/* Trang chủ (bố cục kiểu Netflix: billboard tường thiệp + các hàng mẫu cuộn ngang), nền trắng hồng, chữ đậm + chữ viết tay. Tự đủ (không dùng site.css); thanh trên và chân trang do site.js dựng. */
:root{--edge:max(4vw,calc((100vw - 1240px) / 2));--fade:max(20px,calc((min(100vw,1240px) - 1140px) / 2)); /* lề trong của hàng thẻ (vùng mờ dần ở hai mép): hàng rộng 1240px như thanh menu, thẻ đầu thẳng cột nội dung 1140px */--bg:#fff;--card:#fff;--soft:#fff5f5;--ink:#1f1a1b;--muted:#6f6668;--line:#f0e4e5;--acc:#d6455d;--acc2:#ef7d8d;--sans:'Be Vietnam Pro',system-ui,sans-serif;--script:'Dancing Script',cursive}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--sans);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.script{font-family:var(--script);font-weight:700;color:var(--acc);letter-spacing:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:999px;font:600 15px var(--sans);border:1.5px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn-main{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--acc),var(--acc2));color:#fff;box-shadow:0 12px 28px rgba(214,69,93,.3)}
.btn-main::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.45) 50%,transparent 70%);transform:translateX(-120%)}
.btn-main:hover::after{transition:transform .7s ease;transform:translateX(120%)}
.btn-ghost{background:var(--card);border-color:var(--line);color:var(--acc);box-shadow:0 6px 18px rgba(0,0,0,.05)}
.btn-sm{padding:9px 18px;font-size:14px}

/* thanh trên: gọn 3 mục, "Sản phẩm" là menu thả; đã đăng nhập thì thấy ảnh đại diện (dựng ngay trong index.html) */
.hnav{position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:50;width:min(1240px,calc(100% - 8vw),calc(100% - 24px));border-radius:30px;transition:border-radius .2s;background:rgba(255,255,255,.6);backdrop-filter:blur(16px) saturate(1.6);-webkit-backdrop-filter:blur(16px) saturate(1.6);border:1px solid rgba(255,255,255,.55);box-shadow:0 10px 30px rgba(120,40,50,.1),inset 0 1px 0 rgba(255,255,255,.7)}
.hnav>.wrap{display:flex;align-items:center;gap:22px;height:58px;max-width:none;padding:0 10px 0 24px}
.logo{display:flex;align-items:center;gap:0;text-decoration:none;white-space:nowrap;line-height:1}
.logo .lw{position:relative;top:-2px;font:700 30px/1 var(--script);letter-spacing:.01em;text-transform:none;background:linear-gradient(135deg,var(--acc),var(--acc2));-webkit-background-clip:text;background-clip:text;color:transparent}
.logo .lh{flex:none;width:15px;height:14px;margin:-16px 0 0 -4px;fill:var(--acc2)} /* tim nhỏ như dấu chấm cuối "cưới nha ♥" */
[data-theme="dark"] .logo .lw{background-image:linear-gradient(135deg,#ff9aa9,#ef7d8d)}
/* 5 mục phẳng như Netflix: chữ nhạt, mục đang xem đậm */
.menu{display:flex;gap:20px;margin-left:10px;font-size:14px;color:var(--muted)}
.menu a{padding:6px 0;white-space:nowrap;transition:color .2s}
.menu a:hover,.menu a.on{color:var(--ink)}
.menu a.on{font-weight:600}
.hnav .theme-btn{margin-left:auto;width:36px;height:36px;border:0;background:none;color:var(--muted)}
.hnav .theme-btn:hover{color:var(--ink)}
.hacts{display:flex;align-items:center;gap:10px}
.hacts .login,.hacts .mine{font-size:14px;font-weight:600;padding:8px 14px;border-radius:999px}
.hacts .login:hover,.hacts .mine:hover{background:var(--soft)}
/* đã đăng nhập: nút màu "Thiệp của tôi" liền một mũi tên mở menu tài khoản */
.me{position:relative;display:flex;align-items:stretch;border-radius:999px;background:linear-gradient(120deg,var(--acc),var(--acc2));box-shadow:0 8px 20px rgba(214,69,93,.3);color:#fff}
.mine-btn{display:flex;align-items:center;padding:9px 14px 9px 18px;font-size:14px;font-weight:600;white-space:nowrap}
.caret{display:grid;place-items:center;width:34px;padding:0 4px 0 0;border:0;border-left:1px solid rgba(255,255,255,.35);border-radius:0 999px 999px 0;background:none;color:#fff;cursor:pointer}
.caret::before{content:"";width:6px;height:6px;border-right:1.6px solid #fff;border-bottom:1.6px solid #fff;transform:translateY(-2px) rotate(45deg);transition:transform .2s}
.me.open .caret::before{transform:translateY(1px) rotate(225deg)}
.mine-btn:hover,.caret:hover{background:rgba(255,255,255,.12)}
.mine-btn:hover{border-radius:999px 0 0 999px}
.mmenu{color:var(--ink)}
.mmenu{position:absolute;right:0;top:calc(100% + 10px);min-width:210px;padding:8px;border-radius:14px;background:var(--card);box-shadow:0 20px 50px rgba(120,40,50,.18);opacity:0;visibility:hidden;transform:translateY(-6px);transition:.2s}
.me.open .mmenu{opacity:1;visibility:visible;transform:none}
.mmenu .who{padding:8px 10px 10px;margin-bottom:4px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mmenu .who b{display:block;color:var(--ink);font-size:14px}
.mmenu a{display:block;padding:9px 10px;border-radius:10px;font-size:14px}
.mmenu a:hover{background:var(--soft)}
.burger{display:none;flex:none;width:40px;height:40px;padding:0;border-radius:50%;border:1px solid var(--line);background:var(--card);cursor:pointer;place-items:center}
.burger i,.burger i::before,.burger i::after{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink);position:relative;transition:.2s}
.burger i::before,.burger i::after{content:"";position:absolute;left:0}
.burger i::before{top:-5px}.burger i::after{top:5px}
.hnav.mopen{border-radius:24px}
.hnav.mopen .burger i{background:transparent}
.hnav.mopen .burger i::before{top:0;transform:rotate(45deg)}
.hnav.mopen .burger i::after{top:0;transform:rotate(-45deg)}
.mpanel{display:none;padding:6px 10px 14px;border-top:1px solid var(--line)}
.mpanel a{display:flex;align-items:center;gap:12px;padding:10px 8px;border-radius:12px;font-weight:500}
.mpanel a:hover{background:var(--soft)}
.mpanel i{flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-style:normal;background:var(--soft)}
@media (max-width:1060px){
  .menu,.hacts .login,.hacts .mine{display:none}
  .caret{display:none}.mine-btn{padding:8px 16px}
  .burger{display:grid}
  .hnav .theme-btn{display:none}
  .hacts{margin-left:auto}
  .hnav>.wrap{gap:10px;padding:0 8px 0 16px}
  .logo .lw{font-size:26px}
  .hnav.mopen .mpanel{display:block}
  .hacts{gap:8px}
}

