*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:82px}body{margin:0;background:#f4f7fb;color:#20324b;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75}.hero{background:linear-gradient(125deg,#103e79,#1769ad 62%,#37a4c4);color:#fff;padding:48px 20px 42px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;width:340px;height:340px;border:1px solid #ffffff2b;border-radius:50%;right:-90px;top:-150px;box-shadow:0 0 0 35px #ffffff0d,0 0 0 75px #ffffff0a}.hero-inner{max-width:1080px;margin:auto;position:relative;z-index:1}.eyebrow{display:inline-block;border:1px solid #ffffff70;border-radius:30px;padding:3px 13px;font-size:13px;letter-spacing:1px}.hero h1{font-size:clamp(34px,7vw,58px);line-height:1.2;margin:16px 0 8px;font-weight:850;letter-spacing:1px}.hero-lead{font-size:clamp(16px,2.8vw,21px);margin:0;max-width:680px;color:#e6f4ff}.hero-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:22px}.hero-tags span{background:#ffffff20;border:1px solid #ffffff40;border-radius:20px;padding:4px 13px;font-size:13px}.quick-nav{position:sticky;top:0;z-index:10;display:flex;gap:6px;overflow-x:auto;white-space:nowrap;background:#fff;border-bottom:1px solid #e4eaf2;padding:10px max(16px,calc((100% - 1080px)/2));box-shadow:0 3px 12px #17375e0a}.quick-nav a{color:#31577f;text-decoration:none;padding:6px 12px;border-radius:18px;font-size:13px}.quick-nav a:hover{background:#eaf3ff;color:#14549a}.container{max-width:1080px;margin:26px auto;padding:0 18px}.section{margin:38px 0}.section-card{background:#fff;border:1px solid #e5ebf3;border-radius:20px;padding:26px;box-shadow:0 8px 30px #17375e0a}.section-kicker{color:#e16b28;font-size:12px;font-weight:800;letter-spacing:1.4px;text-transform:uppercase}.intro h2,.section-heading h2,.participate h2{margin:6px 0 10px;color:#153e70;font-size:clamp(23px,4vw,31px);line-height:1.35}.intro p{margin:8px 0}.notice{background:#edf6ff;border-left:4px solid #2c82c8;border-radius:9px;padding:12px 15px;margin-top:18px;font-size:14px;color:#31577f}.notice.warning{background:#fff8e9;border-color:#e6a43b;color:#72511e}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:18px}.section-heading h2{margin-bottom:0}.section-heading>p{max-width:360px;color:#6b7c91;font-size:14px;margin:0}.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.benefit{background:#fff;border:1px solid #e3eaf2;border-radius:16px;padding:18px;min-height:185px;box-shadow:0 5px 18px #17375e08}.benefit-icon{width:42px;height:42px;border-radius:13px;background:#eaf3ff;color:#1766a8;display:grid;place-items:center;font-size:24px;font-weight:800}.benefit h3{margin:10px 0 5px;color:#174b82;font-size:18px}.benefit p{margin:0;color:#5d6e82;font-size:14px}.platform-note{background:#eef7f6;border:1px solid #d5eeea;border-radius:12px;padding:12px 15px;margin:16px 0;color:#356b66;font-size:14px}.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.step{background:#fff;border:1px solid #e3eaf2;border-radius:16px;padding:16px;box-shadow:0 5px 18px #17375e08;min-width:0}.step-copy{display:flex;gap:12px;align-items:flex-start;margin-bottom:12px}.step-no{background:#eaf3ff;color:#1766a8;font-weight:850;border-radius:10px;padding:3px 9px;font-size:14px}.step h3{margin:0 0 4px;color:#194d80;font-size:17px}.step p{margin:0;color:#66788c;font-size:13px}.shot{border:0;background:#f2f5f9;border-radius:12px;padding:8px;width:100%;display:flex;flex-direction:column;align-items:center;gap:5px;cursor:zoom-in}.shot img{height:300px;max-width:100%;object-fit:contain}.shot span{font-size:12px;color:#3575a9}.faq-list{display:grid;gap:10px}.faq-list details{background:#fff;border:1px solid #e2e9f1;border-radius:14px;overflow:hidden}.faq-list summary{cursor:pointer;list-style:none;padding:15px 18px;color:#194b7d;font-weight:750;display:flex;align-items:center;gap:12px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"＋";margin-left:auto;color:#2a78b6;font-size:20px}.faq-list details[open] summary{background:#f0f7ff}.faq-list