/* ============================================================
   小狼狗站 · 号易官方号卡平台
   配色参照 haoyi-hk.com：正蓝主色 + 浅色底 + 企业站质感
   ============================================================ */
:root{
  /* 文字 */
  --ink:#1E293B;
  --ink2:#334155;
  --muted:#64748B;
  --gray:#9CA3AF;
  /* 主色：正蓝系 */
  --blue:#287CC5;
  --blue-d:#046BD2;
  --blue-l:#045CB4;
  --blue-soft:#F0F5FA;
  --cyan:#38BDF8;
  /* 背景 */
  --bg:#FFFFFF;
  --bg-soft:#FBFBFB;
  --bg-soft2:#F0F5FA;
  --bg-dark:#0F172A;
  /* 描边 */
  --line:#E2E8F0;
  --line2:#ECEFF3;
  /* 阴影 */
  --shadow:0 8px 24px rgba(15,23,42,.08);
  --shadow-lg:0 18px 48px rgba(15,23,42,.12);
  --r:10px;
  --wrap:1200px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
em{font-style:normal}
.wrap{width:min(var(--wrap),calc(100% - 48px));margin:auto}
@media(min-width:1440px){.wrap{width:min(1320px,calc(100% - 80px))}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--bg-dark);color:#94A3B8;font-size:12.5px}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px}
.topbar span{display:inline-flex;align-items:center;gap:7px}
.topbar i{width:6px;height:6px;border-radius:50%;background:#22C55E;box-shadow:0 0 8px #22C55E}
.topbar a{color:#E2E8F0;font-weight:600}
.topbar a:hover{color:var(--cyan)}

/* ---------- 导航 ---------- */
header.site{
  position:sticky;top:0;z-index:200;background:rgba(255,255,255,.96);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line2);
}
.nav{height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;font-size:20px;font-weight:800;letter-spacing:-.2px}
.logo-mark{width:44px;height:44px;border-radius:11px;display:block;flex:none;object-fit:cover;
  box-shadow:0 6px 16px rgba(226,97,55,.28)}
.brand small{display:block;font-size:10.5px;font-weight:500;color:var(--muted);letter-spacing:.6px;line-height:1.2}
.navlinks{display:flex;align-items:center;gap:4px;font-size:15px;font-weight:600;color:var(--ink2)}
.navlinks a{padding:9px 15px;border-radius:6px;transition:.2s}
.navlinks a:hover{color:var(--blue);background:var(--blue-soft)}
.navlinks a.on{color:var(--blue);background:var(--blue-soft)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-text-link{font-size:14px;font-weight:600;color:var(--ink2);padding:8px 0;transition:.2s}
.nav-text-link:hover{color:var(--blue)}
.menu-btn{display:none;background:none;border:0;font-size:22px;color:var(--ink);cursor:pointer;padding:6px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:6px;
  padding:12px 24px;font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:.22s;white-space:nowrap}
.btn-main{color:#fff;background:var(--blue);box-shadow:0 8px 20px rgba(40,124,197,.28)}
.btn-main:hover{background:var(--blue-l);transform:translateY(-2px);box-shadow:0 12px 28px rgba(40,124,197,.36)}
.btn-ghost{color:var(--blue);background:#fff;border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue);background:var(--blue-soft)}
.btn-light{color:var(--blue);background:#fff;font-weight:700}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.18)}
.btn-outline-light{color:#fff;border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.08)}
.btn-outline-light:hover{background:rgba(255,255,255,.18);border-color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:15px 32px;font-size:16px}
.btn:focus-visible{outline:3px solid rgba(40,124,197,.4);outline-offset:2px}
.btn:active{transform:translateY(0) scale(.99)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#0B2545 0%,#174A7C 48%,#287CC5 100%);
}
.hero:after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(to right,rgba(0,0,0,.7),transparent 78%);
  -webkit-mask-image:linear-gradient(to right,rgba(0,0,0,.7),transparent 78%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;
  align-items:center;padding:72px 0 78px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:#BAE6FD;background:rgba(56,189,248,.14);border:1px solid rgba(56,189,248,.32);
  padding:7px 15px;border-radius:99px}
.hero h1{margin:20px 0 16px;font-size:48px;line-height:1.2;font-weight:800;letter-spacing:-1px}
.hero h1 em{color:#7DD3FC}
.hero p.lead{color:#CBD5E1;font-size:16.5px;line-height:1.9;max-width:560px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:40px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.16);border-radius:8px;overflow:hidden}
.hero-points div{background:rgba(11,37,69,.55);padding:16px 18px}
.hero-points b{display:block;font-size:19px;color:#fff;letter-spacing:-.3px}
.hero-points span{font-size:12.5px;color:#94B8DC}

