/* 全部新增视觉均位于主体下方，不改动标志、唱片、标题及控制条的布局规则。 */
.design-decoration{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:3;color:#eff8ff}.decor-svg{position:absolute;inset:0;width:100%;height:100%}.decor-svg text{font-family:"Outfit","PingFang SC","Microsoft YaHei",sans-serif;font-weight:400}.tiny-wide{font-size:8px;letter-spacing:1.8px}.small-cn{font-size:10px;letter-spacing:2px}.poetic-cn{font-size:13px;letter-spacing:4px}.decor-svg .letter-hand{font-family:"LikeJianJianTi",cursive;font-size:21px;letter-spacing:2px}.stamp-label{font-size:7px;letter-spacing:1px}
html[data-theme=original] .design-decoration{display:none}
html:not([data-theme=original]) .breeze-layer{display:none}
html:is([data-theme=archive],[data-theme=letter],[data-theme=frost],[data-theme=orbit]) .cotton-layer{display:none}
html[data-theme=archive],html[data-theme=archive] body{background:linear-gradient(165deg,#a9c5df 0%,#7ca4ce 33%,#426fa3 67%,#234366 100%)}
.archive-panel{position:absolute;inset:14px;border:1px solid #f1f7ff5e;box-shadow:inset 0 0 0 5px #ffffff08;background:linear-gradient(90deg,#ffffff04 1px,transparent 1px) 0 0/24px 100%}.archive-panel::after{content:"W";position:absolute;bottom:-38px;right:15px;font-family:Georgia,serif;font-size:210px;color:transparent;-webkit-text-stroke:1px #f2f8ff17;line-height:1}.archive-side{position:absolute;top:36%;left:20px;writing-mode:vertical-rl;transform:rotate(180deg);font-size:7px;letter-spacing:2.4px;color:#edf6ffb0}
html[data-theme=glow],html[data-theme=glow] body{background:radial-gradient(ellipse at 12% 28%,#dff5ff99,transparent 40%),linear-gradient(170deg,#d2e7f4,#88b6dc 39%,#4d82b7 74%,#326191)}
html[data-theme=glow] .cotton-item{opacity:.38}.glow-veil{position:absolute;border-radius:50%;filter:blur(21px);transform:rotate(-25deg)}.veil-one{width:195px;height:800px;right:-66px;top:-112px;background:linear-gradient(90deg,transparent,#d4f8ffae,transparent);box-shadow:-30px 0 60px #cceffb66}.veil-two{width:180px;height:490px;left:-84px;bottom:-85px;background:linear-gradient(90deg,transparent,#cde9ffc2,transparent);transform:rotate(40deg)}.glow-halo{position:absolute;width:340px;height:340px;top:31%;left:50%;transform:translateX(-50%);border-radius:50%;background:radial-gradient(circle,#fff2df61,transparent 68%);filter:blur(8px)}.light-star{position:absolute;color:#ecfcff;text-shadow:0 0 16px white}.star-one{left:40px;top:35%;font-size:25px}.star-two{right:43px;bottom:27%;font-size:36px}
html[data-theme=letter],html[data-theme=letter] body{background:linear-gradient(160deg,#bfd1db,#8dacbf 34%,#6488a4 67%,#3b6182)}
.letter-paper{position:absolute;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.76' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23fff' filter='url(%23n)' opacity='.28' d='M0 0h180v180H0z'/%3E%3C/svg%3E");opacity:.3;mix-blend-mode:soft-light}.letter-edge{position:absolute;inset:13px;border:1px solid #f4f4e77d;box-shadow:inset 0 0 0 5px #e5e8df0c}.letter-edge::after{content:"";position:absolute;inset:6px;border:1px dashed #e8f3ff3b}.letter-fold{position:absolute;right:14px;bottom:14px;width:28px;height:28px;background:linear-gradient(135deg,transparent 49%,#e7f0ec9e 50%,#8ba7b6 100%);filter:drop-shadow(-2px -2px 2px #2038491c)}
html[data-theme=quilt],html[data-theme=quilt] body{background:linear-gradient(180deg,#c4dcf1,#92b9df 34%,#6394c7 65%,#3c6796)}
.quilt-fabric{position:absolute;inset:0;background:radial-gradient(ellipse at center,#f1f7ff30,transparent 70%) 0 0/130px 140px;opacity:.9}.quilt-fabric::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,#ffffff06 0 1px,transparent 1px 3px),repeating-linear-gradient(90deg,#1d467704 0 1px,transparent 1px 3px)}html[data-theme=quilt] .cotton-item{opacity:.6}.woven-tag{position:absolute;top:75%;left:50%;transform:translateX(-50%) rotate(-3deg);display:flex;align-items:center;gap:10px;color:#345b7d;background:#e5eff1;border:1px solid #fff8;padding:10px 18px;box-shadow:2px 5px 8px #25497124;outline:1px dashed #6d8aa655;outline-offset:-5px;white-space:nowrap}.woven-tag>span:not(.tag-symbol){font-size:9px;letter-spacing:2px}.woven-tag small{display:block;font-size:7px;letter-spacing:2px;margin-top:4px}.tag-symbol{font-size:25px;font-weight:300}.woven-tag i{height:38px;width:4px;border-left:1px dashed #7291ac7a;margin-left:7px}
html[data-theme=frost],html[data-theme=frost] body{background:linear-gradient(170deg,#d4e9f4,#8eb8d4 36%,#578bad 65%,#315f82)}
.frost-arch{position:absolute;inset:24px 27px 25px;border:1px solid #effcff78;border-radius:185px 185px 5px 5px;box-shadow:0 0 0 7px #e3f6ff0e,inset 0 0 34px #e6f6ff1f}.frost-light{position:absolute;inset:0;background:radial-gradient(ellipse at 50% 0,#f5ffff57,transparent 48%),linear-gradient(90deg,#edfaff3d,transparent 16%,transparent 84%,#edfaff3d)}.frost-grain{position:absolute;inset:0;background-image:radial-gradient(circle,#f0fbff 1px,transparent 1.5px),radial-gradient(circle,#e1f5ffb0 1px,transparent 2px);background-position:11px 18px,27px 67px;background-size:63px 111px,103px 139px;mask-image:linear-gradient(90deg,black,transparent 24%,transparent 76%,black);opacity:.7}
html[data-theme=orbit],html[data-theme=orbit] body{background:radial-gradient(ellipse at 50% 43%,#a7c5e2 0%,transparent 54%),linear-gradient(180deg,#b6cde3,#719ac4 43%,#305c8b)}
.orbit-microgrid{position:absolute;inset:0;background:radial-gradient(circle,#e5f6ff6b .65px,transparent 1px) 0 0/16px 16px;mask-image:linear-gradient(180deg,black,transparent 30%,transparent 65%,black);opacity:.45}
@media(prefers-reduced-motion:reduce){.cotton-item,.cotton-fluff,.vinyl-disc,.vinyl-rotating-plate{animation:none!important}.vinyl-tonearm{transition:none!important}}