details[open] summary:after{content:"－"}.answer{padding:2px 18px 14px;color:#4f6074;font-size:14px}.answer p{margin:10px 0}.participate{background:linear-gradient(135deg,#fff,#f1f7ff)}.participate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}.participate-grid>div{background:#fff;border:1px solid #e3ebf4;border-radius:13px;padding:14px}.participate-grid b{color:#1b5c91}.participate-grid p{font-size:13px;color:#64758a;margin:4px 0 0}.closing{font-weight:700;color:#174b82;font-size:17px}.disclaimer{border-top:1px solid #dce6f0;padding-top:13px;color:#7a8796;font-size:12px}.signature{text-align:right;color:#315f87;font-size:13px;font-weight:700;margin-top:8px}footer{display:flex;justify-content:space-between;gap:12px;max-width:1080px;margin:0 auto;padding:22px 18px 35px;color:#8090a2;font-size:12px}.lightbox{position:fixed;inset:0;background:#081727ed;z-index:30;display:none;align-items:center;justify-content:center;padding:24px}.lightbox.open{display:flex}.lightbox img{max-width:100%;max-height:90vh;object-fit:contain}.lightbox-close{position:absolute;right:18px;top:12px;border:0;background:#ffffff20;color:white;font-size:34px;width:46px;height:46px;border-radius:50%;cursor:pointer}@media(max-width:760px){.hero{padding:36px 18px 30px}.container{padding:0 13px;margin-top:16px}.section-card{padding:19px}.section-heading{display:block}.section-heading>p{margin-top:8px}.benefit-grid{grid-template-columns:repeat(2,1fr);gap:10px}.benefit{padding:14px;min-height:0}.benefit h3{font-size:16px}.benefit p{font-size:13px}.steps{grid-template-columns:1fr}.shot img{height:330px}.participate-grid{grid-template-columns:1fr}.quick-nav{padding:8px 10px}.quick-nav a{font-size:12px;padding:5px 9px}footer{padding:18px;display:block}footer span{display:block}}@media(max-width:390px){.benefit-grid{grid-template-columns:1fr}.shot img{height:290px}}
/* Emphasis for owners' most tangible interests */
.key-benefits .benefit{position:relative;border-top:4px solid #2679b8;padding-top:15px}
.key-benefits .benefit:nth-child(2){border-top-color:#df8b32}
.key-benefits .benefit:nth-child(3){border-top-color:#299879}
.key-benefits .benefit:nth-child(4){border-top-color:#7b6ab4}
.key-benefits .benefit:nth-child(5){border-top-color:#d16b58}
.key-benefits .benefit:nth-child(6){border-top-color:#4b91a4}
.benefit-tag{font-size:11px;font-weight:800;letter-spacing:.7px;color:#8493a5;margin-top:9px}
.key-benefits .benefit h3{font-size:19px;line-height:1.4}
.key-benefits .benefit strong{display:block;margin-top:12px;padding-top:10px;border-top:1px dashed #dce5ef;color:#244f78;font-size:13px;line-height:1.6}
.benefit-bottomline{margin-top:16px;padding:16px 18px;border-radius:13px;background:#fff4e8;border:1px solid #f3d7b8;color:#7b4a1c;font-size:16px;line-height:1.7}
.benefit-bottomline b{color:#a74e16}
@media(max-width:760px){.key-benefits .benefit h3{font-size:17px}.benefit-bottomline{font-size:14px}}

/* High-contrast campaign refresh */
:root{--ink:#172b4d;--hot:#e43d24;--orange:#ff8a00;--gold:#ffd447}
body{background:#fff8ef;color:var(--ink)}
.hero{background:radial-gradient(circle at 88% 8%,#ffb000 0,transparent 24%),linear-gradient(120deg,#7e1718 0%,#c62828 48%,#f05a28 100%);padding-top:54px;padding-bottom:48px}
.hero h1{font-size:clamp(38px,8vw,66px);letter-spacing:0}
.hero h1 em{font-style:normal;color:#ffe36b;text-shadow:0 3px 0 #8e241b}
.hero-lead{font-weight:800;color:#fff;font-size:clamp(17px,3vw,23px);max-width:850px}
.hero-impact{display:flex;flex-direction:column;gap:3px;max-width:760px;margin-top:20px;padding:14px 18px;border:2px solid #ffe36b;border-radius:14px;background:#fff2c9;color:#8a2419;box-shadow:0 8px 24px #5b100c55}
.hero-impact b{font-size:clamp(17px,3vw,22px);font-weight:950}
.hero-impact span{font-size:14px;font-weight:750}
.hero-tags span{background:#fff;color:#a52a1f;border:0;font-weight:850}
.quick-nav{border-bottom:3px solid #ffb000;box-shadow:0 4px 16px #8e2b1618}
.quick-nav a{color:#8f271d;font-weight:800}