/* 邀请码卡 */
.invite-card{background:rgba(255,255,255,.09);border:1px solid rgba(186,230,253,.26);
  border-radius:14px;padding:26px;backdrop-filter:blur(12px);box-shadow:0 24px 56px rgba(0,0,0,.28)}
.invite-card .ic-top{display:flex;align-items:center;justify-content:space-between;
  font-size:11.5px;letter-spacing:1.4px;color:#94B8DC;font-weight:700}
.ic-code{margin:16px 0 6px;font:800 40px/1 Consolas,"SF Mono",monospace;letter-spacing:4px;color:#7DD3FC}
.ic-hint{font-size:12.5px;color:#9DC0DD;margin-bottom:18px}
.ic-btn{display:block;text-align:center;background:#fff;color:var(--blue);font-weight:800;
  border-radius:8px;padding:12px;font-size:15px;transition:.2s}
.ic-btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,0,0,.22)}
.ic-list{margin-top:18px;display:grid;gap:9px}
.ic-list div{display:flex;align-items:center;gap:9px;font-size:13px;color:#CBD5E1}
.ic-list i{width:16px;height:16px;border-radius:50%;background:rgba(34,197,94,.2);
  color:#4ADE80;display:grid;place-items:center;font-size:10px;font-style:normal;flex:none}

/* ---------- 通用区块 ---------- */
.section{padding:74px 0}
.section.soft{background:var(--bg-soft)}
.section.soft2{background:var(--bg-soft2)}
.head{max-width:740px;margin:0 auto 40px;text-align:center}
.kicker{display:inline-block;font:700 12px/1.2 Consolas,monospace;letter-spacing:1.8px;
  color:var(--blue);background:var(--blue-soft);padding:6px 12px;border-radius:99px;margin-bottom:14px}
.head h2{font-size:34px;line-height:1.3;letter-spacing:-.6px;margin-bottom:12px}
.head h2 em{color:var(--blue)}
.head p{color:var(--muted);font-size:15.5px;line-height:1.85}
.head.left{margin:0 0 32px;text-align:left;max-width:none;display:flex;align-items:flex-end;
  justify-content:space-between;gap:24px;flex-wrap:wrap}
.head.left>div{max-width:660px}

/* ---------- 优势卡 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;
  transition:.24s}
.feat:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#BFD7EE}
.feat .fi{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;
  margin-bottom:15px;background:var(--blue-soft);color:var(--blue)}
.feat .fi .fic{width:23px;height:23px;display:block}
.feat h3{font-size:17.5px;margin-bottom:8px;letter-spacing:-.2px}
.feat p{color:var(--muted);font-size:13.5px;line-height:1.85}

