-link{width:100%;min-height:48px}.purchase-actions .service-text-link{min-height:44px}}

/* 样式/品牌与素材.css */
/* 用户提供的方形黑底Logo，完整显示 */
.genzo-brand.brand-square,.service-logo.brand-square{display:block;width:52px;height:52px;overflow:hidden}
.genzo-brand.brand-square img,.service-logo.brand-square img{display:block;width:52px;height:52px;max-width:100%;object-fit:contain;object-position:center;filter:none}
.footer .brand-square,.footer .brand-square img{width:64px;height:64px}
.qr-placeholder .qr-brand-logo{display:block;width:116px;height:116px;margin:0 auto 23px;object-fit:contain}
.water-photo img{aspect-ratio:5056/3392;object-fit:contain;object-position:center}
.comparison-pair .comparison-photo{display:block;width:100%;height:auto;object-fit:contain}
@media(max-width:760px){.genzo-brand.brand-square,.service-logo.brand-square,.genzo-brand.brand-square img,.service-logo.brand-square img{width:48px;height:48px}.footer .brand-square,.footer .brand-square img{width:60px;height:60px}}

/* 样式/网站备案.css */
.site-registration{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:12px 28px;padding:19px 24px 24px;background:#080808;color:#999b94;border-top:1px solid #232620;font:11px/1.8 "Segoe UI","Microsoft YaHei",sans-serif;text-align:center}
.site-registration a{display:inline-flex;align-items:center;justify-content:center;gap:7px;color:inherit;text-decoration:none;font-size:inherit;white-space:nowrap}
.site-registration a:hover{color:#eee}
.site-registration a:focus-visible{outline:1px solid #ccc;outline-offset:5px}
.site-registration img{display:block;width:20px;height:20px;object-fit:contain;flex:none}
@media(max-width:600px){.site-registration{flex-direction:column;gap:10px;padding:18px 20px 22px;font-size:10px}}

/* 样式/保修页面.css */
.warranty-subnav{background:#252a2b;color:#f1f2ed;padding:24px 40px;font-size:14px;letter-spacing:.07em}
.warranty-main{max-width:960px;width:calc(100% - 80px);margin:0 auto;padding:68px 0 110px;min-height:75vh}
.warranty-heading{text-align:center;margin-bottom:45px}.warranty-heading h1{font-size:38px;font-weight:400;letter-spacing:.1em;line-height:1.5}.warranty-heading p{margin-top:18px;font-size:15px;color:#787e74;line-height:1.9}
.warranty-tabs{display:flex;justify-content:center;gap:48px;margin:0 0 42px;border-bottom:1px solid #e4e6df}
.warranty-tabs button{font:inherit;font-size:20px;color:#8b9088;padding:0 0 16px;border-bottom:2px solid transparent;cursor:pointer;line-height:1.6}
.warranty-tabs button[aria-selected=true]{color:#242a22;border-color:#242a22}
.warranty-panel[hidden]{display:none}.warranty-panel{font-size:16px;line-height:2;color:#454b43;overflow-wrap:anywhere}
.warranty-panel>p{margin-bottom:24px}.warranty-panel h2{color:#242a22;font-size:24px;font-weight:500;line-height:1.65;margin:44px 0 20px}.warranty-panel h3{font-size:17px;font-weight:500;margin:25px 0 9px;color:#363d31}