/* billboard kiểu Netflix: tường ảnh bìa trôi phủ cả bề ngang, chữ bên trái trên lớp phủ mờ dần */
.bb{position:relative;height:88vh;min-height:560px;overflow:hidden;background:var(--bg)}
/* Mờ dần hai mép trên dưới làm bằng lớp phủ màu nền (.bb::after) chứ không dùng mask: mask trên khối cha của các cột đang trôi
   bắt trình duyệt vẽ lại cả bức tường vào một lớp riêng mỗi khung hình → giật. */
.bb .wall{position:absolute;inset:-4% -2%;display:grid;grid-template-columns:repeat(6,1fr);gap:14px;padding:0 14px;transform:rotate(-4deg)}
/* Mỗi cột = 2 lượt cùng bộ ảnh, trôi đúng nửa chiều cao rồi lặp. Khe giữa ảnh đặt bằng margin trên từng ảnh (không dùng gap) để nửa cột
   = trọn số ảnh + khe, không lệch nửa khe (7px) khi nối vòng. */
.col{display:flex;flex-direction:column;will-change:transform;animation:up 50s linear infinite}
.col:nth-child(even){animation-name:down;animation-duration:60s}
.bb.off .col{animation-play-state:paused} /* cuộn qua khỏi billboard thì dừng trôi, nhường máy cho phần dưới */
.col img{width:100%;aspect-ratio:9/16;margin-bottom:14px;object-fit:cover;object-position:top;border-radius:12px;box-shadow:0 12px 30px rgba(120,40,50,.14)}
@keyframes up{to{transform:translateY(-50%)}}
@keyframes down{from{transform:translateY(-50%)}to{transform:translateY(0)}}
.bb::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.9) 30%,rgba(255,255,255,.45) 58%,rgba(255,255,255,.1) 80%),linear-gradient(180deg,var(--bg) 0%,transparent 12%),linear-gradient(0deg,var(--bg) 0%,transparent 26%)}
.bb-in{position:absolute;z-index:2;left:calc(var(--edge) + 24px);top:52%;transform:translateY(-50%);max-width:620px}
.bb-in>*{animation:rise .8s cubic-bezier(.2,.8,.2,1) both}
.bb-in>:nth-child(2){animation-delay:.1s}.bb-in>:nth-child(3){animation-delay:.2s}.bb-in>:nth-child(4){animation-delay:.3s}
@keyframes rise{from{opacity:0;transform:translateY(24px)}}
.bb .kick{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:800;letter-spacing:.25em;color:var(--acc)}
.bb .kick b{display:grid;place-items:center;width:26px;height:26px;border-radius:6px;background:var(--acc);color:#fff;font-size:11px;letter-spacing:0}
.bb h1{margin:10px 0 2px;font:900 clamp(36px,4.2vw,58px)/1.05 var(--sans);letter-spacing:-.03em;color:var(--ink)}
.bb h1 em{display:block;font:700 1.08em/1.1 var(--script);font-style:normal;color:var(--acc);letter-spacing:0}
.bb .lead{margin:6px 0 24px;font-size:16px;max-width:460px;color:var(--muted)}
.bb .acts{display:flex;gap:12px;flex-wrap:wrap}
.bb .b{display:inline-flex;align-items:center;gap:10px;padding:12px 26px;border-radius:999px;font:700 16px var(--sans);transition:opacity .2s,transform .2s}
.bb .b:hover{transform:translateY(-2px)}
.bb .b-play{background:var(--ink);color:var(--bg)}
.bb .b-more{background:rgba(120,110,112,.18);color:var(--ink);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}