/* ---------- 套餐列表（文字详情式） ---------- */
.plan-list{display:grid;gap:14px}
.plan-row{
  display:grid;grid-template-columns:130px 1fr 150px;gap:24px;align-items:center;
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--blue);
  border-radius:var(--r);padding:22px 26px;transition:.22s;
}
.plan-row:hover{box-shadow:var(--shadow);border-color:#BFD7EE;border-left-color:var(--blue-d)}
.pr-op{text-align:center}
.pr-op b{display:block;font-size:17px;color:var(--ink);margin-bottom:4px}
.pr-op span{font-size:11.5px;color:#fff;background:var(--blue);padding:2px 9px;border-radius:99px}
.pr-body h3{font-size:17px;margin-bottom:6px;letter-spacing:-.2px}
.pr-body p{font-size:13.5px;color:var(--ink2);line-height:1.8}
.pr-body .pr-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:9px}
.pr-body .pr-meta span{font-size:11.5px;color:var(--blue);background:var(--blue-soft);
  padding:3px 9px;border-radius:4px}
.pr-act{text-align:right}
.pr-act .price{font-size:13px;color:var(--muted);margin-bottom:10px}
.pr-act .price b{font-size:26px;color:var(--blue);letter-spacing:-1px}
.plan-note{margin-top:16px;font-size:12.5px;color:var(--gray);line-height:1.85}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 22px}
.step:hover{box-shadow:var(--shadow)}
.step .sn{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:var(--blue);color:#fff;font-weight:800;font-size:15px;margin-bottom:14px}
.step h3{font-size:16.5px;margin-bottom:7px}
.step p{font-size:13px;color:var(--muted);line-height:1.85}

/* ---------- 合作伙伴 ---------- */
.partners{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.partner{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 16px;
  text-align:center;transition:.22s}
.partner:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.partner b{display:block;font-size:17px;margin-bottom:6px;color:var(--ink)}
.partner span{font-size:12.5px;color:var(--muted)}

/* ---------- 合伙人等级 ---------- */
.levels{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.level{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.22s}
.level:hover{box-shadow:var(--shadow);border-color:#BFD7EE}
.lv-badge{width:64px;height:64px;border-radius:12px;overflow:hidden;margin-bottom:14px;
  background:#fff;border:1px solid var(--line)}
.lv-badge img{width:100%;height:100%;object-fit:cover}
.level h3{font-size:17.5px;margin-bottom:10px}
.lv-req{font-size:13px;color:var(--muted);background:var(--bg-soft2);border:1px solid var(--line);
  border-radius:6px;padding:9px 13px;margin-bottom:10px}
.lv-req b{color:var(--blue);font-size:16px}
.lv-bonus{margin-top:10px;font-size:12.5px;font-weight:600;color:var(--blue-d);
  background:var(--blue-soft);border:1px solid #BFD7EE;border-radius:6px;padding:7px 11px;display:inline-block}
.lv-bonus b{font-size:17px;color:var(--blue)}

/* ---------- 公告 / 资讯 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:.22s}
.news:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#BFD7EE}
.news .tag{font-size:11.5px;font-weight:700;color:var(--blue);background:var(--blue-soft);
  padding:4px 10px;border-radius:4px;display:inline-block;margin-bottom:11px}
.news h3{font-size:16.5px;line-height:1.55;margin-bottom:9px}
.news p{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:12px}
.news .meta{font-size:12px;color:var(--gray)}

/* ---------- 联系卡 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cc{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;text-align:center;transition:.22s}
.cc:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.cc .ci{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;margin:0 auto 13px;
  background:var(--blue-soft);color:var(--blue)}
.cc .ci svg{width:23px;height:23px}
.cc small{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}
.cc b{display:block;font-size:16px;word-break:break-all}
.cc .copy{margin-top:11px;font-size:12px;color:var(--blue);font-weight:700;cursor:pointer;
  border:1px solid #BFD7EE;background:var(--blue-soft);border-radius:6px;padding:6px 12px;display:inline-block;transition:.2s}
.cc .copy:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ---------- CTA ---------- */
.cta-band{background:linear-gradient(120deg,#0B2545,#174A7C 60%,#287CC5);color:#fff;padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-inner h2{font-size:30px;letter-spacing:-.5px;margin-bottom:9px}
.cta-inner p{color:#BAE6FD;font-size:15px}

