/* 100% 结构复刻 novejewelry.com 的设计规范：黑白极简 · Montserrat 标题 · Open Sans 正文 · 每块 90px 留白 */
:root{--black:#1F2328;--white:#FBF9F5;--surface:#FFFFFF;--teal:#0F4C5C;--teal-dark:#0B3A47;--butter:#F5C542;--grey-cta:#0F4C5C;--grey-light:#FBEFEA;--grey-ultra:#EEF3F2;--grey-line:#E3DED6;--text:#1F2328;--muted:#5B6167;--max:1200px;--pad:90px;--radius:8px;
--h1:2.565rem;--h2:2.025rem;--h3:1.42rem;--body:1rem}
*{box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}
body{margin:0;font-family:"Open Sans",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--text);background:var(--white);line-height:calc(8px + 2ex)}
h1,h2,h3,h4{font-family:Montserrat,"Open Sans",sans-serif;font-weight:700;line-height:calc(6px + 2ex);margin:0 0 .6em;text-wrap:pretty}
h1{font-size:var(--h1)}h2{font-size:var(--h2)}h3{font-size:var(--h3)}h4{font-size:1.1rem}
p{margin:0 0 1em;max-width:70ch}a{color:inherit}
.container{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:var(--pad) 0}
.bg-light{background:var(--grey-light)}.bg-ultra{background:var(--grey-ultra)}.bg-cta{background:var(--teal);color:#fff}.bg-cta h2{color:#fff}.bg-cta p{color:#D7E6EA}
.btn{display:inline-block;background:var(--teal);color:#fff;padding:14px 26px;border-radius:var(--radius);text-decoration:none;font-weight:600;text-transform:capitalize;border:2px solid var(--teal);transition:background .15s,border-color .15s}.btn:hover{background:var(--teal-dark);border-color:var(--teal-dark)}
.btn.outline{background:transparent;color:var(--teal)}.btn.outline:hover{background:var(--teal);color:#fff}.bg-cta .btn{background:var(--butter);color:#1F2328;border-color:var(--butter)}.bg-cta .btn:hover{background:#E9B62E;border-color:#E9B62E}
.grid{display:grid;gap:28px}.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.g6{grid-template-columns:repeat(6,1fr)}
@media(max-width:900px){.g3,.g4,.g6{grid-template-columns:repeat(2,1fr)}.g2{grid-template-columns:1fr}section{padding:56px 0}}
.ph{background:repeating-linear-gradient(45deg,#DCE6E6 0 12px,#EDF3F2 12px 24px);border:1px dashed #9DB3B3;display:flex;align-items:center;justify-content:center;color:#666;font-size:.85rem;text-align:center;padding:12px;border-radius:var(--radius)}
.ph.r169{aspect-ratio:16/9}.ph.r43{aspect-ratio:4/3}.ph.r11{aspect-ratio:1/1}.ph.logo{width:150px;height:44px;padding:4px}
.card{border:1px solid var(--grey-line);border-radius:var(--radius);padding:24px;background:var(--surface)}
.card h3,.card h4{margin-top:14px}.more{font-weight:700;letter-spacing:.02em;text-decoration:none;font-size:.9rem;color:var(--teal)}
.badges{display:flex;gap:28px;flex-wrap:wrap;margin:22px 0 30px;font-weight:700;font-size:.95rem}.badges span::before{content:"●";margin-right:8px;color:var(--butter)}
header.site{position:sticky;top:0;background:var(--surface);border-bottom:1px solid var(--grey-line);z-index:10}
header.site .container{display:flex;align-items:center;justify-content:space-between;height:78px}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;gap:28px;align-items:center}nav.main li{position:relative}nav.main a{text-decoration:none;font-weight:600;font-size:.95rem}nav.main a:hover{color:var(--teal)}
nav.main li.has{padding:22px 0}nav.main li.has ul{display:none;position:absolute;top:100%;left:0;margin-top:-6px;background:var(--surface);border:1px solid var(--grey-line);min-width:240px;padding:10px 0;flex-direction:column;gap:0;border-radius:var(--radius);box-shadow:0 10px 30px rgba(0,0,0,.08);z-index:30}
@media(hover:hover){nav.main li.has:hover ul{display:flex}}nav.main li.has.open ul{display:flex}nav.main li.has.open>a{color:var(--teal)}nav.main li.has ul a{display:block;padding:9px 18px;font-weight:500}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}.hero .ph{min-height:420px}
.faq details{border-bottom:1px solid var(--grey-line);padding:16px 0}.faq summary{font-family:Montserrat;font-weight:700;cursor:pointer;font-size:1.05rem}.faq details[open] summary{color:var(--teal)}.faq p{margin-top:10px}
.numbers{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}.numbers b{display:block;font-family:Montserrat;font-size:2.4rem}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.steps .n{font-family:Montserrat;font-size:2.4rem;font-weight:700;color:var(--butter)}
form.quote{display:grid;gap:14px}form.quote label{display:grid;gap:6px;font-size:.9rem;font-weight:600}form.quote input,form.quote textarea,form.quote select{padding:12px;border:1px solid #cfcfcf;border-radius:6px;font:inherit}form.quote textarea{min-height:120px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
footer.site{background:#0B2F3A;color:#fff}footer.site a{color:#fff;text-decoration:none}footer.site .cols{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:32px;padding:var(--pad) 0 40px}footer.site h4{color:#fff}footer.site ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
footer.site .legal{border-top:1px solid #1E4A57;padding:20px 0;font-size:.85rem;color:#aaa;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.specialist{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}.specialist .card{color:#000}
.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:14px}
article.post h2{margin-top:2em}article.post{max-width:760px}
.toc{border:1px solid var(--grey-line);padding:18px 24px;border-radius:var(--radius);background:var(--surface);border-left:4px solid var(--butter)}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.78rem;font-weight:700;color:var(--teal);margin-bottom:10px}
.note{font-size:.8rem;color:#999}