/* các hàng mẫu cuộn ngang */
.rows{position:relative;z-index:3;margin-top:-6vh;padding-bottom:40px}
.nrow{max-width:1240px;margin:0 auto 3.2vw} /* hàng thẻ cùng bề rộng và tâm với thanh menu; hai mép mờ dần nằm trong khung này nên trái phải cân nhau */
.nrow h2{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0 0 10px;padding:0 0 0 var(--fade); /* link "Xem tất cả" sát mép phải khung hàng, nơi thẻ cuối ló ra */font-size:clamp(17px,1.5vw,22px);font-weight:700}
.nrow h2 a{flex:none;font-size:13px;font-weight:600;color:var(--acc);white-space:nowrap} /* "Xem tất cả" luôn hiện, nằm sát mép phải hàng */
.nrow h2 a:hover{text-decoration:underline}
.track{position:relative}
.slider{display:flex;gap:16px;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;scroll-behavior:smooth;scrollbar-width:none;padding:16px var(--fade) 44px;scroll-padding-inline:var(--fade);margin-bottom:-26px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 var(--fade),#000 calc(100% - var(--fade)),transparent);mask-image:linear-gradient(90deg,transparent,#000 var(--fade),#000 calc(100% - var(--fade)),transparent)} /* thẻ trôi ra hai mép mờ dần thay vì bị cắt */
.slider::-webkit-scrollbar{display:none}
/* nút cuộn hàng: nút tròn nổi giữa hàng (không phủ dải mờ lên thẻ) */
.arrow{position:absolute;top:calc(50% - 40px);z-index:5;width:52px;height:52px;padding:0 0 4px;border:1px solid var(--line);border-radius:50%;background:var(--card);color:var(--ink);font-size:30px;line-height:1;cursor:pointer;box-shadow:0 10px 26px rgba(0,0,0,.25);opacity:0;transition:opacity .2s,transform .2s}
.arrow:hover{transform:scale(1.08)}
.track:hover .arrow{opacity:1}
.arrow.l{left:0}.arrow.r{right:0} /* nút nằm trong vùng mờ hai mép */
.ncard{position:relative;flex:none;width:clamp(140px,calc((min(100vw,1240px) - 2 * var(--fade) - 80px) / 5.5),240px)} /* 5 thẻ trọn + nửa thẻ ló ra trong phần giữa hai mép mờ (trừ 5 khe 16px) */
.ncard .pic{position:relative;display:block;border-radius:10px;overflow:hidden;background:var(--soft);box-shadow:0 8px 20px rgba(120,40,50,.1);transition:transform .25s,box-shadow .25s}
.ncard .pic>a{display:block}
.ncard img{width:100%;aspect-ratio:9/16;object-fit:cover;object-position:top}
.ncard .tag{position:absolute;top:10px;left:-6px;z-index:3;display:flex;align-items:center;height:24px;padding:0 20px 0 14px;color:#fff;font:800 11px/1 var(--sans);letter-spacing:.04em;text-transform:uppercase;white-space:nowrap;filter:drop-shadow(0 3px 6px rgba(0,0,0,.25));pointer-events:none;transition:transform .3s} /* ruy băng tràn mép trái 6px, nếp gấp tối bên dưới */
.ncard .tag svg{position:absolute;inset:0;z-index:-1;width:100%;height:100%;fill:#2f7d5b}
.ncard .tag::after{content:"";position:absolute;left:0;bottom:-6px;border-style:solid;border-width:6px 0 0 6px;border-color:#1b4d37 transparent transparent transparent}
.ncard .tag.hot svg{fill:var(--acc)}
.ncard .tag.hot::after{border-top-color:#8a1f2e}
.ncard:hover .tag{transform:translateY(-6px)} /* nhấc cùng ảnh khi rê chuột */