/* ---------- 页脚 ---------- */
footer.site{background:var(--bg-dark);color:#94A3B8;padding:52px 0 24px}
.fgrid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:36px}
footer.site .brand{color:#fff}
footer.site .brand small{color:#94A3B8}
footer.site .fdesc{margin-top:14px;font-size:13px;line-height:1.9;max-width:340px}
footer.site h4{color:#fff;font-size:14.5px;margin-bottom:14px;font-weight:700}
footer.site a{display:block;font-size:13px;margin:8px 0;transition:.2s}
footer.site a:hover{color:var(--cyan)}
.fcontact b{display:block;color:#fff;font-size:13.5px;margin-bottom:2px}
.fcontact span{display:block;font-size:12.5px;margin-bottom:12px}
.fbottom{border-top:1px solid rgba(148,163,184,.16);margin-top:34px;padding-top:18px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12px;color:#64748B}

/* ---------- 内页头 ---------- */
.page-hero{background:linear-gradient(120deg,#0B2545,#174A7C 58%,#287CC5);color:#fff;padding:52px 0 56px}
.page-hero h1{font-size:38px;letter-spacing:-.8px;line-height:1.25;margin-bottom:12px}
.page-hero h1 em{color:#7DD3FC}
.page-hero p{color:#CBD5E1;font-size:15.5px;line-height:1.85;max-width:720px}
.crumb{font-size:12.5px;color:#94B8DC;margin-bottom:14px}
.crumb a:hover{color:#7DD3FC}

/* ---------- 文章 ---------- */
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.article{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:36px 40px}
.article h1{font-size:30px;line-height:1.35;letter-spacing:-.5px;margin-bottom:14px}
.article .ameta{display:flex;gap:14px;font-size:12.5px;color:var(--muted);
  padding-bottom:18px;border-bottom:1px solid var(--line2);margin-bottom:24px}
.article h2{font-size:21px;margin:28px 0 12px}
.article h3{font-size:17px;margin:22px 0 10px}
.article p{color:var(--ink2);font-size:15px;line-height:2;margin-bottom:14px}
.article ul,.article ol{padding-left:22px;margin:0 0 14px}
.article li{color:var(--ink2);font-size:15px;line-height:2;margin-bottom:6px}
.article .tip{background:var(--blue-soft);border-left:3px solid var(--blue);border-radius:0 8px 8px 0;
  padding:15px 20px;margin:20px 0;font-size:14px;color:var(--ink2);line-height:1.9}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;position:sticky;top:92px}
.side-card h4{font-size:13.5px;color:var(--blue);letter-spacing:1px;margin-bottom:12px;font-family:Consolas,monospace}
.side-card a{display:block;font-size:13.5px;color:var(--ink2);padding:9px 0;border-bottom:1px solid var(--line2);transition:.2s}
.side-card a:last-child{border:0}
.side-card a:hover{color:var(--blue);padding-left:4px}

/* ---------- 列表页 ---------- */
.list-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.post{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:24px 26px;transition:.22s;margin-bottom:14px}
.post:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#BFD7EE}
.post .tag{font-size:11.5px;font-weight:700;color:var(--blue);background:var(--blue-soft);
  padding:4px 10px;border-radius:4px;display:inline-block;margin-bottom:10px}
.post h2{font-size:19px;line-height:1.5;margin-bottom:8px}
.post p{font-size:13.5px;color:var(--muted);line-height:1.85;margin-bottom:9px}
.post .meta{font-size:12px;color:var(--gray)}

/* ---------- 工具 ---------- */
.toast{position:fixed;left:50%;bottom:40px;transform:translate(-50%,16px);padding:11px 22px;
  border-radius:8px;background:var(--bg-dark);color:#E2E8F0;font-size:13px;z-index:400;
  border:1px solid rgba(40,124,197,.5);box-shadow:0 16px 36px rgba(15,23,42,.35);
  opacity:0;transition:.3s;pointer-events:none}
.toast.on{opacity:1;transform:translate(-50%,0)}
.totop{position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:8px;
  border:1px solid var(--line);background:#fff;color:var(--blue);font-size:17px;cursor:pointer;
  box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.3s;z-index:100}
.totop.on{opacity:1;visibility:visible}
.totop:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