.faq summary h3,.faq summary h4{display:inline;margin:0;font-size:1.05rem}h2.n{font-size:2.4rem;color:var(--butter)}

.popup{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;z-index:100}.popup.hide{display:none}.popup-box{background:var(--surface);color:var(--text);max-width:560px;width:92%;padding:32px;border-radius:10px;position:relative;max-height:90vh;overflow:auto}.popup-x{position:absolute;top:10px;right:14px;border:0;background:none;font-size:1.6rem;cursor:pointer}
.social{display:flex;gap:10px;margin-top:14px}.social .ph{width:36px;height:36px;padding:0;border-radius:50%}
.pager{display:flex;gap:8px;justify-content:center;margin-top:32px}.pager span{border:1px solid #ddd;padding:6px 12px;border-radius:6px}.pager .cur{background:var(--teal);color:#fff}
.container.three{display:grid;grid-template-columns:240px 1fr 280px;gap:36px;align-items:start}.container.two{display:grid;grid-template-columns:260px 1fr;gap:40px;align-items:start}.sticky{position:sticky;top:96px}
.help_faq{margin-bottom:36px}details.addr summary{cursor:pointer;font-size:.9rem;color:#555}
@media(max-width:900px){.container.three,.container.two{grid-template-columns:1fr}}

.breadcrumb ul{list-style:none;padding:0;margin:0;display:flex;gap:8px}.breadcrumb li+li::before{content:"›";margin-right:8px;color:#999}
.mobile-toggle{display:none;border:0;background:none;font-size:1.6rem;cursor:pointer}.mobile-menu{display:none}.mobile-menu.open{display:block;position:absolute;left:0;right:0;top:78px;background:var(--surface);border-bottom:1px solid #e5e5e5;padding:16px 24px}.mobile-menu ul{list-style:none;padding:0;margin:0}.mobile-menu li{padding:6px 0}.mobile-menu li ul{padding-left:14px}.mobile-menu a{text-decoration:none}
.contact-lines .ico{display:inline-block;width:20px}.share{display:flex;gap:8px;align-items:center;margin:16px 0}.share .ph{width:32px;height:32px;padding:0;border-radius:50%}.blog-cta{margin-top:12px}
@media(max-width:900px){nav.main{display:none}.mobile-toggle{display:block}}