.quick-nav a:hover{background:#ffe7cf;color:#bd241a}
.container{max-width:1120px}
.section-kicker{color:#d94320}
.intro.section-card{border:2px solid #ffc45a;background:linear-gradient(135deg,#fff 0%,#fff4df 100%)}
.intro h2,.section-heading h2,.participate h2{color:#8c211c}
.notice{background:#fff0d8;border-left-color:#f28a00;color:#80431d}
.key-benefits .benefit{border:1px solid #f3d3b7;border-top:6px solid #ed4b2b;background:linear-gradient(180deg,#fff 0%,#fffaf4 100%);box-shadow:0 8px 22px #8e35140f}
.key-benefits .benefit:nth-child(2){border-top-color:#ff9b00}
.key-benefits .benefit:nth-child(3){border-top-color:#12a17a}
.key-benefits .benefit:nth-child(4){border-top-color:#7655c5}
.key-benefits .benefit:nth-child(5){border-top-color:#e15c7a}
.key-benefits .benefit:nth-child(6){border-top-color:#287eaa}
.key-benefits .benefit:first-child{background:linear-gradient(145deg,#fff0e9,#fff 72%);border:2px solid #ef5b35;border-top:8px solid #df321f;box-shadow:0 10px 26px #c83b2220}
.key-benefits .benefit:first-child h3{color:#c42d1d;font-size:21px}
.benefit-icon{background:#ffe3d2;color:#c33220}
.key-benefits .benefit h3{color:#9a2b1d}
.key-benefits .benefit strong{background:#fff0df;border:0;border-radius:9px;padding:10px;margin-top:12px;color:#a12b1c}
.benefit-tag{color:#b85b31}
.benefit-bottomline{background:linear-gradient(100deg,#8d1f1c,#d83d24);border:0;color:#fff;padding:19px 21px;font-size:18px;font-weight:800;box-shadow:0 8px 22px #a62c1d26}
.benefit-bottomline b{color:#ffe36b}
.benefit-bottomline small{display:block;margin-top:6px;font-size:12px;font-weight:500;color:#ffe7d8}
.faq-list details{border-color:#f0d6c2}
.faq-list summary{color:#8c271d}
.faq-list details[open] summary{background:#fff0df}
.faq-list summary:after{color:#e34a26}
.participate{background:linear-gradient(135deg,#fff,#fff0dc);border-color:#ffd28a}
.participate-grid>div{border-color:#f4d8bc}
.participate-grid b,.closing{color:#9a2a1e}
@media(max-width:760px){.hero{padding:38px 17px 32px}.hero-impact{padding:12px 14px}.hero-impact b{font-size:17px}.key-benefits .benefit:first-child h3{font-size:19px}.benefit-bottomline{font-size:16px}}


/* WeChat mini-program registration CTA */
.register-callout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:center;margin:18px 0 22px;padding:22px;border:2px solid #f5a623;border-radius:20px;background:linear-gradient(125deg,#fff1d1 0%,#fff 58%,#e8f8ef 100%);box-shadow:0 10px 28px #a84a1a18}
.register-pill{display:inline-block;padding:4px 12px;border-radius:20px;background:#d92f20;color:#fff;font-size:12px;font-weight:900;letter-spacing:1px}
.register-copy h3{margin:10px 0 6px;color:#9c211a;font-size:clamp(22px,3.5vw,30px);line-height:1.35}
.register-lead{margin:0;color:#613d24;font-size:15px;font-weight:750}
.register-actions{list-style:none;counter-reset:register;display:grid;gap:10px;padding:0;margin:17px 0}
.register-actions li{counter-increment:register;display:grid;grid-template-columns:34px 1fr;column-gap:9px;align-items:center}
.register-actions li:before{content:counter(register);grid-row:span 2;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#ed4a25;color:#fff;font-weight:900}
.register-actions b{color:#a32b1d;font-size:15px}
.register-actions span{color:#665c52;font-size:13px}
.register-reminder{padding:11px 13px;border-left:4px solid #ed4a25;border-radius:8px;background:#fff;color:#85311f;font-size:13px;font-weight:750}
.register-qr{border:0;border-radius:16px;background:#fff;padding:12px;box-shadow:0 5px 20px #143b291a;display:flex;flex-direction:column;align-items:center;gap:8px;cursor:zoom-in}
.register-qr img{display:block;width:100%;max-width:270px;height:auto;aspect-ratio:1;object-fit:contain}
.register-qr span{color:#087b4a;font-size:13px;font-weight:900}
@media(max-width:760px){.register-callout{grid-template-columns:1fr;padding:17px;gap:16px}.register-qr{max-width:320px;width:100%;justify-self:center}.register-qr img{max-width:260px}.register-copy h3{font-size:23px}}