.ncard .info{position:absolute;left:0;right:0;bottom:0;z-index:2;display:flex;align-items:center;gap:8px;padding:28px 10px 10px;background:linear-gradient(0deg,rgba(10,7,8,.85),transparent);color:#fff;opacity:0;transform:translateY(8px);transition:.25s;pointer-events:none}
.ncard .info b{flex:1;min-width:0;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ncard .info .use{flex:none;padding:6px 12px;border-radius:999px;background:#fff;color:#111;font-size:12px;font-weight:700}
.ncard .info .use:hover{background:#ffe3ea}
.ncard:hover .pic{transform:translateY(-6px);box-shadow:0 18px 40px rgba(120,40,50,.25)}
.ncard:hover .info{opacity:1;transform:none;pointer-events:auto}
/* rê chuột: thiệp chạy thật thay ảnh bìa và tự trượt xuống */
.ncard .live{position:absolute;left:0;top:0;width:390px;border:0;pointer-events:none;transform-origin:0 0;opacity:0;transition:opacity .4s;background:#fff}
.ncard .live.on{opacity:1}
.ncard .scrollimg{position:absolute;left:0;top:0;z-index:1;width:100%;height:auto;aspect-ratio:auto;object-fit:fill;will-change:transform;pointer-events:none} /* ảnh dài toàn trang, trượt bằng transform */
/* top 5: số xếp hạng viền rỗng nấp sau góc dưới bên trái */
.top .slider{gap:20px}
.top .ncard{width:clamp(190px,calc((min(100vw,1240px) - 2 * var(--fade) - 60px) / 4.3),290px);padding-left:clamp(48px,4.2vw,70px)}
.top .num{position:absolute;left:0;bottom:-6px;z-index:0;font:900 clamp(110px,9.5vw,160px)/.8 var(--sans);color:var(--bg);-webkit-text-stroke:3px #e7c9ce;letter-spacing:-.06em}
.top .pic{z-index:1}
.wide .ncard{width:clamp(240px,26vw,380px)}
.wide .pic{aspect-ratio:16/9;background:#2a1517}
.wide iframe{position:absolute;left:0;top:0;width:1280px;height:720px;border:0;pointer-events:none;transform-origin:0 0}
.wide .pic img{height:100%;aspect-ratio:auto;object-position:center} /* poster 16:9 vừa khít khung, không bị ép dọc 9:16 như ảnh thiệp */
.wide .pic::after{content:"";position:absolute;left:0;right:0;bottom:0;height:50%;z-index:1;background:linear-gradient(0deg,rgba(0,0,0,.6),transparent);pointer-events:none} /* chữ trắng đọc được cả trên ảnh sáng */
.wide .lbl{position:absolute;left:12px;bottom:10px;z-index:2;color:#fff;font:800 18px var(--sans);text-shadow:0 2px 10px rgba(0,0,0,.8);transition:opacity .2s}
.ncard:hover .lbl{opacity:0} /* rê chuột: nhãn nhường chỗ cho tên + nút Dùng mẫu */
/* top 5 video: thẻ 16:9 có số xếp hạng, 3 thẻ trọn + một phần thẻ thứ 4 trong khung 1180px */
.top.wide .ncard{width:clamp(240px,calc((min(100vw,1240px) - 2 * var(--fade) - 60px) / 3.3),380px)}
.top.wide .num{bottom:-10px}
.wide .lbl small{display:block;font-weight:500;font-size:12px;color:#e0d6d2}
@media (max-width:700px){
  .bb{height:78vh}
  .bb .wall{grid-template-columns:repeat(3,1fr);opacity:.6}
  .bb .wall .col:nth-child(n+4){display:none}
  .bb-in{left:16px;right:16px;top:auto;bottom:9vh;transform:none}
  .bb::after{background:linear-gradient(180deg,var(--bg) 0%,transparent 12%),linear-gradient(0deg,var(--bg) 18%,rgba(255,255,255,.75) 50%,rgba(255,255,255,.2))}
  .rows{margin-top:0}
  .arrow{display:none}
}

