diff --git a/package.json b/package.json
index 1bfc3ca..39807fe 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "last 2 versions"
   ],
   "devDependencies": {
-    "node-sass": "^6.0.1",
+    "node-sass": "^7.0.0",
     "sass-loader": "^8.0.2",
     "vue-template-compiler": "^2.6.10"
   }
diff --git a/yarn.lock b/yarn.lock
index 93f3745..a9a6e72 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1753,6 +1753,11 @@ ansi-regex@^5.0.0:
   resolved "https://registry.npm.taobao.org/ansi-regex/download/ansi-regex-5.0.0.tgz#388539f55179bf39339c81af30a654d69f87cb75"
   integrity sha1-OIU59VF5vzkznIGvMKZU1p+Hy3U=
 
+ansi-regex@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.npmmirror.com/ansi-regex/-/ansi-regex-5.0.1.tgz#082cb2c89c9fe8659a311a53bd6a4dc5301db304"
+  integrity sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==
+
 ansi-styles@^2.2.1:
   version "2.2.1"
   resolved "https://registry.npm.taobao.org/ansi-styles/download/ansi-styles-2.2.1.tgz?cache=0&sync_timestamp=1606792302448&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fansi-styles%2Fdownload%2Fansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
@@ -1798,11 +1803,24 @@ aproba@^1.0.3, aproba@^1.1.1:
   resolved "https://registry.npm.taobao.org/aproba/download/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
   integrity sha1-aALmJk79GMeQobDVF/DyYnvyyUo=
 
+"aproba@^1.0.3 || ^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.npmmirror.com/aproba/-/aproba-2.0.0.tgz#52520b8ae5b569215b354efc0caa3fe1e45a8adc"
+  integrity sha512-lYe4Gx7QT+MKGbDsA+Z+he/Wtef0BiwDOlK/XkBrdfsh9J/jPPXbX0tE9x9cl27Tmu5gg3QUbUrQYa/y+KOHPQ==
+
 arch@^2.1.1:
   version "2.2.0"
   resolved "https://registry.npm.taobao.org/arch/download/arch-2.2.0.tgz?cache=0&sync_timestamp=1603836324975&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Farch%2Fdownload%2Farch-2.2.0.tgz#1bc47818f305764f23ab3306b0bfc086c5a29d11"
   integrity sha1-G8R4GPMFdk8jqzMGsL/AhsWinRE=
 
+are-we-there-yet@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.npmmirror.com/are-we-there-yet/-/are-we-there-yet-2.0.0.tgz#372e0e7bd279d8e94c653aaa1f67200884bf3e1c"
+  integrity sha512-Ci/qENmwHnsYo9xKIcUJN5LeDKdJ6R1Z1j9V/J5wyq8nh/mYPEpIKJbBZXtZjG04HiK7zV/p6Vs9952MrMeUIw==
+  dependencies:
+    delegates "^1.0.0"
+    readable-stream "^3.6.0"
+
 are-we-there-yet@~1.1.2:
   version "1.1.5"
   resolved "https://registry.nlark.com/are-we-there-yet/download/are-we-there-yet-1.1.5.tgz#4b35c2944f062a8bfcda66410760350fe9ddfc21"
@@ -2476,7 +2494,7 @@ center-align@^0.1.1:
     align-text "^0.1.3"
     lazy-cache "^1.0.3"
 
-chalk@^1.1.1, chalk@^1.1.3:
+chalk@^1.1.3:
   version "1.1.3"
   resolved "https://registry.npm.taobao.org/chalk/download/chalk-1.1.3.tgz?cache=0&sync_timestamp=1591686984650&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fchalk%2Fdownload%2Fchalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
   integrity sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=
@@ -2496,10 +2514,10 @@ chalk@^2.0.0, chalk@^2.0.1, chalk@^2.3.0, chalk@^2.4.1, chalk@^2.4.2:
     escape-string-regexp "^1.0.5"
     supports-color "^5.3.0"
 