.warranty-panel ul,.warranty-panel ol{padding-left:24px;margin:15px 0 26px}.warranty-panel li{padding-left:5px;margin:8px 0}
.warranty-key{border-left:2px solid #8f9a7d;padding:18px 25px;background:#f2f3ee;margin-bottom:32px}.warranty-key strong{font-weight:500;color:#252c20}
.warranty-table-wrap{overflow-x:auto}.warranty-table{width:100%;border-collapse:collapse;text-align:left;font-size:14px;line-height:1.8}.warranty-table th,.warranty-table td{padding:18px 16px;border-bottom:1px solid #d8ded0;vertical-align:top}.warranty-table th{font-weight:500;background:#f1f2ec;color:#515c45}.warranty-table td{min-width:95px}.warranty-table td:first-child{min-width:170px}
.warranty-note{font-size:12px;color:#808776;margin-top:26px}.warranty-note a{color:inherit;text-decoration:underline;text-underline-offset:3px}
@media(max-width:760px){.warranty-subnav{padding:19px 20px;font-size:12px}.warranty-main{width:calc(100% - 40px);padding:42px 0 65px}.warranty-heading{margin-bottom:30px}.warranty-heading h1{font-size:29px}.warranty-heading p{font-size:13px}.warranty-tabs{gap:25px;margin-bottom:30px}.warranty-tabs button{font-size:16px}.warranty-panel{font-size:14px;line-height:1.95}.warranty-panel h2{font-size:20px;margin-top:35px}.warranty-panel h3{font-size:16px}.warranty-key{padding:16px 18px}.warranty-table{font-size:12px}.warranty-table th,.warranty-table td{padding:13px 12px}.warranty-page .service-header,.authenticity-page .service-header{height:auto;min-height:64px;flex-wrap:wrap;gap:12px;padding-top:16px;padding-bottom:12px}.warranty-page .service-header nav,.authenticity-page .service-header nav{gap:17px;font-size:10px}}
@media(max-width:380px){.warranty-page .service-header nav,.authenticity-page .service-header nav{width:100%;justify-content:flex-end;gap:22px}}
.warranty-main{max-width:920px;padding-top:64px;padding-bottom:120px}
.warranty-page .visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.warranty-tabs{gap:52px;margin-bottom:36px}
.warranty-tabs button{font-size:22px;padding-bottom:13px}
.warranty-panel{font-size:17px;line-height:1.9;color:#353b34}
.warranty-panel h2{font-size:25px;font-weight:600;margin:48px 0 22px}
.warranty-panel .policy-numbered{padding-left:25px;margin:0 0 28px}
.warranty-panel .policy-numbered>li{padding-left:2px;margin:0 0 20px}
.warranty-panel .policy-letters{list-style-type:lower-alpha;padding-left:25px;margin:12px 0 18px}
.warranty-panel .policy-letters>li{padding-left:3px;margin:5px 0}
@media(max-width:760px){.warranty-main{padding-top:38px;padding-bottom:70px}.warranty-tabs{gap:28px;margin-bottom:30px}.warranty-tabs button{font-size:17px}.warranty-panel{font-size:14px;line-height:1.95}.warranty-panel h2{font-size:21px;margin:37px 0 18px}.warranty-panel .policy-numbered{padding-left:22px}.warranty-panel .policy-letters{padding-left:22px}}