/* con tem và viền thư máy bay */
.stamp{display:grid;place-items:center;padding:6px;background:linear-gradient(#fff7f5,#fff7f5) content-box,radial-gradient(circle,#fff 3px,transparent 3.5px) -5px -5px/10px 10px,#f4c4cb;box-shadow:0 6px 14px rgba(120,40,50,.12)}
.airmail{position:relative;border:10px solid transparent;background:linear-gradient(var(--card),var(--card)) padding-box,repeating-linear-gradient(-45deg,var(--acc) 0 14px,#fff 14px 24px,#3d6fb6 24px 38px,#fff 38px 48px) border-box}

/* khối chung */
.sec{padding:96px 0}
.sec.soft{background:var(--soft)}
.title{margin:0 auto 14px;text-align:center;font:800 clamp(26px,3.6vw,40px)/1.2 var(--sans);letter-spacing:-.02em;text-transform:uppercase;max-width:820px}
.title em{font-style:normal;color:var(--acc)}
.sub{margin:0 auto 44px;text-align:center;color:var(--muted);max-width:620px}
.center{text-align:center;margin-top:36px}

/* nỗi lo khi mời đông khách */
.pain-head{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:44px;font:800 clamp(22px,3vw,32px)/1.2 var(--sans);text-transform:uppercase;text-align:center}
.pain-head .big{font:700 clamp(64px,9vw,110px)/1 var(--script);color:var(--acc);text-transform:none;transform:rotate(-4deg)}
.pains{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:960px;margin:0 auto}
.pain{padding:28px 22px;border-radius:20px;background:var(--card);border:1px solid var(--line);box-shadow:0 14px 34px rgba(120,40,50,.06);text-align:center}
.pain .ic{width:70px;height:84px;margin:0 auto 16px;font-size:30px;transform:rotate(-4deg);transition:transform .4s}
.pain:nth-child(2) .ic{transform:rotate(3deg)}
.pain:hover .ic{transform:rotate(0) scale(1.08)}
.pain b{display:block;margin-bottom:4px}
.pain span{color:var(--muted);font-size:14px}
@media (max-width:760px){
  .pains{grid-template-columns:1fr;gap:12px}
  .pain{display:grid;grid-template-columns:52px 1fr;gap:4px 14px;padding:18px;text-align:left;align-items:center}
  .pain .ic{grid-row:span 2;width:52px;height:62px;margin:0;font-size:22px}
  .pain-head{gap:6px 10px;font-size:18px}
  .pain-head .big{font-size:56px}
}

/* tính năng */
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feat{position:relative;padding:26px 22px 90px;border-radius:20px;background:var(--card);border:1px solid var(--line);overflow:hidden;transition:transform .25s,box-shadow .25s}
.feat:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(120,40,50,.1)}
.feat h3{margin:0 0 10px;font:700 18px/1.35 var(--sans)}
.feat p{margin:0;color:var(--muted);font-size:14px}
.feat .blob{position:absolute;right:-18px;bottom:-18px;width:110px;height:110px;border-radius:30px;display:grid;place-items:center;font-size:40px;transform:rotate(-12deg);transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.feat:hover .blob{transform:rotate(0) scale(1.12)}
.feat:nth-child(1) .blob{background:#ffe3e7}.feat:nth-child(2) .blob{background:#fff1d6}.feat:nth-child(3) .blob{background:#e3f4ea}.feat:nth-child(4) .blob{background:#e7e9ff}
@media (max-width:960px){.feats{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.feats{grid-template-columns:1fr}}

/* ba bước */
.steps{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.step{position:relative;display:flex;gap:18px;padding-bottom:34px}
.step:not(:last-child)::before{content:"";position:absolute;left:23px;top:50px;bottom:4px;border-left:2px dashed #f2c3ca}
.step .n{flex:none;width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--acc),var(--acc2));color:#fff;font-size:20px;box-shadow:0 8px 20px rgba(214,69,93,.3);transition:transform .3s}
.step:hover .n{transform:scale(1.1) rotate(-8deg)}
.step small{color:var(--acc);font-weight:600;font-size:13px}
.step h3{margin:2px 0 4px;font:700 20px var(--sans)}
.step p{margin:0;color:var(--muted);font-size:15px}
.steps-cta{margin-left:66px}
.phone{position:relative;width:290px;height:590px;margin:0 auto;border-radius:44px;background:#111;border:10px solid #1d1718;box-shadow:0 40px 80px rgba(120,40,50,.25);overflow:hidden}
.phone iframe{position:absolute;left:0;top:0;width:390px;height:793px;border:0;transform:scale(calc(270/390));transform-origin:0 0}
.steps-wrap{position:relative}
.steps-wrap::before{content:"";position:absolute;inset:10% 15%;border-radius:50%;background:radial-gradient(circle,#ffdce2,transparent 70%);z-index:-1}
@media (max-width:860px){.steps{grid-template-columns:1fr;gap:40px}.steps-cta{margin-left:0}}