.site-logo{text-decoration:none}.site-logo .ph.logo{width:170px;height:44px;font-size:.75rem}

.carousel{position:relative;overflow:hidden;touch-action:pan-y;cursor:grab;user-select:none;min-width:0;width:100%;max-width:100%}.grid>*{min-width:0}.carousel:active{cursor:grabbing}
.carousel__track{overflow:hidden}.carousel__list{display:flex;gap:20px;list-style:none;margin:0;padding:0;will-change:transform}.carousel__slide{flex:0 0 auto}
.carousel .card{height:100%}.contact-slider .ph{height:var(--h,50vh);aspect-ratio:auto}
.quote-slider .card{max-width:760px;margin:0 auto}

h1,h2{color:var(--black)}a:focus-visible,.btn:focus-visible,button:focus-visible{outline:3px solid var(--butter);outline-offset:2px}footer.site .ph{background:repeating-linear-gradient(45deg,#164C5A 0 12px,#1E5A69 12px 24px);border-color:#3E7C8A;color:#BFD6DC}.viewer-bar{background:#0B2F3A!important}

.ph-img{margin:0;border-radius:var(--radius);overflow:hidden;background:var(--grey-ultra)}.ph-img img{width:100%;height:100%;object-fit:cover;display:block}.ph-img.r169{aspect-ratio:16/9}.ph-img.r43{aspect-ratio:4/3}.ph-img.r11{aspect-ratio:1/1}.ph-img.logo{width:150px;height:44px;background:none}.ph-img.logo img{object-fit:contain}.ph small{display:block;color:#7A8A8C;font-size:.7rem;margin-top:4px}

.ph.icon,.ph-img.icon{width:56px;height:56px;padding:0;aspect-ratio:1}.ph-img.icon{background:none;border-radius:0}

.ph-img.vid video{width:100%;height:100%;object-fit:cover;display:block}.wa-float{position:fixed;right:18px;bottom:18px;background:#25D366;color:#fff;font-weight:700;padding:12px 18px;border-radius:999px;text-decoration:none;z-index:50;box-shadow:0 6px 18px rgba(0,0,0,.2)}

nav.main li.has ul a:hover{background:var(--grey-ultra)}nav.main li.has>a::after{content:""}

table.spec{width:100%;border-collapse:collapse;font-size:.95rem}table.spec th{text-align:left;padding:10px;border-bottom:1px solid var(--grey-line);width:38%;font-weight:600}table.spec td{padding:10px;border-bottom:1px solid var(--grey-line)}
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}.tiles.wide{grid-template-columns:repeat(6,1fr)}.tile{border:1px solid var(--grey-line);border-radius:var(--radius);padding:14px;background:#fff}.tile b{display:block;font-family:Montserrat;font-size:1.15rem;color:var(--teal)}.tile span{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.tile small{display:block;color:var(--muted);margin-top:4px}
ul.checks{list-style:none;padding:0;margin:0;display:grid;gap:10px}ul.checks li::before{content:"✓";color:var(--teal);font-weight:700;margin-right:10px}
.sticky-cta{position:sticky;bottom:0;z-index:40;background:var(--ink);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:12px 24px;flex-wrap:wrap}.sticky-cta .btn{padding:10px 18px}.sticky-cta .btn.outline{color:#fff;border-color:#fff}
@media(max-width:900px){.tiles,.tiles.wide{grid-template-columns:repeat(2,1fr)}}

ul.cols-list{columns:3;list-style:none;padding:0;margin:0 0 28px}ul.cols-list li{padding:4px 0;break-inside:avoid}@media(max-width:900px){ul.cols-list{columns:1}}

.tag-ref{display:inline-block;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border:1px solid var(--grey-line);border-radius:4px;padding:2px 6px;margin-top:8px}.ref-note{margin-top:8px;font-size:.8rem}

.skip{position:absolute;left:-9999px;top:0;background:var(--teal);color:#fff;padding:8px 12px;z-index:100}.skip:focus{left:8px;top:8px}