.regional-rights{border-block:1px solid #dce0d5;margin:28px 0;padding:20px 0}.regional-rights p{margin:0}.warranty-panel li{overflow-wrap:break-word;hyphens:auto}
@media(max-width:600px){.warranty-tabs{gap:16px}.warranty-tabs button{font-size:clamp(14px,4.1vw,17px)}}

/* 样式/地区与语言.css */
.region-footer{background:#0b0c0b;color:#d9dbd5;border-top:1px solid #242623;padding:38px 64px 26px;font:13px/1.7 RadiantSans,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif}
.region-footer-inner{width:100%;max-width:1440px;margin-inline:auto}
.region-footer-main{display:grid;grid-template-columns:minmax(280px,1fr) minmax(0,1fr);gap:32px 64px;align-items:end}
.region-field{min-width:0;max-width:420px}.region-field>label{display:block;font-size:11px;letter-spacing:.08em;color:#a5a99f;margin:0 0 12px}
.region-controls{display:flex;align-items:stretch;gap:12px}.region-select-wrap{position:relative;flex:1;min-width:0}.region-select-wrap:after{content:"";position:absolute;right:18px;top:19px;width:6px;height:6px;border-right:1px solid #a6ab9f;border-bottom:1px solid #a6ab9f;transform:rotate(45deg);pointer-events:none}
.region-footer select{display:block;appearance:none;-webkit-appearance:none;width:100%;height:46px;border:1px solid #41463c;border-radius:0;padding:10px 42px 10px 15px;background:#141613;color:#e1e4dc;color-scheme:dark;font:inherit;cursor:pointer;text-overflow:ellipsis;transition:border-color .18s}.region-footer select:hover{border-color:#858c7b}.region-footer option{background:#141613;color:#e1e4dc}
.region-footer button{font:inherit;cursor:pointer;border-radius:0}.region-footer .region-apply{flex:0 0 auto;min-width:76px;max-width:50%;min-height:46px;padding:10px 20px;border:1px solid #d9ddd2;background:#d9ddd2;color:#1c2118;line-height:1.5;transition:background .18s,border-color .18s}.region-footer .region-apply:hover{background:#f3f4ef;border-color:#f3f4ef}
.region-service{justify-self:end;max-width:400px;text-align:right}.region-footer .region-preferences{display:inline-block;border:0;border-bottom:1px solid #6a7160;padding:3px 0 8px;background:transparent;color:#d9dbd5;line-height:1.5;transition:color .18s,border-color .18s}.region-footer .region-preferences:hover{color:#fff;border-color:#d9dbd5}
.region-footer .privacy-footer-note{margin:14px 0 0;font-size:11px;color:#9da394;line-height:1.9;overflow-wrap:anywhere}.region-footer a{color:inherit;text-decoration:none}.region-footer .privacy-footer-note a{color:#c2c8b8;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}.region-footer a:hover{color:#fff}
.region-footer-meta{display:flex;justify-content:space-between;align-items:baseline;gap:10px 24px;margin-top:24px;font-size:10px;color:#969d8c;line-height:1.8}.region-footer-meta p{margin:0}.region-footer-meta a{flex-shrink:0;white-space:nowrap}
.region-footer :is(a,button,select):focus-visible{outline:1px solid #d5dbcb;outline-offset:5px}.region-footer :is(button,select):disabled{opacity:.5;cursor:wait}
.site-registration{background:#0b0c0b;border-top-color:#242623;color:#969d8c;padding:20px 24px 24px;font-size:10px}
.analytics-choice{max-width:530px;width:calc(100% - 40px);padding:28px;border:1px solid #aaa;border-radius:8px;background:#f6f6f2;color:#20251c;font:15px/1.8 Arial,sans-serif;position:fixed}.analytics-choice::backdrop{background:#0006}.analytics-choice h2{font-size:24px;margin:0 0 15px}.analytics-choice button{background:transparent;border:1px solid #9b9e93;padding:9px 16px;border-radius:4px;color:inherit;cursor:pointer;margin:12px 12px 0 0}.analytics-choice button:last-child{background:#252b20;color:#fff}
.analytics-choice .privacy-close{position:absolute;right:12px;top:8px;border:0;background:transparent;color:inherit;margin:0;padding:4px 10px;font-size:24px}.privacy-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.analytics-choice .privacy-actions button{margin:0;background:transparent;color:#252b20;min-height:44px;flex:1;white-space:nowrap}.analytics-choice .privacy-actions [data-choice=basic]{background:#252b20;color:#fff}.analytics-choice button:disabled{opacity:.45;cursor:default}
.fit-price{font-size:15px;line-height:1.5;margin-top:12px;color:inherit}html:lang(en) .opening-intro h2,html:lang(ja) .opening-intro h2{font-family:Arial,sans-serif;letter-spacing:.04em}html:lang(en) .copy h3,html:lang(ja) .copy h3{overflow-wrap:normal}html:lang(en) .opening-features p{line-height:1.6}html:lang(ja){font-family:"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif}
@media(max-width:760px){.region-footer{padding:30px 22px 24px;font-size:12px}.region-footer-main{grid-template-columns:1fr;gap:26px}.region-field{max-width:none}.region-field>label{margin-bottom:10px}.region-controls{gap:10px}.region-footer .region-apply{padding-inline:18px}.region-service{justify-self:stretch;text-align:left;max-width:none;border-top:1px solid #292d25;padding-top:23px}.region-footer .privacy-footer-note{margin-top:12px;font-size:11px}.region-footer-meta{flex-direction:column;gap:8px;margin-top:22px}.site-registration{padding:19px 22px 23px;gap:8px;font-size:10px}.analytics-choice{padding:22px}.opening-features p{overflow-wrap:normal}}
@media(prefers-reduced-motion:reduce){.region-footer *{transition:none!important}}

/* 样式/国际排版.css */
/* Localised typography follows each language's reading rhythm. */
html:lang(en) .opening-intro h2{font-family:inherit;font-weight:300;letter-spacing:.025em;text-indent:0;line-height:1.35}
html:lang(en) :is(.chapter-heading h2,.copy h3,.paper h2,.spec-product>p){letter-spacing:-.018em;line-height:1.3;text-wrap:balance}
html:lang(en) .opening-intro>p{max-width:760px;line-height:1.95;text-wrap:pretty}
html:lang(en) .opening-features p{max-width:250px;margin-inline:auto;line-height:1.75}
html:lang(en) :is(.wechat-copy h2,.purchase-main h1,.purchase-channels h2,.auth-shell h1){letter-spacing:-.012em;line-height:1.4;text-wrap:balance}