-chalk@^4.0.0, chalk@^4.1.0:
-  version "4.1.0"
-  resolved "https://registry.npm.taobao.org/chalk/download/chalk-4.1.0.tgz?cache=0&sync_timestamp=1591686984650&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fchalk%2Fdownload%2Fchalk-4.1.0.tgz#4e14870a618d9e2edd97dd8345fd9d9dc315646a"
-  integrity sha1-ThSHCmGNni7dl92DRf2dncMVZGo=
+chalk@^4.0.0, chalk@^4.1.0, chalk@^4.1.2:
+  version "4.1.2"
+  resolved "https://registry.npmmirror.com/chalk/-/chalk-4.1.2.tgz#aac4e2b7734a740867aeb16bf02aad556a1e7a01"
+  integrity sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==
   dependencies:
     ansi-styles "^4.1.0"
     supports-color "^7.1.0"
@@ -2725,6 +2743,11 @@ color-string@^1.5.4:
     color-name "^1.0.0"
     simple-swizzle "^0.2.2"
 
+color-support@^1.1.2:
+  version "1.1.3"
+  resolved "https://registry.npmmirror.com/color-support/-/color-support-1.1.3.tgz#93834379a1cc9a0c61f82f52f0d04322251bd5a2"
+  integrity sha512-qiBjkpbMLO/HL68y+lh4q0/O1MZFj2RX6X/KmMa3+gJD3z+WwI1ZzDHysvqHGS3mP6mznPckpXmw1nI9cJjyRg==
+
 color@^3.0.0:
   version "3.1.3"
   resolved "https://registry.npm.taobao.org/color/download/color-3.1.3.tgz#ca67fb4e7b97d611dcde39eceed422067d91596e"
@@ -2822,7 +2845,7 @@ console-browserify@^1.1.0:
   resolved "https://registry.npm.taobao.org/console-browserify/download/console-browserify-1.2.0.tgz#67063cef57ceb6cf4993a2ab3a55840ae8c49336"
   integrity sha1-ZwY871fOts9Jk6KrOlWECujEkzY=
 
-console-control-strings@^1.0.0, console-control-strings@~1.1.0:
+console-control-strings@^1.0.0, console-control-strings@^1.1.0, console-control-strings@~1.1.0:
   version "1.1.0"
   resolved "https://registry.npm.taobao.org/console-control-strings/download/console-control-strings-1.1.0.tgz#3d7cf4464db6446ea644bf4b39507f9851008e8e"
   integrity sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=
@@ -4186,6 +4209,21 @@ function-bind@^1.1.1:
   resolved "https://registry.npm.taobao.org/function-bind/download/function-bind-1.1.1.tgz#a56899d3ea3c9bab874bb9773b7c5ede92f4895d"
   integrity sha1-pWiZ0+o8m6uHS7l3O3xe3pL0iV0=
 
+gauge@^3.0.0:
+  version "3.0.2"
+  resolved "https://registry.npmmirror.com/gauge/-/gauge-3.0.2.tgz#03bf4441c044383908bcfa0656ad91803259b395"
+  integrity sha512-+5J6MS/5XksCuXq++uFRsnUd7Ovu1XenbeuIuNRJxYWjgQbPuFhT14lAvsWfqfAmnwluf1OwMjz39HjfLPci0Q==
+  dependencies:
+    aproba "^1.0.3 || ^2.0.0"
+    color-support "^1.1.2"
+    console-control-strings "^1.0.0"
+    has-unicode "^2.0.1"
+    object-assign "^4.1.1"
+    signal-exit "^3.0.0"
+    string-width "^4.2.3"
+    strip-ansi "^6.0.1"
+    wide-align "^1.1.2"
+
 gauge@~2.7.3:
   version "2.7.4"
   resolved "https://registry.nlark.com/gauge/download/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
@@ -4291,7 +4329,7 @@ glob-to-regexp@^0.3.0:
   resolved "https://registry.npm.taobao.org/glob-to-regexp/download/glob-to-regexp-0.3.0.tgz#8c5a1494d2066c570cc3bfe4496175acc4d502ab"
   integrity sha1-jFoUlNIGbFcMw7/kSWF1rMTVAqs=
 