/* sổ tay cưới */
.plan{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.plan h2{margin:0 0 14px;font:800 clamp(26px,3.6vw,40px)/1.2 var(--sans);letter-spacing:-.02em}
.plan h2 .script{font-size:1.15em}
.plan p{margin:0 0 26px;color:var(--muted);font-size:17px}
.plan .acts{display:flex;gap:12px;flex-wrap:wrap}
.tag-free{display:inline-block;margin-bottom:12px;padding:4px 12px;border-radius:999px;background:#e3f4ea;color:#23764a;font-size:13px;font-weight:600}
.plan-card{padding:24px;border-radius:22px;background:var(--card);border:1px solid var(--line);box-shadow:0 20px 50px rgba(120,40,50,.1);transform:rotate(-1.5deg)}
.plan-card .top b{display:block;font:700 22px var(--script);color:var(--acc)}
.plan-card .top small{color:var(--muted);font-size:13px}
.plan-card .bar{height:8px;border-radius:999px;background:var(--soft);margin:12px 0 16px;overflow:hidden}
.plan-card .bar i{display:block;width:62%;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--acc),var(--acc2))}
.plan-card ul{margin:0;padding:0;list-style:none}
.plan-card li{display:flex;align-items:center;gap:10px;padding:10px 0;border-top:1px dashed var(--line);font-size:14.5px}
.plan-card li i{flex:none;width:20px;height:20px;border-radius:6px;border:1.5px solid #e6c6cb;display:grid;place-items:center;font-style:normal;font-size:12px;color:#fff}
.plan-card li.d i{background:var(--acc);border-color:var(--acc)}
.plan-card li.d span{color:var(--muted);text-decoration:line-through}
.plan-card li em{margin-left:auto;font-style:normal;font-size:12px;color:var(--muted)}
@media (max-width:860px){.plan{grid-template-columns:1fr;gap:36px}.plan-card{transform:none}}

/* giá */
.price-band{display:grid;grid-template-columns:auto 1fr auto;gap:40px;align-items:center;padding:40px 44px;border-radius:18px}
.price-band .big{font:700 clamp(56px,8vw,96px)/1 var(--script);color:var(--acc);transform:rotate(-4deg)}
.price-band h3{margin:0 0 6px;font:800 26px/1.25 var(--sans);text-transform:uppercase}
.price-band ul{margin:10px 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:8px 20px;color:var(--muted);font-size:14px}
.price-band li::before{content:"✓ ";color:var(--acc);font-weight:700}
@media (max-width:860px){.price-band{grid-template-columns:1fr;text-align:center;gap:20px;padding:32px 22px}.price-band ul{justify-content:center}}

/* hỏi đáp */
.faq{max-width:820px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 4px;font-weight:600;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:30px;height:30px;border-radius:50%;background:var(--card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23d6455d' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") center/14px no-repeat;transition:transform .25s}
.faq details[open] summary::after{transform:rotate(180deg)}
.faq details p{margin:0 4px 20px;color:var(--muted)}

/* kêu gọi cuối trang */
.cta{margin:0 20px 40px;padding:64px 20px;border-radius:24px;text-align:center;color:#fff}
.cta.airmail{background:linear-gradient(120deg,var(--acc),var(--acc2)) padding-box,repeating-linear-gradient(-45deg,#fff 0 14px,var(--acc) 14px 24px,#fff 24px 38px,#3d6fb6 38px 48px) border-box}
.cta h2{margin:0 0 10px;font:800 clamp(28px,4vw,44px)/1.2 var(--sans)}
.cta h2 .script{color:#fff}
.cta p{margin:0 0 26px;opacity:.9}
.cta .btn{background:var(--card);color:var(--acc)}

/* chân trang (site.js dựng) */
.foot{border-top:1px solid var(--line);padding:48px 0 36px;color:var(--muted);font-size:14px}
.foot .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;margin-bottom:28px}
.foot h4{color:var(--ink);font-size:14px;margin:0 0 12px}
.foot a{display:block;margin-bottom:8px}
.foot a:hover{color:var(--acc)}
.foot .copy{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media (max-width:700px){.foot .cols{grid-template-columns:1fr 1fr}.foot .cols>div:first-child{grid-column:1/-1}}

/* hiện dần khi cuộn (lớp rv do script gắn, các thẻ cùng hàng lệch nhau qua --d) */
html.js .rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1);transition-delay:var(--d,0s)}
html.js .rv.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  .col,.bb-in>*{animation:none}
  html.js .rv{opacity:1;transform:none}
}

/* nút đổi nền sáng / tối (theme.js dựng) */
.theme-btn{flex:none;width:40px;height:40px;padding:0;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;transition:transform .25s}
.theme-btn:hover{transform:rotate(-18deg)}
.theme-btn .i-sun,[data-theme="dark"] .theme-btn .i-moon{display:none}
[data-theme="dark"] .theme-btn .i-sun{display:block}