html:lang(ja) body{font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif}
html:lang(ja) :is(.opening-intro h2,.chapter-heading h2,.copy h3,.paper h2){font-family:inherit;letter-spacing:.025em;line-height:1.6;text-wrap:balance;line-break:strict}
html:lang(ja) .opening-intro h2{letter-spacing:.035em;text-indent:0;white-space:normal}
html:lang(ja) :is(.opening-intro>p,.copy>p,.wechat-copy>p){line-height:2.05;line-break:strict;overflow-wrap:anywhere}
html:lang(zh-TW) body{font-family:RadiantSans,"PingFang TC","Microsoft JhengHei",sans-serif}
html:lang(zh-TW) .opening-intro h2{font-family:inherit;font-weight:300}
html:not(:lang(zh-CN)) :is(.opening-actions,.service-header nav,.service-nav,.opening-features,.spec-table){min-width:0}
html:not(:lang(zh-CN)) :is(.spec-table dd,.fit-product-line,.verification-details dd){overflow-wrap:anywhere}
@media(max-width:760px){html:lang(en) .opening-intro>p{line-height:1.9}html:lang(en) .service-header nav{gap:18px}html:not(:lang(zh-CN)) .auth-input-row button{gap:12px;padding-inline:16px}html:not(:lang(zh-CN)) .service-footer{flex-wrap:wrap;line-height:1.8}}

html:lang(ja) .opening-intro h2 .heading-phrase{display:inline-block;white-space:nowrap}

html:is(:lang(de),:lang(fr)) .opening-intro h2{font-family:inherit;font-weight:300;letter-spacing:.02em;text-indent:0;line-height:1.4;text-wrap:balance}
html:is(:lang(de),:lang(fr)) :is(.chapter-heading h2,.copy h3,.paper h2,.wechat-copy h2,.chooser-heading h1){letter-spacing:0;line-height:1.35;text-wrap:balance;hyphens:auto;overflow-wrap:break-word}
html:is(:lang(de),:lang(fr)) :is(.opening-intro>p,.copy>p,.wechat-copy>p){line-height:1.95;text-wrap:pretty}
html:lang(ko) body{font-family:"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",sans-serif;word-break:keep-all;overflow-wrap:break-word}
html:lang(ko) .region-footer{font-family:inherit}
html:lang(ko) :is(.opening-intro h2,.chapter-heading h2,.copy h3,.paper h2,.wechat-copy h2){font-family:inherit;font-weight:300;letter-spacing:0;line-height:1.5;text-wrap:balance;word-break:keep-all}
html:is(:lang(de),:lang(fr),:lang(ko)) .opening-features p{line-height:1.8;max-width:260px;margin-inline:auto}
html:is(:lang(de),:lang(fr),:lang(ko)) :is(.copy,.buy-form,.opening-features>*,.metrics>*,.fit-sku-group){min-width:0}
html:is(:lang(de),:lang(fr),:lang(ko)) :is(.fit-product-line strong,.service-header nav a,.protection-details h3){overflow-wrap:break-word;hyphens:auto}
html:is(:lang(de),:lang(fr),:lang(ko)) .service-header nav{min-width:0;gap:24px;text-align:right}
html:is(:lang(de),:lang(fr),:lang(ko)) .service-footer{flex-wrap:wrap;line-height:1.8}
html:is(:lang(de),:lang(fr),:lang(ko)) .privacy-actions button{white-space:normal}
@media(max-width:760px){html:is(:lang(de),:lang(fr),:lang(ko)) .service-header{gap:18px}html:is(:lang(de),:lang(fr),:lang(ko)) .service-header .service-logo{flex-shrink:0}html:is(:lang(de),:lang(fr),:lang(ko)) .service-header nav{gap:14px;flex-wrap:wrap;justify-content:flex-end;line-height:1.5}html:is(:lang(de),:lang(fr),:lang(ko)) .service-header nav a{padding:0}html:is(:lang(de),:lang(fr),:lang(ko)) .auth-input-row{flex-wrap:wrap}html:is(:lang(de),:lang(fr),:lang(ko)) .auth-input-row input{flex-basis:100%}html:is(:lang(de),:lang(fr),:lang(ko)) .auth-input-row button{min-height:44px;padding:10px 16px;margin-bottom:14px;justify-content:space-between}html:is(:lang(de),:lang(fr),:lang(ko)) .opening-actions{flex-wrap:wrap}html:is(:lang(de),:lang(fr),:lang(ko)) .opening-actions a{min-width:0}}

html:is(:lang(de),:lang(fr),:lang(ko)) .service-header{height:auto;min-height:72px;padding-block:20px}
@media(max-width:760px){html:is(:lang(de),:lang(fr),:lang(ko)) .service-header{min-height:64px;padding-block:18px}}