/* 移动底栏 */
.mnav{display:none;position:fixed;left:0;right:0;bottom:0;z-index:300;background:#fff;
  border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(15,23,42,.08)}
.mnav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 0 9px;
  font-size:11px;color:var(--muted);font-weight:600;transition:color .2s,background .2s}
.mnav a b{display:block;line-height:0}
.mnav a .mi{width:22px;height:22px;display:block;transition:transform .22s ease}
.mnav a.on,.mnav a:hover{color:var(--blue)}
.mnav a.on .mi{transform:translateY(-1px) scale(1.06)}
.mnav a:active{background:var(--blue-soft)}
.mnav a:active .mi{transform:scale(.92)}

/* 侧栏公告卡 */
.side-invite{background:var(--blue-soft);text-align:center;margin-top:14px}
.side-invite .cd{font:800 24px/1 Consolas,monospace;letter-spacing:3px;color:var(--blue);
  background:#fff;border:1px dashed #A9C9F5;border-radius:8px;padding:13px 0;margin:10px 0}

/* ---------- 响应式 ---------- */
@media(max-width:1100px){
  .feat-grid{grid-template-columns:1fr 1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .partners{grid-template-columns:repeat(2,1fr)}
  .levels{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .article-wrap,.list-wrap{grid-template-columns:1fr}
  .side-card{position:static}
  .fgrid{grid-template-columns:1fr 1fr}
  .plan-row{grid-template-columns:110px 1fr;gap:16px}
  .pr-act{grid-column:1/-1;text-align:left;display:flex;align-items:center;gap:16px}
  .pr-act .price{margin:0}
}
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:52px 0 60px}
  .hero h1{font-size:36px}
  .head h2{font-size:28px}
  .page-hero h1{font-size:30px}
  .article{padding:26px 22px}
  .section{padding:54px 0}
}
@media(max-width:800px){
  .wrap{width:calc(100% - 32px)}
  .topbar .hide-m{display:none}
  .nav{height:64px}
  .brand{min-width:0;flex:1;gap:9px}
  .brand small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:10px}
  .logo-mark{width:38px;height:38px}
  .nav-actions .nav-text-link{display:none}
  .navlinks{position:absolute;top:64px;left:0;right:0;background:#fff;display:block;
    max-height:0;overflow:hidden;transition:.3s;border-bottom:1px solid var(--line);
    box-shadow:0 12px 24px rgba(15,23,42,.08);padding:0 16px}
  .navlinks.open{max-height:460px;padding:8px 16px 14px}
  .navlinks a{display:block;padding:12px 8px;border-bottom:1px solid var(--line2)}
  .menu-btn{display:block}
  .feat-grid,.news-grid,.contact-grid,.steps,.partners{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr 1fr;gap:12px}
  .cc{padding:18px 12px}
  .cc .ci{width:38px;height:38px;margin-bottom:10px}
  .cc b{font-size:14.5px}
  .plan-row{grid-template-columns:1fr;gap:12px}
  .pr-op{text-align:left;display:flex;align-items:center;gap:10px}
  .pr-op b{margin:0}
  .hero-points{grid-template-columns:1fr}
  .mnav{display:flex;padding-bottom:env(safe-area-inset-bottom)}
  body{padding-bottom:calc(96px + env(safe-area-inset-bottom))}
  .totop{bottom:calc(96px + env(safe-area-inset-bottom));right:14px;width:40px;height:40px}
  .fgrid{grid-template-columns:1fr;gap:24px}
  .cta-inner h2{font-size:23px}
}
@media(max-width:420px){
  .hero h1{font-size:29px}
  .hero-actions .btn{width:100%}
  .brand small{display:none}
}