/* ===== nền tối ===== */
:root[data-theme="dark"]{--bg:#141012;--card:#1f191b;--soft:#1a1416;--ink:#f5ece6;--muted:#b3a5a0;--line:#342a2d;--acc:#f0687b;--acc2:#f59aa5;color-scheme:dark}
[data-theme="dark"] .hnav{background:rgba(18,13,14,.42);border-color:rgba(255,255,255,.14);box-shadow:0 10px 30px rgba(0,0,0,.3),inset 0 1px 0 rgba(255,255,255,.06);backdrop-filter:blur(18px) saturate(1.5);-webkit-backdrop-filter:blur(18px) saturate(1.5)}
[data-theme="dark"] .stamp{background:linear-gradient(#2a1f22,#2a1f22) content-box,radial-gradient(circle,var(--card) 3px,transparent 3.5px) -5px -5px/10px 10px,#6e3a45}
[data-theme="dark"] .feat:nth-child(1) .blob{background:#3a2027}[data-theme="dark"] .feat:nth-child(2) .blob{background:#3a3020}[data-theme="dark"] .feat:nth-child(3) .blob{background:#1f3328}[data-theme="dark"] .feat:nth-child(4) .blob{background:#262a40}
[data-theme="dark"] .step:not(:last-child)::before{border-color:#5a3540}
[data-theme="dark"] .steps-wrap::before{background:radial-gradient(circle,#3a1f27,transparent 70%)}
[data-theme="dark"] .tag-free{background:#1f3328;color:#7fd3a3}
[data-theme="dark"] .plan-card li i{border-color:#5a3540}
[data-theme="dark"] .plan-card .bar{background:#2a2023}
[data-theme="dark"] .bb::after{background:linear-gradient(90deg,rgba(20,16,18,.97) 0%,rgba(20,16,18,.9) 30%,rgba(20,16,18,.45) 58%,rgba(20,16,18,.15) 80%),linear-gradient(180deg,var(--bg) 0%,transparent 12%),linear-gradient(0deg,var(--bg) 0%,transparent 26%)}
[data-theme="dark"] .col img{box-shadow:none;opacity:.9}
[data-theme="dark"] .bb .b-more{background:rgba(255,255,255,.14)}
[data-theme="dark"] .arrow{background:#241d1f;border-color:rgba(255,255,255,.14);color:#fff}
[data-theme="dark"] .ncard .pic{box-shadow:none}
[data-theme="dark"] .ncard:hover .pic{box-shadow:0 18px 40px rgba(0,0,0,.55)}
[data-theme="dark"] .top .num{-webkit-text-stroke-color:#5c5254}
@media (max-width:700px){[data-theme="dark"] .bb::after{background:linear-gradient(180deg,var(--bg) 0%,transparent 12%),linear-gradient(0deg,var(--bg) 18%,rgba(20,16,18,.75) 50%,rgba(20,16,18,.2))}}

/* ba chức năng chính (thiệp / video / sổ tay) + khu giới thiệu video cưới */
.trio3{padding:10px 0 40px;margin-top:-8vh;position:relative;z-index:3}
.rows{margin-top:0!important}
.trio3 .wrap{max-width:1240px}
.t3h{margin:0 0 22px;font:800 clamp(24px,3vw,36px)/1.2 var(--sans);letter-spacing:-.02em;text-align:center}
.t3h em{font:700 1.15em var(--script);font-style:normal;color:var(--acc)}
.t3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.t3c{display:flex;flex-direction:column;border-radius:22px;overflow:hidden;background:var(--card);border:1px solid var(--line);box-shadow:0 18px 40px rgba(120,40,50,.08);transition:transform .25s,box-shadow .25s}
.t3c:hover{transform:translateY(-6px);box-shadow:0 26px 50px rgba(120,40,50,.16)}
.t3c .vis{position:relative;height:230px;overflow:hidden;background:var(--soft)}
.t3c .body{padding:18px 20px 22px}
.t3c h3{margin:0 0 6px;font:800 21px var(--sans)}
.t3c p{margin:0 0 12px;color:var(--muted);font-size:14.5px;line-height:1.55}
.t3c .go{font-weight:700;color:var(--acc);font-size:14px}
.t3c .badge{position:absolute;top:14px;left:14px;z-index:3;padding:4px 11px;border-radius:999px;background:var(--acc);color:#fff;font-size:12px;font-weight:700}
/* hình minh hoạ từng chức năng */
.v-cards img{position:absolute;bottom:-30px;width:120px;aspect-ratio:9/16;object-fit:cover;object-position:top;border-radius:12px;box-shadow:0 14px 30px rgba(0,0,0,.25);transition:transform .4s}
.v-cards img:nth-child(1){left:calc(50% - 160px);transform:rotate(-10deg)}
.v-cards img:nth-child(2){left:calc(50% - 60px);bottom:-14px;z-index:2}
.v-cards img:nth-child(3){left:calc(50% + 40px);transform:rotate(10deg)}
.t3c:hover .v-cards img:nth-child(1){transform:rotate(-14deg) translateX(-14px)}
.t3c:hover .v-cards img:nth-child(3){transform:rotate(14deg) translateX(14px)}
.v-video iframe{position:absolute;left:0;top:0;width:1280px;height:720px;border:0;pointer-events:none;transform-origin:0 0}
.v-video .play{position:absolute;left:50%;top:50%;z-index:2;width:58px;height:58px;margin:-29px 0 0 -29px;border-radius:50%;background:rgba(255,255,255,.9);display:grid;place-items:center;color:#c2415d;font-size:20px;box-shadow:0 10px 26px rgba(0,0,0,.3);transition:opacity .3s}
.t3c:hover .v-video .play{opacity:0}
.v-plan{display:grid;place-items:center;background:linear-gradient(160deg,var(--soft),var(--card))}
.v-plan ul{list-style:none;margin:0;padding:16px 18px;width:78%;border-radius:16px;background:var(--card);box-shadow:0 14px 30px rgba(120,40,50,.12);font-size:13.5px}
.v-plan li{display:flex;align-items:center;gap:10px;padding:7px 0;border-bottom:1px dashed var(--line)}
.v-plan li:last-child{border:0}
.v-plan li i{flex:none;width:18px;height:18px;border-radius:6px;border:1.5px solid var(--acc);display:grid;place-items:center;font-style:normal;font-size:11px;color:#fff}
.v-plan li.d i{background:var(--acc)}
.v-plan li.d span{text-decoration:line-through;color:var(--muted)}
.v-plan li em{margin-left:auto;font-style:normal;color:var(--muted);font-size:12px}
@media (max-width:900px){.t3{grid-template-columns:minmax(0,1fr)}.t3c .vis{height:200px}}