-glob@^7.0.0, glob@~7.1.1:
+glob@^7.0.0, glob@^7.0.3, glob@^7.1.2, glob@^7.1.3, glob@^7.1.4, glob@^7.1.6, glob@~7.1.1:
   version "7.1.7"
   resolved "https://registry.nlark.com/glob/download/glob-7.1.7.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.nlark.com%2Fglob%2Fdownload%2Fglob-7.1.7.tgz#3b193e9233f01d42d0b3f78294bbeeb418f94a90"
   integrity sha1-Oxk+kjPwHULQs/eClLvutBj5SpA=
@@ -4303,18 +4341,6 @@ glob@^7.0.0, glob@~7.1.1:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-glob@^7.0.3, glob@^7.1.2, glob@^7.1.3, glob@^7.1.4, glob@^7.1.6:
-  version "7.1.6"
-  resolved "https://registry.npm.taobao.org/glob/download/glob-7.1.6.tgz?cache=0&sync_timestamp=1573078079496&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fglob%2Fdownload%2Fglob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
-  integrity sha1-FB8zuBp8JJLhJVlDB0gMRmeSeKY=
-  dependencies:
-    fs.realpath "^1.0.0"
-    inflight "^1.0.4"
-    inherits "2"
-    minimatch "^3.0.4"
-    once "^1.3.0"
-    path-is-absolute "^1.0.0"
-
 globals@^11.1.0:
   version "11.12.0"
   resolved "https://registry.npm.taobao.org/globals/download/globals-11.12.0.tgz?cache=0&sync_timestamp=1607413653875&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fglobals%2Fdownload%2Fglobals-11.12.0.tgz#ab8795338868a0babd8525758018c2a7eb95c42e"
@@ -4448,7 +4474,7 @@ has-symbols@^1.0.1:
   resolved "https://registry.npm.taobao.org/has-symbols/download/has-symbols-1.0.1.tgz#9f5214758a44196c406d9bd76cebf81ec2dd31e8"
   integrity sha1-n1IUdYpEGWxAbZvXbOv4HsLdMeg=
 
-has-unicode@^2.0.0:
+has-unicode@^2.0.0, has-unicode@^2.0.1:
   version "2.0.1"
   resolved "https://registry.npm.taobao.org/has-unicode/download/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
   integrity sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=
@@ -5520,16 +5546,11 @@ lodash.uniq@^4.5.0:
   resolved "https://registry.npm.taobao.org/lodash.uniq/download/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-lodash@^4.0.0, lodash@~4.17.10:
+lodash@^4.0.0, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.20, lodash@^4.17.3, lodash@^4.17.4, lodash@~4.17.10:
   version "4.17.21"
   resolved "https://registry.npm.taobao.org/lodash/download/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha1-Z5WRxWTDv/quhFTPCz3zcMPWkRw=
 
-lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.20, lodash@^4.17.3, lodash@^4.17.4:
-  version "4.17.20"
-  resolved "https://registry.npm.taobao.org/lodash/download/lodash-4.17.20.tgz?cache=0&sync_timestamp=1597336001963&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Flodash%2Fdownload%2Flodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
-  integrity sha1-tEqbYpe8tpjxxRo1RaKzs2jVnFI=
-
 log-symbols@^2.2.0:
   version "2.2.0"
   resolved "https://registry.npm.taobao.org/log-symbols/download/log-symbols-2.2.0.tgz#5740e1c5d6f0dfda4ad9323b5332107ef6b4c40a"
@@ -6060,13 +6081,13 @@ node-releases@^1.1.67:
   resolved "https://registry.npm.taobao.org/node-releases/download/node-releases-1.1.67.tgz?cache=0&sync_timestamp=1605581294234&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Fnode-releases%2Fdownload%2Fnode-releases-1.1.67.tgz#28ebfcccd0baa6aad8e8d4d8fe4cbc49ae239c12"
   integrity sha1-KOv8zNC6pqrY6NTY/ky8Sa4jnBI=
 