/* khu video cưới: TV lớn chạy thử, bấm mẫu để đổi */
.vshow{position:relative;padding:80px 0;margin-top:30px;background:radial-gradient(1200px 500px at 70% 30%,rgba(214,69,93,.10),transparent),var(--soft)}
.vshow .wrap{max-width:1240px;display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.4fr);gap:48px;align-items:center}
.vshow .kick{display:inline-block;padding:5px 12px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--acc)}
.vshow h2{margin:14px 0 12px;font:900 clamp(30px,3.6vw,46px)/1.08 var(--sans);letter-spacing:-.03em}
.vshow h2 em{display:block;font:700 1.1em/1.15 var(--script);font-style:normal;color:var(--acc);letter-spacing:0}
.vshow p.lead{margin:0 0 22px;color:var(--muted);font-size:16px;line-height:1.6}
.vs-steps{list-style:none;margin:0 0 26px;padding:0;display:grid;gap:10px}
.vs-steps li{display:flex;align-items:center;gap:12px;font-weight:600}
.vs-steps b{flex:none;display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--card);border:1px solid var(--line);color:var(--acc);font-size:14px}
.vs-steps small{display:block;font-weight:400;color:var(--muted);font-size:13px}
.vs-acts{display:flex;gap:10px;flex-wrap:wrap}
.vs-tv{position:relative}
.vs-screen{position:relative;aspect-ratio:16/9;border-radius:18px;overflow:hidden;background:#000;border:10px solid #1d1719;box-shadow:0 40px 80px rgba(40,10,20,.35)}
.vs-screen iframe{position:absolute;left:0;top:0;width:1280px;height:720px;border:0;transform-origin:0 0;pointer-events:none}
.vs-stand{width:30%;height:14px;margin:0 auto;border-radius:0 0 12px 12px;background:#1d1719}
.vs-name{position:absolute;left:22px;top:22px;z-index:2;padding:6px 12px;border-radius:999px;background:rgba(0,0,0,.55);color:#fff;font-size:13px;font-weight:600;backdrop-filter:blur(6px)}
.vs-picks{display:flex;gap:10px;margin-top:22px;overflow-x:auto;padding:4px 2px 8px;scrollbar-width:thin}
.vs-picks button{flex:none;width:118px;padding:0;border:2px solid transparent;border-radius:12px;background:var(--card);overflow:hidden;cursor:pointer;text-align:left;transition:transform .2s,border-color .2s}
.vs-picks button:hover{transform:translateY(-3px)}
.vs-picks button.on{border-color:var(--acc)}
.vs-picks img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}
.vs-picks span{display:block;padding:6px 8px;font-size:12px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.vs-picks small{display:block;padding:0 8px 7px;margin-top:-4px;color:var(--muted);font-size:11px}
@media (max-width:960px){.vshow .wrap{grid-template-columns:minmax(0,1fr)}.vshow{padding:56px 0}}

/* nút lên đầu trang (site.js tạo): góc dưới phải, chỉ hiện khi đã cuộn xuống */
.totop{position:fixed;right:18px;bottom:18px;z-index:45;width:44px;height:44px;padding:0;display:grid;place-items:center;border-radius:50%;border:0;background:linear-gradient(135deg,#d6455d,#ef7d8d);color:#fff;box-shadow:0 10px 26px rgba(214,69,93,.35);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .25s,transform .25s,visibility .25s}
.totop.on{opacity:1;visibility:visible;transform:none}
.totop:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(214,69,93,.45)}
[data-theme="dark"] .totop{box-shadow:0 10px 26px rgba(0,0,0,.5)}