-node-sass@^6.0.1:
-  version "6.0.1"
-  resolved "https://registry.nlark.com/node-sass/download/node-sass-6.0.1.tgz#cad1ccd0ce63e35c7181f545d8b986f3a9a887fe"
-  integrity sha1-ytHM0M5j41xxgfVF2LmG86moh/4=
+node-sass@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.npmmirror.com/node-sass/-/node-sass-7.0.0.tgz#33ee7c2df299d51f682f13d79f3d2a562225788e"
+  integrity sha512-6yUnsD3L8fVbgMX6nKQqZkjRcG7a/PpmF0pEyeWf+BgbTj2ToJlCYrnUifL2KbjV5gIY22I3oppahBWA3B+jUg==
   dependencies:
     async-foreach "^0.1.3"
-    chalk "^1.1.1"
+    chalk "^4.1.2"
     cross-spawn "^7.0.3"
     gaze "^1.0.0"
     get-stdin "^4.0.1"
@@ -6075,7 +6096,7 @@ node-sass@^6.0.1:
     meow "^9.0.0"
     nan "^2.13.2"
     node-gyp "^7.1.0"
-    npmlog "^4.0.0"
+    npmlog "^5.0.0"
     request "^2.88.0"
     sass-graph "2.2.5"
     stdout-stream "^1.4.0"
@@ -6159,7 +6180,7 @@ npm-run-path@^4.0.0:
   dependencies:
     path-key "^3.0.0"
 
-npmlog@^4.0.0, npmlog@^4.1.2:
+npmlog@^4.1.2:
   version "4.1.2"
   resolved "https://registry.nlark.com/npmlog/download/npmlog-4.1.2.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.nlark.com%2Fnpmlog%2Fdownload%2Fnpmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
   integrity sha1-CKfyqL9zRgR3mp76StXMcXq7lUs=
@@ -6169,6 +6190,16 @@ npmlog@^4.0.0, npmlog@^4.1.2:
     gauge "~2.7.3"
     set-blocking "~2.0.0"
 
+npmlog@^5.0.0:
+  version "5.0.1"
+  resolved "https://registry.npmmirror.com/npmlog/-/npmlog-5.0.1.tgz#f06678e80e29419ad67ab964e0fa69959c1eb8b0"
+  integrity sha512-AqZtDUWOMKs1G/8lwylVjrdYgqA4d9nu8hc+0gzRxlDb1I10+FHBGMXs6aiQHFdCUUlqH99MUMuLfzWDNDtfxw==
+  dependencies:
+    are-we-there-yet "^2.0.0"
+    console-control-strings "^1.1.0"
+    gauge "^3.0.0"
+    set-blocking "^2.0.0"
+
 nth-check@^1.0.2, nth-check@~1.0.1:
   version "1.0.2"
   resolved "https://registry.npm.taobao.org/nth-check/download/nth-check-1.0.2.tgz#b2bd295c37e3dd58a3bf0700376663ba4d9cf05c"
@@ -8321,6 +8352,15 @@ string-width@^1.0.1:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^4.0.0"
 
+"string-width@^1.0.2 || 2 || 3 || 4", string-width@^4.2.3:
+  version "4.2.3"
+  resolved "https://registry.npmmirror.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
+  integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
+  dependencies:
+    emoji-regex "^8.0.0"
+    is-fullwidth-code-point "^3.0.0"
+    strip-ansi "^6.0.1"
+
 string-width@^3.0.0, string-width@^3.1.0:
   version "3.1.0"
   resolved "https://registry.npm.taobao.org/string-width/download/string-width-3.1.0.tgz#22767be21b62af1081574306f69ac51b62203961"
@@ -8397,6 +8437,13 @@ strip-ansi@^6.0.0:
   dependencies:
     ansi-regex "^5.0.0"
 
+strip-ansi@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.npmmirror.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
+  integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
+  dependencies:
+    ansi-regex "^5.0.1"
+
 strip-eof@^1.0.0:
   version "1.0.0"
   resolved "https://registry.npm.taobao.org/strip-eof/download/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
@@ -9263,6 +9310,13 @@ wide-align@^1.1.0:
   dependencies:
     string-width "^1.0.2 || 2"
 
+wide-align@^1.1.2:
+  version "1.1.5"
+  resolved "https://registry.npmmirror.com/wide-align/-/wide-align-1.1.5.tgz#df1d4c206854369ecf3c9a4898f1b23fbd9d15d3"
+  integrity sha512-eDMORYaPNZ4sQIuuYPDHdQvf4gyCF9rEEV/yPxGfwPkRodwEgiMUUXTx/dex+Me0wxx53S+NgUHaP7y3MGlDmg==
+  dependencies:
+    string-width "^1.0.2 || 2 || 3 || 4"
+
 window-size@0.1.0:
   version "0.1.0"
   resolved "https://registry.npm.taobao.org/window-size/download/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"